CN101055061B

CN101055061B - Light guide, method and apparatus for manufacturing the same, and illuminating system having the same

Info

Publication number: CN101055061B
Application number: CN2006101685073A
Authority: CN
Inventors: 李尚勋; 黄甲镇
Original assignee: LG Electronics Inc
Current assignee: LG Electronics Inc
Priority date: 2006-04-13
Filing date: 2006-12-14
Publication date: 2010-05-26
Anticipated expiration: 2026-12-14
Also published as: KR20070102006A; CN101055061A; KR101233199B1

Abstract

The present invention is directed to a light guide whose one or both sides are structured, a method and an apparatus for manufacturing the same. The present invention is also directed to an illuminating system using the light guide whose one or both sides are structured. The illuminating system comprises a light source part including a light source generating a light and an optical guide optically connected with the light source part for emitting a light inputted from the light source part to outside. The optical guide comprises a hollow outer pipe and a hollow inserted body inserted into the outer pipe, wherein its one side is extended in a substantially same direction as a longitudinal direction to the optical guide, and it is structured with a plurality of linear structures arranged side by side.

Description

Fiber waveguide and manufacturing method and apparatus thereof and illuminator with it

The cross reference of related application

The priority of the 10-2006-0066761 that the 10-2006-0053199 that the korean patent application 10-2006-0033586 that the application submitted to based on April 13rd, 2006, on June 13rd, 2006 submit to and on July 18th, 2006 submit to.These applications are hereby incorporated by.

Technical field

The application relates to fiber waveguide that its one or two surface is configured and the method and apparatus of making it.The application also relates to the illuminator of using the fiber waveguide that its one or two surface is configured.

Background technology

In the prior art, it is known using the lighting apparatus of fiber waveguide, by this fiber waveguide, light can be transmitted into relatively little loss at a distance.Fiber waveguide is also referred to as photoconductive tube, light pipe or session, and is used for distribute effectively on big relatively zone decoration or function light.

As known in the art, can be by the illumination optical film of making by clear polymer with tubular crimp, and be fixed within the transparent propene acid tube, and make fiber waveguide.The illumination optical film comprises the smooth inner-side of configuration not and is configured the outside with linear columns volume array that this linearity cylinder forms a plurality of triangular grooves along specific direction.According to the said structure feature, fiber waveguide is limited within the fiber waveguide by inner total reflection at the light that is imported into fiber waveguide within the special angle by it at the length direction transmission light of fiber waveguide.Disclose as above-mentioned typical fiber waveguide in the US patent No. 4,805,984, this patent is incorporated herein by reference.

Below, with reference to the accompanying drawings, be used for understanding within the scope of the present invention at needs, the light transmission of the fiber waveguide with above-mentioned structure and the principle of reflection are described.

Figure 1A is the sectional view of declaratives illumination optical film, has described transmission and reflection in the fiber waveguide of illuminator of the prior art.And Figure 1B is the perspective view of declaratives illumination optical film, has described the transmission and the reflection of the fiber waveguide in the illuminator of the prior art.But for easy purpose, in the accompanying drawings, the inboard of configuration is not a upside, and the outside of configuration is a downside.

With reference to Figure 1A and 1B, from the light incident of light source (not shown) and be refracted to the inboard (point 1) of the not configuration of illumination optical film, (point 2 and point 3) total reflection on the cylinder both sides in the outside of configuration, the light that advances to the outside thus is refracted (point 4) in the inboard, and be input to the inboard once more, as shown by arrows.Owing to repeat this total reflection, light transmits along the length direction of fiber waveguide basically.Therefore, can strengthen from the transmittability of the light of light source generation by using the illumination optical film.

By using the illumination optical film, aforesaid illuminator of the prior art is improved the transmittability of the light that generates from light source, but from light source at a distance and the brightness closely very big difference is arranged.That is, be difficult to control aptly the light transmission in the fiber waveguide and be transmitted into the light in the outside, and on the length direction of the illuminator of prior art, be difficult to obtain consistent brightness.

Be incorporated herein above-mentioned reference as a reference, be used for instructing aptly details and/or technical background extra or that replace.

Description of drawings

The preferred embodiments of the present invention are described with reference to the accompanying drawings, identical therein reference number indication components identical, in the accompanying drawings:

Figure 1A is the sectional view of declaratives illumination optical film, with the transmission and the reflection of the light in the fiber waveguide of using in the illuminator that is described in prior art;

Figure 1B is the perspective view of declaratives illumination optical film, with the transmission and the reflection of the light in the fiber waveguide of using in the illuminator that is described in prior art;

Fig. 2 is the perspective view of explanation according to the illuminator of the first embodiment of the present invention;

Fig. 3 is that I-I along the line got according to the sectional view of the illuminator of the first embodiment of the present invention of Fig. 2 in explanation;

Fig. 4 A and Fig. 4 B are the perspective view and the sectional views of the insertion body of key diagram 3;

Fig. 5 A to Fig. 5 C is the sectional view of another embodiment of the insertion body of key diagram 3;

Fig. 6 A to Fig. 6 D is the sectional view of another embodiment of the insertion body of key diagram 3;

