CN105444043A - Fiber transmission eye-protective desk lamp - Google Patents
Fiber transmission eye-protective desk lamp Download PDFInfo
- Publication number
- CN105444043A CN105444043A CN201511033681.2A CN201511033681A CN105444043A CN 105444043 A CN105444043 A CN 105444043A CN 201511033681 A CN201511033681 A CN 201511033681A CN 105444043 A CN105444043 A CN 105444043A
- Authority
- CN
- China
- Prior art keywords
- desk lamp
- fiber
- output
- photoelectric box
- light
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S6/00—Lighting devices intended to be free-standing
- F21S6/002—Table lamps, e.g. for ambient lighting
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/003—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
- F21V9/08—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters for producing coloured light, e.g. monochromatic; for reducing intensity of light
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/40—Details of LED load circuits
- H05B45/44—Details of LED load circuits with an active control inside an LED matrix
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
Abstract
The invention discloses a fiber transmission eye-protective desk lamp which comprises a desk lamp body, and is further provided with a photoelectric box and a fiber, wherein one end of the fiber is connected with an output end of the photoelectric box; the other end of the fiber is mounted on the desk lamp body through a fixing seat; a light source in the photoelectric box is a combination of cold white, warm white and red solid state LED lamps; the fixing seat comprises a fixing plate and a light filter; and the other end of the fiber penetrates through the fixing plate uniformly, and emits irradiation light, and the irradiation light passes through the light filter and then act as application light. The fiber transmission eye-protective desk lamp is simple in overall structure; the photoelectric box is separated from the desk lamp body, and the fiber is adopted for light source transmission, so that the safety is high; with the adoption of fiber light transmission, optical-electric separation is realized; a part, in contact with a human body, of the fiber transmission eye-protective desk lamp is electrically neutral, and has no electromagnetic radiation; a radiation source is separated from a user end, so that no electromagnetic radiation exists within the use range; and the fiber transmission eye-protective desk lamp is particularly suitable for special populations such as children and pregnant women, and has no blue light harm.
Description
Technical field
The present invention relates to field of lighting devices, be specifically related to a kind of fiber optic conduction eye-protecting desk lamp.
Background technology
Existing desk lamp many employings energy-saving bulb is as light source, and its brightness regulation is limited in scope, and colour temperature is non-adjustable; Colour rendering index generally only has 80, is difficult to close to sunshine, larger to human eye injury; Also have and adopt LED as light source, but no matter be energy-saving bulb or LED, its use side is all charged, there is Danger Electric shock risk, electricity, light source and user's distance are very near, cannot avoid electromagnetic radiation chronically, are especially not suitable for the special population such as children, pregnant woman and use.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, propose a kind of structure simple, easy to operate, be separated with light source by power supply, and light-source brightness adjustable range is wide, spatial distribution is fiber optic conduction eye-protecting desk lamp more reasonably, and concrete technical scheme is as follows:
A kind of fiber optic conduction eye-protecting desk lamp, comprise table lamp body (1), also be provided with photoelectric box (2) and optical fiber (3), one end of this optical fiber (3) is connected with the output of described photoelectric box (2), and the other end is arranged in described table lamp body (1) by holder;
Light source adopts cold white, warm white and ruddiness three kinds of solid state LED lamps to combine in wherein said photoelectric box (2);
Described holder comprises fixed head (4) and optical filter (5), the other end of described optical fiber (3) is uniformly across described fixed head (4), and irradiation light conduct after described optical filter (5) that the other end of this optical fiber (3) sends should be used up.
The present invention realizes like this, the light that three kinds of solid state LED send conducts through optical fiber (3), conduct application optical illumination after mating plate (5) filtering blue light after filtration, cold white, warm white and ruddiness three kinds of light after mixed light more close to sunshine, spatial distribution is wide, colour temperature is controlled, colour rendering reaches as high as 96.5, not easily cause visual fatigue, visual performance demand can either be met and also can meet the non-vision functional requirements such as Physiological Psychology.
To better implement the present invention, may further be:
(4) evenly offer fixing hole with described fixed head, and described optical fiber (3) is by this fixing hole through fixed head (4), and the optical fiber luminescent angle in each fixing hole is 30 four to three ten six degree.The setting of fixing hole makes its optical fiber uniform in light emission, the lighting angle of 30 four to three ten six degree, makes its bright dipping just can mix mixed light in 20 to two ten five centimeters, better meets the needs of illumination.
Described optical fiber (3) is fiber optic fibers, plastic, can filtering blue light further, reduces blue light to the injury of human eye.
