CN100462744C

CN100462744C - Multiple peaks and bias peak multistage type Light-collected optical film and manufacturing method therefor

Info

Publication number: CN100462744C
Application number: CNB2006101089766A
Authority: CN
Inventors: 林清彬
Original assignee: Cayman Islands Shangyagang Technology Co ltd
Current assignee: Cayman Islands Shangyagang Technology Co ltd
Priority date: 2006-07-31
Filing date: 2006-07-31
Publication date: 2009-02-18
Anticipated expiration: 2026-07-31
Also published as: CN101118294A

Abstract

The present invention discloses an optical thin film of multi peak and partial peak multistage type optical collecting, as well as a method to manufacture the multistage type optical thin film. The present invention comprises a transparent basic level, and a plurality of multistage type prism levels arranged connectively on the basic unit. The multistage type prism levels form a plurality of peaks, and each peak assumes a tapering and narrowing structure towards the light direction (for example upwardly), thus being able to enhance the light concentrating effect, and increasing the brightness of the optical thin film and the luminous flux.

Description

Multimodal and bias peak multistage type Light-collected optical thin film and manufacture method thereof

Technical field

The invention relates to a kind of optical thin film and manufacture method thereof, relate in particular to a kind of multimodal and bias peak multistage type Light-collected optical thin film and manufacture method thereof.

Background technology

The present invention was before asked United States Patent (USP) (application case number: the improvement of 11/366,870) " blooming piece of multisection type light collecting and method for making thereof " (to call preceding case in the following text) by the applicant.

The representative diagram of case blooming piece 4 is shown the Fig. 1 as the application before being somebody's turn to do, this prism 6 is located on this base film 5, and 6 adjacent bindings of each prism form the prism array, each prism 6 comprises prism assemblies 62 at least one prism assemblies 61 and down, this time prism assemblies 61 is linked on the base film 5, and this time prism assemblies 61 comprises a pair of prism facets 6a and 6b down, this time prism facets 6a, 6b inclined-plane axis extend upward intersection, make the peak E1 of this time prism assemblies 61 form one first peak angle θ ₁, prism assemblies 62 is linked to down the upper end of prism assemblies 61 on this, and prism assemblies 62 comprises a pair of prism facets 7a, the 7b of going up on this, and prism facets 7a, 7b inclined-plane axis extend upward intersection on this, make prism assemblies 62 peak E2 form one second peak angle θ ₂, and this time prism facets 6a, 6b and last prism facets 7a form an angle α respectively between 7b, make prism assemblies 62 and the following prism assemblies 61 upper and lower one that connect on this, needn't pass through any interface module.

The first peak E1 of case " is hidden " in the inside of the second peak E2 before being somebody's turn to do, and what can influence light harvesting (light concentrating) effect of full wafer optical thin film, and then influence the briliancy and the luminous flux of optical thin film, and present the space that remains to be improved.

Summary of the invention

Purpose of the present invention aims to provide a kind of multimodal and bias peak multistage type Light-collected optical thin film, comprising: a transparent base layer; One first layers of prisms, this first layers of prisms is connected with on this transparent base layer, and at least one second layers of prisms, and described second layers of prisms is one-body molded to be connected with on this first layers of prisms; This first layers of prisms forms first peak by first pair of minute surface clamping; This second layers of prisms forms second peak by second pair of minute surface clamping; Described peak is side, arranged side by side, biasing or local superimposed to present most peaks to strengthen its light harvesting effect on first layers of prisms mutually.

This multisection type layers of prisms forms most peaks (peak), and respectively this peak is convergent and the structure that narrows towards light direction (as upwards), by being to promote its light harvesting (light concentrating) effect, and increases the briliancy and the luminous flux of optical thin film.

The present invention still comprises the method for making this multisection type optical thin film.Comprise the following steps: to provide a transparent base layer; On this transparent base layer, one first layers of prisms is set, this first layers of prisms is connected with on this transparent base layer, and at least one second layers of prisms is provided, and described second layers of prisms is one-body molded to be connected with on this first layers of prisms; Make this first layers of prisms form first peak by first pair of minute surface clamping; This second layers of prisms forms second peak by second pair of minute surface clamping; Described peak is side, arranged side by side, biasing or local superimposed to present most peaks to strengthen its light harvesting effect on first layers of prisms mutually.

Description of drawings

Fig. 1 is the synoptic diagram of preceding case.

Fig. 2 is the first embodiment of the invention synoptic diagram.

Fig. 3 is that the part of Fig. 2 is modified.

Fig. 4 is another desirable entity synoptic diagram of the present invention.

Fig. 5 is another modification example of Fig. 2.

Fig. 6 is an another desirable example schematic of the present invention.

Fig. 7 is the modification example of Fig. 6.

Symbol description:

1 ... basic unit;

2 ... first layers of prisms;

3 ... second layers of prisms;

4 ... the prism layer;

21,22,31,32,41,42 ... prism facets;

23,33,43 ... the peak;

θ 1, and θ 2, and θ 3 ... the angle, peak.

Embodiment

Desirable entity of the present invention can be cooperated appended all graphic and be able to distinct by following instructions.

Consult Fig. 2, optical thin film of the present invention comprises: a transparent base layer 1, one first layers of prisms 2 is connected with on this transparent base layer 1, and one second layers of prisms, 3 one-body molded being connected with on first layers of prisms 2.

This first layers of prisms 2 is formed by a pair of

minute surface

21,22 clampings, gradually pointed one-tenth first peak 23 that makes progress, and this is to pressing from both sides into first peak angle θ between the

minute surface

21,22 ₁, can be made as 104 ° for example, but the present invention is not limited to it.