Fig. 7 A sectional view that to be explanation got along line I-I according to the illuminator of second embodiment of Fig. 2;

Fig. 7 B sectional view that to be explanation got along line II-II according to the fiber waveguide of second embodiment of Fig. 2;

Fig. 7 C is the sectional view that the part of key diagram 7A and Fig. 7 B is inserted body;

Fig. 8 is the transmission of the light in the fiber waveguide of key diagram 7A and 7B and the figure that separates;

Fig. 9 A sectional view that to be explanation got along line I-I according to the illuminator of the 3rd embodiment of Fig. 2;

Fig. 9 B sectional view that to be explanation got along line II-II according to the fiber waveguide of the 3rd embodiment of Fig. 2;

Fig. 9 C is the figure on other surfaces of the insertion body of key diagram 9A and Fig. 9 B;

Figure 10 is the transmission of the light in the fiber waveguide of key diagram 9A and Fig. 9 B and the figure that separates;

Figure 11 A is the sectional view of another embodiment of the fiber waveguide of key diagram 9A;

Figure 11 B and 11C are the figure that a surface of inserting body partly is described, are used for another embodiment of the fiber waveguide of key diagram 9A; And

Figure 12 is the figure of the method and apparatus of principle ground explanation illumination optical film according to an embodiment of the invention.

The specific embodiment

An illuminator that target provides a kind of fiber waveguide and uses it of the present invention, this fiber waveguide can be divided luminous intensity distribution on the length direction of fiber waveguide.

Another target of the present invention provides a kind of method and apparatus that is used to make the illumination optical film, and it is by the two sides of continuous this illumination optical film of operation configuration.

From detailed description given below, the further scope of application of the present invention is conspicuous.Yet, should understand, the method specific examples that provides this detailed description and point out the preferred embodiments of the present invention by explanation only, because to those skilled in the art, within the spirit and scope of the present invention various changes and improvements are conspicuous from describe in detail.

In the accompanying drawing below, all using identical drawing reference numeral to indicate same or analogous parts among the embodiment.In addition, do not repeat specifying of same parts.

Fig. 2 is the perspective view of explanation illuminator according to an embodiment of the invention.Fig. 3 is that I-I along the line got according to the sectional view of the illuminator of the first embodiment of the present invention of Fig. 2 in explanation.And Fig. 4 A and Fig. 4 B are the perspective view and the sectional view of the insertion body of key diagram 3.

With reference to Fig. 2 and 3, illuminator 100 according to an embodiment of the invention comprises the Lights section 110, fiber waveguide 120 and reflection cap 130.

The Lights section 110 generates light by the power that provides from external power equipment (not shown).And the light that generates from the Lights section 110 is provided for the fiber waveguide 120 that is connected with the Lights section 110 light.

The speculum 114 of the rear side that the Lights section 110 comprises the light source 112 that generates light, be arranged on light source 112 and hold light source 112 and the shell 116 of speculum 114.

The power that provides from the outside is provided light source 112, and the light of specific wavelength is provided.Consider the situation of setting up illuminator 100,, can use various light source of the prior art as light source 112.For example, as light source 112, can use halogen light source, light emitting diode, metal halide light or plasma source.

Speculum 114 is set at the rear side of light source 112, and will be reflected into from the light that light source 112 generates and incide fiber waveguide 120.Change the structure of speculum 114 according to the length of the fiber waveguide of input light, but aspherical mirror normally.

Speculum 114 can be made of metal with well processed type or plastics.Here, the surface of speculum 114 preferably has the film of being made by the metal with excellent reflection (as aluminium or silver) at least.

In shell 116, be formed for comprising the space of light source 112 and speculum 114, so that they are protected from external environment.Preferably have the material of good strength, excellent heat impedance and superior workability by use, for example metal is made shell 116.

In the end of shell 116, fiber waveguide 120 is set with being removably installed, the Lights section 110 is connected with fiber waveguide 120 light thus.

In the light input waveguide 120 that generates from light source 112, and fiber waveguide 120 with the light imported in its length direction transmission, and light spread to the outside.

Fiber waveguide 120 comprises outer catheter (pipe) 126 and inserts body 122.

Outer catheter 126 is pipes of hollow, inserts body 122 in interior maintenance, and supports it.Preferred outer catheter 126 is made by the thermoplastic resin with good light transmissivity, mechanical strength (particularly clashing into impedance), thermal impedance and electrical stability.More preferably, outer catheter 126 is made by PETG (PET), Merlon (PC) or polymethyl methacrylate (PMMA).Most preferably, outer catheter 126 is made by polymethyl methacrylate (PMMA).Because PMMA has high strength, it is not easy to break and be out of shape.Equally, PMMA has high transmission of visible light, is the appropriate materials of fiber waveguide therefore.

Inserting body 122 is illumination optical films that its both sides are configured, perhaps the photoconductive tube that is configured of its both sides.

Specifically,, be filled with transparent medium in inside according to the insertion body 122 of the first embodiment of the present invention with reference to Fig. 4 A and 4B, air for example, and be photoconductive tube or illumination optical film is that these parts are actually coiling and hollow.Insert body 122 and have the suitable structure that is used for passing through the light of the Lights section 110 inputs along its length direction transmission.