Control circuit in described photoelectric box (2) is provided with MCU controller, the power end of this MCU controller is connected with the output of filtration module, the input of this filtration module is connected with rectification module, and the output of described filtration module is also connected with the positive power source terminal of light source in described photoelectric box (2);
The input of described MCU controller is connected with adjuster, and output group is connected with comparison circuit, and the output of this comparison circuit is connected with the negative power end of light source in described photoelectric box (2).Overall structure is simple, controls accurate, can realize, to the adjustment of the luminous light and shade of desk lamp, meeting different applied environments by adjuster.
Described comparison circuit is provided with operational amplifier U1 and operational amplifier U2, normal phase input end ground connection after resistance R4 of this operational amplifier U2, inverting input is connected with the mark voltage output end of described MCU controller, output one tunnel is connected with normal phase input end through resistance R5, another road is connected with the normal phase input end of described operational amplifier U1, the inverting input of this operational amplifier U1 is connected with the Duty ratio control output of described MCU controller, output is connected with the grid of metal-oxide-semiconductor, between the normal phase input end and output point of described operational amplifier U1, also cross-over connection has resistance R2, the source electrode of described metal-oxide-semiconductor is connected with the negative power end of light source in described photoelectric box (2), and drain ground connection after resistance R3.Comparison circuit is simple, and achieve no matter in steady operation or adjustment process, solid state light emitter can be accomplished without stroboscopic operation, better protects human eye.
Beneficial effect of the present invention is: 1, overall structure is simple, photoelectric box is separated with table lamp body, and adopt optical fiber to carry out light source conduction, security is high, adopt optical fiber light-guiding, realize photodetachment, not charged with human contact position, electromagnetic-radiation-free, radiation source is separated with use side, electromagnetic-radiation-free in the scope of application, is especially applicable to the demand of the special population such as children, pregnant woman; 2, by plastic optical fiber and optical filter filter blue light content, control its spatial distribution, make it control, in the ratio useful to human body, to endanger without blue light; 3, brightness, colour temperature can regulate arbitrarily according to end user, environment for use simultaneously, guarantee ocular comfort, reach the function of eyeshield; 4, colour rendering index high (>=90), by the distribution of Different Light allotment optimal spectrum, outputting high quality illumination light, wherein low colour temperature shelves (2900K) colour rendering index is up to 96.5, and color tolerance is little, and photochromic uniformity is better.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation figure of fixed head in the present invention;
Fig. 3 is the structural representation figure of fixed head and optical filter in the present invention;
Fig. 4 is the structured flowchart of control circuit in the present invention;
Fig. 5 is the circuit diagram of comparison circuit in the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, preferred embodiment of the present invention is described in detail, can be easier to make advantages and features of the invention be readily appreciated by one skilled in the art, thus more explicit defining is made to protection scope of the present invention.
As shown in Figure 1, Figure 2 and Figure 3: a kind of fiber optic conduction eye-protecting desk lamp, comprise table lamp body 1, also be provided with photoelectric box 2 and fiber optic fibers, plastic 3, the light source being provided with control circuit and adopting cold white, warm white and ruddiness three kinds of solid state LED lamps to combine in photoelectric box 2, wherein one end of optical fiber 3 is connected with light source by collimation lotus root assembly system;
Fixed head 4 is provided with in table lamp body 1,108 fixing circular holes are set in this fixed head 4, the outer face of fixed head 4 is snapped with optical filter 5, the other end of optical fiber 3 is uniformly across the fixing circular hole in fixed head 4, should using up of producing in light source effectively can reduce the blue light in should using up through optical fiber 3 itself and optical filter 5, avoids human eye to come to harm; Be 36 degree in each fixing circular hole optical fiber luminescent angle, make irradiation light that in its each circular hole, optical fiber sends just can uniform mixed light from fixed head 4 two ten five cm, make its access expansion light more, the demand of eyeshield of closing illumination.