31,32 clampings form this second layers of prisms 3 to minute surface by another, and upsweep (point) forms second peak 23, and this is to pressing from both sides into second peak angle θ between the

minute surface

31,32 ₂, can be 90 ° or acute angle for example, but the present invention is not limited.

This second peak 33 should be higher than first peak 23, be H1＜H2, except that absorbing from the light of adjacent side incident to reduce the light loss (light loss), also because of (towards light direction) convergent upwards, narrow, more strengthen its light harvesting (light concentrating) effect, by being because of two peaks 23 are arranged, 33 events, make the present invention more excellent, more can increase the briliancy (luminance) and the luminous flux (luminous flux) of optical thin film, the characteristic of gain optical thin film in preceding case.

This transparent base layer 1 can be made from thermoplastics type's resin and comprise: polyethylene terephthalate (PET), polycarbonate (PC) or the like.

This layers of

prisms

2,3 can be made the resin materials such as (comprising UV glue) from photosensitive type or photo-hardening type (photo-curing) or heat curing-type (thermo-curing).

As shown in Figure 3, a minute surface of this first layers of prisms 2 (as numbering 22a) can be made into curved surface, and its radius-of-curvature is advisable more greatly.

Certainly, in the foregoing description, 23, the second peaks 33, first peak can left and right direction inequality, and curved surface also can be right, a left side exchanges, or the two sides is curved surface, the present invention is real not to be limited.

As shown in Figure 4, the present invention is provided with first layers of prisms, 2, the second layers of prisms 3 and prism layers 4 respectively on this basic unit 1.

First layers of prisms 2 forms first peak angle θ by

minute surface

21,22 clampings ₁, its first peak 23 is positioned between second, third layers of prisms 3,4.

Second layers of prisms 3 forms second peak angle θ by

minute surface

31,32 clampings ₂, its second peak 33 is higher than first peak 23.

Prism layer 4 forms the 3rd peak angle θ by minute surface 41,42 clampings ₃, its 3rd peak 43 height can be identical or the similarities and differences in second peak 33.

In most peaks, have at least a peak to be higher than other peak and catch light by side incident to reduce light loss among the present invention to increase it.

First peak 23 just is positioned at second, third layers of prisms 3, among 4 the trench valley, first peak 23 can be positioned at the intersection of the minute surface 41 of the minute surface 32 of second layers of prisms 3 and prism layer 4, also can be from this intersection this first peak 23 of " emerging ", and the present invention is not limited.

And the present invention respectively also can be made into circular arc type peak (rounded peak) and numbers shown in the 23a just like Fig. 5 in this peak.

Among the present invention, this second layers of prisms 3 can be as shown in Figure 6, and its first minute surface 31 is first peak, 23 beginnings from first layers of prisms 2, cooperates second minute surface, 32 upsweeps of second prism 3 to form second peak 33, at this moment first peak angle θ of first prism ₁Second peak angle θ much larger than second prism ₂, that is second peak convergent (narrower) make it have more the light harvesting effect, this and preceding case (shown in the dotted line), convergence, thereby more preceding case greatly has more the light harvesting effect, that is more gained briliancy of the present invention and brightness (brightness).

The present invention also can make curved surface with the minute surface 21a of second layers of prisms 2 as shown in Figure 7, and that is to constitute another embodiment of the present invention.

The angle, peak of relevant the invention described above, the shape at peak, highly, number etc., do not add restriction.Icon only is the usefulness of explanation again, and in fact an optical thin film must be made of most prisms or prism array, except that above-mentioned two-period form, other as three sections multisection types such as (three layers) also can be modified, change application.

Desirable entity of the present invention can be done suitable modification or change in not disobeying under spirit of the present invention and the category, and the present invention is real not to be limited.

The present invention also comprises the method for making above-mentioned multisection type optical thin film.Most peak of the present invention be mutually side by side, a side that another peak is located at side (juxtapositioned) or a peak partially; Or it is superimposed to be part mutually.Second layers of prisms, 3 its bottom surfaces for example shown in Figure 6 can enlarge " building " on the whole minute surface 22 of this first layers of prisms 2, and constitute another desirable embodiment.

Claims

1. a multimodal and bias peak multistage type Light-collected optical thin film, this optical thin film comprises:

One transparent base layer;

One first layers of prisms, this first layers of prisms is connected with on this transparent base layer, and

At least one second layers of prisms, described second layers of prisms is one-body molded to be connected with on this first layers of prisms; This first layers of prisms forms first peak by first pair of minute surface clamping; This second layers of prisms forms second peak by second pair of minute surface clamping; Described peak is side mutually and presents a plurality of peaks to strengthen its light harvesting effect on first layers of prisms.

2. multimodal as claimed in claim 1 and bias peak multistage type Light-collected optical thin film, wherein first peak has angle, first peak, and second peak has angle, second peak.

3. multimodal as claimed in claim 1 and bias peak multistage type Light-collected optical thin film, wherein respectively this peak forms the circular arc type peak.

4. multimodal as claimed in claim 1 and bias peak multistage type Light-collected optical thin film, wherein respectively this minute surface is plane or curved surface.

5. multimodal as claimed in claim 1 and bias peak multistage type Light-collected optical thin film, wherein have at least a peak be towards light direction be gradually tiltedly, convergent to be to increase its light harvesting effect.

6. multimodal as claimed in claim 1 and bias peak multistage type Light-collected optical thin film wherein have at least a peak to be higher than other peak height.

7. a method of making optical thin film as claimed in claim 1 comprises the following steps:

A., one transparent base layer is provided;

B. one-body molded molded or print a plurality of layers of prisms on this transparent base layer, each layers of prisms comprises a peak.