Insert body 112 and comprise the outside 22, this outside 22 comprises a plurality of projections 23, and the part that extends to and insert body 122 length direction equidirectionals in this projection 23 has the triangular shaped of isosceles roughly.

At this moment, on the outside 22 of inserting body 122, projection 23 is set abreast.

Equally, inserts body 122 and comprise and the outside 22 opposed inside 24, and the inboard 24 of inserting body 122 comprises a plurality of grooves 25, in groove 25 with insert the part of extending in the body 122 length direction equidirectionals and have the triangular shaped of isosceles roughly.

At this moment, on the inboard 24 of inserting body 122, groove 25 is set abreast.

Inserting the inboard 24 of body 122 and this structure that the outside 22 is configured is the feature of first embodiment.

The groove 25 of inboard 24 can be set corresponding to the projection 23 in the outside 22 at this moment.

In addition, can on part inboard 24, groove 25 be set corresponding to the part outside 22 that is provided with projection 23.

Making under the situation of insertion body 122 as photoconductive tube, can use material, for example Merlon, polymethyl methacrylate, acrylic acid, polypropylene, polystyrene or polyvinyl chloride with good light transmissivity and machinery and heat endurance.Preferably, photoconductive tube is made by Merlon or polymethyl methacrylate.

By in the longitudinal direction by the extruder extruding of preprocessing, the photoconductive tube with said structure can be inserted body 122 and be fabricated to monomer, and needn't handle extraly.

Yet, make to insert under the situation of body 122 as the illumination optical film, can use have the good light transmittance, the material of mechanical strength (particularly impact impedance), thermal impedance and electrical stability, for example Merlon or polymethyl methacrylate.The insertion body of Zhi Zaoing is the form of continuous slab like this, and is cut having the size corresponding to the length of outer catheter 126, and fixes with the insertion state with tubular crimp and in outer catheter 126.

Below, with the transmission and the distribution of explanation light of generation in having the insertion body 122 of said structure.In this detailed description, " incident angle " refer to when the light that transmits in a kind of medium arrives interface with another medium, with the angle of the normal at interface.

At first, if being input to the light that inserts in the body 122 has greater than the default critical angle of refractive index (θ c) by the medium that inserts body 122 and encirclement insertion body 122, because snell law well known in the art, reflect this light by total reflection condition, be transferred to the light that inserts outside the body 122 thus and be limited in once more in the insertion body 122, and in the length direction that inserts body 122, transmit basically by inserting body 122.At this moment, filling the medium that inserts body 122 is air, therefore can transmit light in inserting body 122, has seldom or not loss.

Yet, have incident light less than the incidence angle of critical angle (θ c) and output to and insert outside the body 122.By this way, be input to the light that inserts in the body 122 and transmit on the length direction that inserts body 122, it is transmitted into and inserts outside the body 122 simultaneously.

This technological concept of the present invention is not restricted to the structure according to the insertion body 122 of the foregoing description, to the technical staff of this area institute various changes and modifications can be arranged.

Below, will explain the various improvement of inserting body.

Fig. 5 A to Fig. 5 C is the sectional view that the insertion body is described according to another embodiment of Fig. 3.

In Fig. 5 A, insert body 122 and comprise the outside 42, this outside 42 comprises a plurality of projections 43, in this projection 43 with insertion body 142 length direction equidirectionals in the part of extending have the triangular shaped of isosceles roughly.

At this moment, on the outside 42 of inserting body 142, projection 43 is set abreast.

Equally, inserts body 142 and comprise and the outside 42 opposed inside 44, and the inboard 44 of inserting body 142 comprises a plurality of grooves 45, in groove 45 with insert the part of extending in the body 142 length direction equidirectionals and have the triangular shaped of isosceles roughly.

The projection 45 of inboard 44 can be set corresponding to the projection 43 in the outside 42 at this moment.

In addition, can on part inboard 44, projection 45 be set corresponding to the part of the projection 43 in the outside 42.

In Fig. 5 B, insert body 152 and comprise the outside 52, this outside 52 comprises a plurality of projections 53, in this projection 53 with insertion body 152 length direction equidirectionals in the part of extending have roughly trapezoidal shape.

At this moment, on the outside 52 of inserting body 152, projection 53 is set abreast.

Equally, inserts body 152 and comprise and the outside 52 opposed inside 54, and the inboard 54 of inserting body 152 comprises a plurality of grooves 55, in groove 55 with insert the part of extending in the body 152 length direction equidirectionals and have the triangular shaped of isosceles roughly.

At this moment, on the inboard 54 of inserting body 152, groove 55 is set abreast.

Inboard 54 triangular groove 55 can be set corresponding to the projection 53 in the outside 52.

In addition, can on the part inboard 54 corresponding to the part outside 52 that projection 53 is set groove 55 be set thereon.

In Fig. 5 C, to insert body 162 and comprise the outside 62, this outside 62 comprises a plurality of projections 63, in a plurality of projections 63, the part of extending in the direction identical with inserting body 162 length directions has roughly trapezoidal shape.