As shown in Figure 4 and Figure 5: the control circuit in photoelectric box 2 is provided with MCU controller, this MCU controller is single-chip microcomputer, be connected with the output of filtration module at the power end of MCU controller, the input of this filtration module is connected with rectification module, and the output of described filtration module is also connected with the positive power source terminal of light source in described photoelectric box 2; The input of described MCU controller is connected with adjuster, and output group is connected with comparison circuit, and the output that this comparison circuit connects is connected with the negative power end of light source in described photoelectric box 2.Described comparison circuit is provided with operational amplifier U1 and operational amplifier U2, normal phase input end ground connection after resistance R4 of this operational amplifier U2, inverting input is connected with the mark voltage output end of described MCU controller, output one tunnel is connected with normal phase input end through resistance R5, another road is connected with the normal phase input end of described operational amplifier U1, the inverting input of this operational amplifier U1 is connected with the Duty ratio control output of described MCU controller, output is connected with the grid of metal-oxide-semiconductor, between the normal phase input end and output point of described operational amplifier U1, also cross-over connection has resistance R2, the source electrode of described metal-oxide-semiconductor is connected with the negative power end of light source in described photoelectric box 2, and drain ground connection after resistance R3.220V AC-input voltage through rectification, be filtered into direct voltage output, for the circuit such as single-chip microcomputer, comparison circuit provides direct-current working volts.There is provided a reference voltage V ref for comparison circuit during single-chip microcomputer work, the size of this value determines the size of output current, just can the size of regulation output electric current by the value of key change Vref.Single-chip microcomputer exports the pwm signal of a more than 1MHZ, and it and Vref, feedback voltage acting in conjunction, on comparison circuit, control the on off state of metal-oxide-semiconductor Q2 in real time, thus reaches the object that constant current exports.Because Vref is an analog signal, magnitude of voltage is continuous print, and the frequency of PWM is at more than 1M, frequency is higher, and Current adjustment is sensitiveer, and the electric current of this circuit can accomplish continuously adjustabe, no matter in steady operation or adjustment process, solid state light emitter can be accomplished without stroboscopic operation.
Claims (5)
1. a fiber optic conduction eye-protecting desk lamp, comprise table lamp body (1), it is characterized in that: be also provided with photoelectric box (2) and optical fiber (3), one end of this optical fiber (3) is connected with the output of described photoelectric box (2), and the other end is arranged in described table lamp body (1) by holder;
Light source adopts cold white, warm white and ruddiness three kinds of solid state LED lamps to combine in wherein said photoelectric box (2);
Described holder comprises fixed head (4) and optical filter (5), the other end of described optical fiber (3) is uniformly across described fixed head (4), and irradiation light conduct after described optical filter (5) that the other end of this optical fiber (3) sends should be used up.
2. fiber optic conduction eye-protecting desk lamp according to claim 1, it is characterized in that: (4) evenly offer fixing hole with described fixed head, described optical fiber (3) is by this fixing hole through fixed head (4), and the optical fiber luminescent angle in each fixing hole is 30 four to three ten six degree.
3. fiber optic conduction eye-protecting desk lamp according to claims 1 or 2, is characterized in that: described optical fiber (3) is fiber optic fibers, plastic.
4. fiber optic conduction eye-protecting desk lamp according to claims 1 or 2, it is characterized in that: the control circuit in described photoelectric box (2) is provided with MCU controller, the power end of this MCU controller is connected with the output of filtration module, the input of this filtration module is connected with rectification module, and the output of described filtration module is also connected with the positive power source terminal of light source in described photoelectric box (2);
The input of described MCU controller is connected with adjuster, and output group is connected with comparison circuit, and the output of this comparison circuit is connected with the negative power end of light source in described photoelectric box (2).
5. fiber optic conduction eye-protecting desk lamp according to claim 4, it is characterized in that: described comparison circuit is provided with operational amplifier U1 and operational amplifier U2, normal phase input end ground connection after resistance R4 of this operational amplifier U2, inverting input is connected with the mark voltage output end of described MCU controller, output one tunnel is connected with normal phase input end through resistance R5, another road is connected with the normal phase input end of described operational amplifier U1, the inverting input of this operational amplifier U1 is connected with the Duty ratio control output of described MCU controller, output is connected with the grid of metal-oxide-semiconductor, between the normal phase input end and output point of described operational amplifier U1, also cross-over connection has resistance R2, the source electrode of described metal-oxide-semiconductor is connected with the negative power end of light source in described photoelectric box (2), and drain ground connection after resistance R3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511033681.2A CN105444043B (en) | 2015-12-31 | 2015-12-31 | Fiber optic conduction eye-protecting desk lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511033681.2A CN105444043B (en) | 2015-12-31 | 2015-12-31 | Fiber optic conduction eye-protecting desk lamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105444043A true CN105444043A (en) | 2016-03-30 |
| CN105444043B CN105444043B (en) | 2019-06-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511033681.2A Expired - Fee Related CN105444043B (en) | 2015-12-31 | 2015-12-31 | Fiber optic conduction eye-protecting desk lamp |
Country Status (1)
| Country | Link |
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| CN (1) | CN105444043B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106523978A (en) * | 2016-12-31 | 2017-03-22 | 重庆市光利医疗科技有限公司 | Optical fiber illumination lamp |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106523978A (en) * | 2016-12-31 | 2017-03-22 | 重庆市光利医疗科技有限公司 | Optical fiber illumination lamp |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN105444043B (en) | 2019-06-28 |
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