At this moment, on the outside 62 of inserting body 162, projection 63 is set abreast.

Equally, inserts body 162 and comprise and the outside 62 opposed inside 64, and the inboard 64 of inserting body 162 comprises a plurality of projections 65 that in this projection 65, the part of extending has roughly isosceles triangle shape in the direction identical with inserting body 162 length directions.

At this moment, on the inboard 64 of inserting body 162, projection 65 is set abreast.

Similar to the aforementioned embodiment, inboard 64 projection 54 can be set corresponding to the projection 63 in the outside 162.

In addition, can on correspondence is provided with the part inboard 64 in the part outside 62 of projection 63 thereon, projection 65 be set.

Except the foregoing description can have other various embodiment, briefly explain below with reference to accompanying drawings.

Fig. 6 A to Fig. 6 D is the sectional view of insertion body of another embodiment of key diagram 3.

In Fig. 6 A, insert body 172 and comprise the outside 72 and inboard 74, this outside 72 comprises a plurality of projections 73, in a plurality of projections 73, the part of extending in the direction identical with inserting body 172 length directions has roughly isosceles triangle shape, and should comprise a plurality of grooves 75 in inboard 74, in a plurality of grooves 75, the part of extending in the direction identical with inserting body 172 length directions has roughly trapezoidal shape.

At this moment, inboard 74 groove 75 can be set corresponding to the projection on the outside 72 73.

In addition, can on correspondence is provided with the part inboard 74 in the part outside 72 of projection 73 thereon, groove 75 be set.

In Fig. 6 B, insert body 182 and comprise the outside 82 and inboard 84, this outside 82 comprises a plurality of grooves 83, in a plurality of grooves 83, the part of extending in the direction identical with inserting body 182 length directions has roughly isosceles triangle shape, and should comprise a plurality of projections 85 in inboard 84, in a plurality of projections 85, the part of extending in the direction identical with inserting body 182 length directions has roughly trapezoidal shape.

At this moment, inboard 84 projection 85 can be set corresponding to the groove on the outside 82 83.

In addition, can be corresponding on the part inboard 84 of the groove 85 that is provided with between the structure on the outside 82 83, groove 85 being set.

In Fig. 6 C, insert body 192 and comprise the outside 92 and inboard 94, this outside 92 comprises a plurality of projections 93, in a plurality of projections 93, the part of extending in the direction identical with inserting body 192 length directions has roughly isosceles triangle shape, and should comprise a plurality of grooves 95 in inboard 94, in a plurality of grooves 95, the part of extending in the direction identical with inserting body 192 length directions has roughly trapezoidal shape.

At this moment, inboard 94 groove 95 can be set corresponding to the projection on the outside 92 93.

In addition, can on correspondence is provided with the part inboard 94 in the part outside 92 of projection 93 thereon, groove 95 be set.

In Fig. 6 D, insert human body 202 and comprise the outside 102 and inboard 104, a plurality of projections 103 are drawn together in this outside 102, in a plurality of projections 103, the part of extending in the direction identical with inserting body 202 length directions has roughly trapezoidal shape, and should comprise a plurality of grooves 105 in inboard 104, in a plurality of grooves 105, the part of extending in the direction identical with inserting body 202 length directions has roughly trapezoidal shape.

At this moment, inboard 104 groove 105 can be set corresponding to the groove that between the projection 93 in the outside 102, is provided with.

In addition, can be corresponding on the part inboard 104 of the groove that is provided with between the projection on the outside 102 103, groove 105 being set.

Referring again to Fig. 2 and Fig. 3, reflection cap 130 is arranged on the end of fiber waveguide 120 separably.Reflection cap 130 increases the service efficiency of light by reflection and the light of reusing the end that is transferred to fiber waveguide 120, and the brightness of the end by being increased in fiber waveguide 120 strengthens the uniformity of Illumination Distribution.

The speculum 134 that reflection cap 130 comprises cap portion 132 and fixes in cap portion 132.

Cap portion 132 combines with fiber waveguide 120 with being removably installed, makes speculum 134 be set on the end of fiber waveguide 120.

Speculum 134 is set in the reflection cap 130, and reflection arrives the light of the end of fiber waveguide 120.Therefore, speculum 134 can be made of overlay film, and this overlay film comprises the metal material with good light reflectance, for example the metal of aluminium or silver.

Speculum 134 forms plane or spheric reflector.Under the situation that speculum 134 is formed by spheric reflector, the concave mirror that has less than 0.001 curvature is preferred.

Below, with explanation illuminator according to a second embodiment of the present invention.

Fig. 7 A sectional view that to be explanation got along line I-I according to the illuminator of second embodiment of Fig. 2.Fig. 7 B sectional view that to be explanation got along line II-II according to the fiber waveguide of second embodiment of Fig. 2.Fig. 7 C is the sectional view that the part of key diagram 7A and Fig. 7 B is inserted body.And Fig. 8 is the transmission of the light in the fiber waveguide of key diagram 7A and 7B and the figure that separates.

In Fig. 2 and Fig. 7 A, illuminator 200 according to a second embodiment of the present invention comprises the Lights section 110, fiber waveguide 220 and reflection cap 130.Yet,, so will omit further specifying to it according to identical with according to the illuminator 100 of first embodiment of the structure of the Lights section 110 of second embodiment and reflection cap 130.Hereinafter, will describe fiber waveguide 220 in detail.

With reference to Fig. 7 A to 7C, fiber waveguide 220 comprises outer catheter 226 and inserts body 222.

Outer catheter 226 is pipes of hollow, inserts body 222 in interior maintenance, and supports it.Preferably outer catheter 226 and insertion body 222 are made by the thermoplastic resin with good light transmissivity, mechanical strength (particularly clashing into impedance), thermal impedance and electrical stability.More preferably, outer catheter 226 and insertion body 222 are made by PETG (PET), Merlon (PC) or polymethyl methacrylate (PMMA).Most preferably, outer catheter 226 is made by Merlon (PC), is made by polymethyl methacrylate (PMMA) and insert body 222.Therefore PC has high strength, be not easy to break and be out of shape, and PMMA has the high transmissivity of visible light, so is the appropriate materials of fiber waveguide.

Inserting body 222 is illumination optical film or photoconductive tube.

Specifically, according to a second embodiment of the present invention insertion body 222 is filled with transparent medium in inside, air for example, and be photoconductive tube or illumination optical film, and these parts are actually the hollow of coiling.Preferably, insert body 222 and have the structure that is used for passing through the light of the Lights section 110 inputs along its length direction transmission.

The inboard 222b that inserts body 222 is configured as has the micro prism 223 that is arranged as little spacing in the longitudinal direction.At this moment, each part of prismatic 223 can be the shape of isosceles triangle, scalene triangle or equilateral triangle, is preferably isosceles triangle.

The outside 222a that inserts body 222 can be the smooth surface of configuration not, is imported into the light of fiber waveguide 220 by its output.

In inserting the outside 222a of body 22, can with reflecting material for example the metal of Ag or A1 form reflective graphics 224.Reflective graphics 224 can form and be used to reflect the dot pattern that is input to the light that inserts body 222.Equally, in fiber waveguide 220, reflective graphics 224 reflections and constraint light.

By this way, part light is transferred in the fiber waveguide 220, and simultaneously the light of other parts is transmitted into the outside of fiber waveguide 220 by inserting body 222, and making can be from the whole surface output light of fiber waveguide 20.

Preferably, be big by the reflective graphics 224 occupied areas on the outside 222a that inserts body 222 approaching the Lights section 110 places that wherein light quantity is big, and be little near reflection cap 130 places that wherein light quantity is little.That is, reduce inversely by occupied area of the reflective graphics on the outside 222a that inserts body 222 224 and distance apart from the Lights section 110.The result, light can be transmitted on the whole area of fiber waveguide 220 equably, and no matter with the distance of the Lights section 110 because in the area that approaches the Lights section 110, by reflective graphics 224 in fiber waveguide 220, retrained wide in away from the area of the Lights section 110.

Alternatively, can configuration insert the outside 222a of body 222, and the inboard 222b that inserts body 222 is the smooth surface of configuration not.In this case, in the inboard 222b that inserts body 222, form reflective graphics 224.

Hereinafter, will the operation of illuminator 200 according to a second embodiment of the present invention be described.

With reference to Fig. 7 A to 7C and Fig. 8, at first, if from the power supply light source 112 of external power source (not shown), light source 112 generates light.The part light that generates from light source 112 is directly inputted to and is provided with in the fore fiber waveguide 220, and part light is in speculum 114 reflections that are arranged on the rear portion, and is input in the fiber waveguide 220.

The part light L1 that is input to fiber waveguide 220 reflects at prism 223 places of the inboard 222b of the configuration of inserting body 222, and incides the outside 222a that inserts body 222, does not particularly form the zone of reflective graphics 224 thereon.In brief, the part light L1 that incides the zone that does not form reflective graphics 224 thereon transmits on the length direction of fiber waveguide 220 by total reflection, and other light is transmitted into outside the fiber waveguide 220.

Other light L2 that is input to fiber waveguide 220 reflects at the prism place of the outside 222a of the configuration of inserting body 222, and incides the outside 222a that inserts body 222, particularly forms the zone of reflective graphics 224 thereon.In brief, incide most of smooth L2 on the zone that forms reflective graphics thereon in fiber waveguide 220 internal reflections and constraint, and very small amount of smooth L2 scattering and being transmitted into outside the fiber waveguide 220.

As mentioned above, reflective graphics 224 of the present invention is in fiber waveguide 220 internal reflections and retrain light.Therefore, consider light quantity, reflective graphics 224 be formed on have many relatively light more near the Lights section 110, and reflective graphics 224 less be formed on have lack relatively light away from the Lights section 110, the light quantity by fiber waveguide 220 emissions can be uniform thus.

Part light L1, the L2 that transmits on the length direction of fiber waveguide 220 reflected by the speculum 134 of the reflection cap 130 of the end that is arranged on fiber waveguide 220, and transmits on opposite direction once more.In this process, the light of reflection can be launched into outside the fiber waveguide 220.

As mentioned above, in illuminator 200 according to a second embodiment of the present invention, can be by inserting the light quantity that the reflective graphics that forms on the body 222 is controlled at the light quantity of transmitting on the length direction of fiber waveguide and is transmitted into the outside.Therefore, by overcoming at the near of the Lights section 110 and the differences of illumination intensities at a distance, can on the whole area of fiber waveguide 220, obtain uniform luminance.

Hereinafter, the illuminator of a third embodiment in accordance with the invention will be described in detail.

Fig. 9 A sectional view that to be explanation got along line I-I according to the illuminator of the 3rd embodiment of Fig. 2.Fig. 9 B sectional view that to be explanation got along line II-II according to the fiber waveguide of the 3rd embodiment of Fig. 2.Fig. 9 C is the figure on other surfaces of the insertion body of key diagram 9A and Fig. 9 B.And Figure 10 is the transmission of the light in the fiber waveguide of key diagram 9A and Fig. 9 B and the figure that separates.

In Fig. 2 and Fig. 9 A to 9C, the illuminator 300 of a third embodiment in accordance with the invention comprises the Lights section 110, fiber waveguide 320 and reflection cap 130.Yet,, so will omit further specifying to it according to identical with according to the illuminator 100 of first embodiment of the structure of the Lights section 110 of the 3rd embodiment and reflection cap 130.Hereinafter, will describe fiber waveguide 320 in detail.

With reference to Fig. 9 A to 9C, fiber waveguide 320 comprises outer catheter 326 and inserts body 322.

Outer catheter 326 is pipes of hollow, inserts body 322 in interior maintenance, and supports it.Preferred outer catheter 326 and insertion body 322 are made by the thermoplastic resin with good light transmissivity, mechanical strength (particularly clashing into impedance), thermal impedance and electrical stability.More preferably, outer catheter is made by PETG (PET), Merlon (PC) or polymethyl methacrylate (PMMA).Most preferably, outer catheter 326 is made by Merlon (PC), is made by polymethyl methacrylate (PMMA) and insert body 322.PC has high strength, therefore is not easy to break and be out of shape, and is the appropriate materials of outer catheter 326 therefore.And PMMA is the appropriate materials of fiber waveguide, because it has high transmission of visible light.

Inserting body 322 is illumination optical film or photoconductive tube.

Particularly, the insertion body of a third embodiment in accordance with the invention 322 is filled with transparent medium in inside, air for example, and be photoconductive tube or illumination optical film, and it is actually the hollow of coiling.Insert body 322 and have the preferred structure that is used for passing through the light of the Lights section 110 inputs along its length direction transmission.

On a side of inserting body 322, a plurality of in the longitudinal direction linear prisms 323 are arranged as little spacing, and configuration is inserted a side of body 322 thus.Equally, use a plurality of concave part 324 configurations to insert the opposite side of body 322.Therefore, configuration is inserted the both sides of body 322.

Each linear prism 323 preferably has the isosceles triangle shape.But alternatively, the interface of linear prism 323 can be isosceles triangle shape, scalene triangle shape or equilateral triangle shape.

Be no particular limitation in the formation and the setting of the concave part 324 that forms on the opposite side that inserts body 322.

In the third embodiment of the present invention, the concave part 324 that inserts body 322 is shapes of square indentations, and size increases with distance apart from light source 112 with being directly proportional, shown in Fig. 9 C.Concave part 324 plays by the light of scattering along fiber waveguide 320 transmission, and light is transmitted into effect outside the fiber waveguide 320.Therefore, if the size of concave part is according to changing with the distance of the Lights section 112, by inserting light quantity that body 322 transmitted in that to approach the light source place more, and be transmitted into the light quantity inserted outside the body 322 more away from light source 112 places.

Hereinafter, will the operation of the lighting apparatus 300 of a third embodiment in accordance with the invention be described.

At first, if the power supply light source 112 that produces from the external power source (not shown), light source 112 generates light.The part light that generates from light source 112 is directly inputted to and is provided with in the fore fiber waveguide 320, and part light is in speculum 114 reflections that are arranged on the rear portion, and is input in the fiber waveguide 320.

On the one hand, the light that is input to fiber waveguide 320 transmits on the length direction of fiber waveguide 320 by inserting body 322, on the other hand, is transmitted into outside the fiber waveguide 320.Particularly, as shown in figure 10, light L1, L2 are by the total reflection on a plurality of linear prisms 323 that are formed on the side of inserting body 322, and on the length direction of fiber waveguide 320, transmit, and by in the scattering of inserting a plurality of concave parts 324 that form on the opposite side of body 322, be transmitted into outside the fiber waveguide 320, illuminate surrounding environment thus.Equally, because the size of concave part 324 increases with distance from the Lights section 112 with being directly proportional, light L1, L2 incide the probability of concave part 324 to be increased with distance from the Lights section 112 with being directly proportional.Therefore, away from light source 112, compare relative more light with a spot of light and be transmitted into the outside.As a result, can reduce apart from the closely and remote luminance difference of light source 112.

Equally, the speculum 134 that the light that is transferred to the end of fiber waveguide 320 is set at the end of fiber waveguide 320 reflects, and is transferred to once more in the other direction.In this process, reverberation can be launched into outside the fiber waveguide 320.

As mentioned above, in the illuminator 300 of a third embodiment in accordance with the invention, can be controlled at the light quantity of transmitting on the length direction of fiber waveguide 320 by the insertion body 322 that uses its both sides all to be configured and be transmitted into outside light quantity.Therefore, can by overcome the Lights section 110 closely and the illumination difference between remote, can on the whole area of fiber waveguide 320, obtain uniform luminance.

Hereinafter, with another embodiment that describes in detail according to the fiber waveguide of the 3rd embodiment.

Figure 11 A is the sectional view of explanation according to the fiber waveguide of another embodiment of Fig. 9 A.And Figure 11 B and 11C are the figure that a surface of inserting body partly is described, are used for another embodiment of the fiber waveguide of key diagram 9A.

Above-mentioned the 3rd embodiment adopts the structure of the processing of curling, and makes in inserting body 322, and having a plurality of configuration sides of existing prismatic 323 is outsides, and the configuration side with a plurality of concave parts 324 is inboard.But technical scheme of the present invention be can't help the fiber waveguide 320 of this structure and is limited.Promptly, shown in Figure 11 A, in other embodiments of the invention, can make fiber waveguide 420 by inserting body 422 insertions and being fixed to outer catheter 426, wherein change to insert body 422 so that the configuration side with a plurality of linear prism 423 as the inboard, and the configuration side with a plurality of concave parts 424 is as skin.

Equally, the concave part 324,424 that forms on a side of inserting body 322,422 is not restricted to this shape and the structure shown in Fig. 9 C.That is, shown in Figure 11 B, in another embodiment of the present invention, can use insertion body 522, and shown in Figure 11 C, can use insertion body 622 with erose groove 624 with circular groove 524.

Equally, in the above-described embodiments, it is varying sized that concave part 324,524,624 forms the ground that is directly proportional with distance apart from the Lights section 112, but alternatively, can change the distribution of concave part 324,524,624, keeps size simultaneously.That is, can by with increase the distribution of concave part 324,524,624 from the distance of the Lights section 112 with being directly proportional, and reduce to have enough light quantities from the Lights section 112 closely with have the relative luminance difference between light source is remote that lacks light quantity.

Hereinafter, for making the situation of insertion body according to an embodiment of the invention, the manufacture method and the device that is used to prepare this film of illumination optical film is described with reference to the accompanying drawings as the illumination optical film.

Figure 12 is the figure of the method and apparatus of explanation illumination optical film according to an embodiment of the invention.

Manufacturing installation according to an embodiment of the invention comprises extruder M, a plurality of arrangement roll (calendar roll) R and figure roll P.In heating and after fusion comprises the material of thermoplastic resin 2 and additive 3, it is sheet that extruder M push thermoplastic resin sheet 4 constantly by mould D.The thermoplastic resin sheet 4 ' spreading that arrangement roll R will extrude from extruder M is the thermoplastic resin film 4 ' with uniform thickness.Figure roll P makes illumination optical film 5 by form figure on thermoplastic resin film 4 ' both sides.

Equally, in order to reduce manufacturing time, can add infrared ray cured dose and/or ultraviolet curing agent alternatively as additive 3.In this case, manufacturing installation of the present invention can comprise a plurality of infrared lamp L1 and a plurality of ultraviolet lamp L2.Infrared lamp L1 is set at and arranges between roll R and the figure roll P, and to thermoplastic resin film 4 ' both sides irradiation infrared ray.Ultraviolet lamp L2 can be set at the rear side of roll P, and to thermoplastic resin film 4 ', i.e. illumination optical film irradiation ultraviolet radiation, wherein thermoplastic resin film 4 ' is formed on the rear side of roll P, and on the both sides of roll P composition.Curing agent and lamp L1, L2 can be with arranged the hardening time of reducing.

Yet, can between arrangement roll R and figure roll P, a plurality of mobile roll G be set, the safety that is used for thermoplastic resin film 4 ' moves.

Make illumination optical film 5 of the present invention by using thermoplastic resin 2.Thermoplastic resin 2 is polymethyl methacrylates for example.

By using known method heating and fusion thermoplastic resin 2, and push constantly by mould D and to be sheet.As mould D, use common T mould.

It is uniform thickness that thermoplastic resin sheet 4 by mould D extruding is arranged roll R spreading, is used for thermoplastic resin film 4 '.As arranging under the situation of roll R spreading by the thermoplastic resin sheet 4 of mould D,, do not limit the number of roll as long as use two or more rolls.In Figure 12, use three rolls.That is, at first, pushed also spreading by first order roll R1 and second order roll R2, and between second order roll R2 and the 3rd arrangement roll R3, advance one one once more and push and spreading by the thermoplastic resin sheet 4 of mould D extruding.

Under situation by heat fusing extruding thermoplastic resin 2, reduce hardening time by using infrared ray cured dose or ultraviolet curing agent, can reduce the manufacturing time of illumination optical film 5 thus.

Using under infrared ray cured dose of the situation as additive, can semi-solid preparation thermoplastic resin film 4 ', be suitable for being used for by after the step of the both sides of using figure roll P processing thermoplastic resin film 4 ', placing infrared lamp L1, and on thermoplastic resin film 4 ' both sides, shine infrared ray, thereby figure is transferred on the thermoplastic resin film 4 '.

Insert the thermoplastic resin film 4 ' of semi-solid preparation by mobile roll G between figure roll P1, P2, the curing figure on figure roll P1, the P2 is transferred to the both sides of thermoplastic resin then.Illumination optical film 5 of the present invention is configured as and makes that a side is linear prism 322 arrays, and forms a plurality of concave parts 324 on another opposite side, shown in Fig. 9 B.Therefore, on the surface of figure roll P1, carve figure, and on the surface of figure roll P2, carve figure corresponding to concave part 324 corresponding to linear prism 322.By rotation figure roll P1, P2, the thermoplastic resin film 4 ' who inserts between figure roll P1, the P2 is moved to the front portion, and the institute's engraving pattern on figure roll P 1, the P2 is transferred to thermoplastic resin film 4 ' both sides.

Using under the situation of ultraviolet curing agent as additive, can solidify thermoplastic resin film 4 ' at the both sides of ultraviolet lamp L2 irradiation ultraviolet radiation by after the step of the both sides of using figure roll P processing thermoplastic resin film 4 '.Therefore completely crued thermoplastic resin film 4 ' forms the illumination optical film 5 of continuous sheet.

The present invention has the advantage that illumination optical film 5 can be fabricated to continuous sheet.

Can completely or partially obtain embodiment by comprising the illuminator of the Lights section, this Lights section comprises light source that generates light and the photoconduction that is connected with the Lights section optics, is used for the light from the Lights section input is transmitted into the outside.Photoconduction comprises the outer catheter of hollow and inserts the insertion body of the hollow of outer catheter, in a plurality of linear structures that are arranged side by side, with the essentially identical direction of the length direction of fiber waveguide on prolong the one side.

In this manual, any for the quoting of " embodiment ", " embodiment ", " exemplary embodiments " etc., be meant to comprise at least one embodiment of the present invention according to the described particular characteristics of embodiment, structure or feature.These statements occur at the diverse location of specification and might not all indicate identical embodiment.In addition, when describing specific characteristic, structure or feature, admit it within those skilled in the art's prediction, influence these characteristics, structure or feature according to other embodiment with reference to any embodiment.

Although embodiment has been described with reference to a plurality of illustrative embodiment, should be understood that a plurality of other improvement and embodiment that those skilled in the art institute can derive drop within the scope of the present disclosure and the principle.Especially, in componentry in the scope of the disclosure and accompanying drawing and claims and/or the structure various changes and modifications can be arranged.Except the changes and improvements of componentry and/or structure, to those skilled in the art, it is conspicuous replacing use.

Claims

1. illuminator comprises:

The Lights section comprises the light source that generates light; And

Fiber waveguide is connected optically with the Lights section;

Wherein, this fiber waveguide comprises:

The outer catheter of hollow; And

Ducted body, it is inserted in the outer catheter of hollow, with the essentially identical direction of the length direction of fiber waveguide on extend, and comprise the outside of configuration and the inboard of configuration, the outside of this configuration has first projection and first groove, and the inboard of this configuration has second groove and second projection

Wherein, described first projection and described second groove with the essentially identical direction of the length direction of described fiber waveguide on extend, and

Wherein each first projection is set to corresponding to each second groove or each second projection.

2. illuminator as claimed in claim 1, wherein, this ducted body is the inner catheter of hollow.

3. illuminator as claimed in claim 1, wherein, this ducted body is the illumination optical film.

4. illuminator as claimed in claim 1, wherein, each has essentially identical shape first projection on the cross section of this ducted body and second groove.

5. illuminator as claimed in claim 1, wherein, each has the isosceles triangle shape first projection on the cross section of this ducted body and second groove.

6. illuminator as claimed in claim 1, wherein, first projection on the cross section of this ducted body has different shapes with second groove.

7. illuminator as claimed in claim 1, wherein, first projection on the cross section of this ducted body and second groove have trapezoidal shape and isosceles triangle shape respectively.

8. illuminator as claimed in claim 1, wherein, the cross section of this ducted body is circular, oval or polygonal shape.

9. illuminator as claimed in claim 1 also comprises speculum, and this speculum is set at the rear side of light source, and is configured to reflect light to fiber waveguide.

10. illuminator as claimed in claim 1 also comprises the reflection cap, this reflection cap end of fiber waveguide that is removably installed, and be configured to reflect light to fiber waveguide.

11. illuminator as claimed in claim 1, wherein each first projection is set to corresponding to each second groove, and each first groove is set to corresponding to each second projection.

12. illuminator as claimed in claim 1, wherein the cross section of first projection and second groove has triangular shaped.