CN105444043B - Fiber optic conduction eye-protecting desk lamp - Google Patents
Fiber optic conduction eye-protecting desk lamp Download PDFInfo
- Publication number
- CN105444043B CN105444043B CN201511033681.2A CN201511033681A CN105444043B CN 105444043 B CN105444043 B CN 105444043B CN 201511033681 A CN201511033681 A CN 201511033681A CN 105444043 B CN105444043 B CN 105444043B
- Authority
- CN
- China
- Prior art keywords
- optical fiber
- connect
- output end
- light
- photoelectric box
- 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.)
- Expired - Fee Related
Links
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
-
- 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
-
- 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]
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
A kind of fiber optic conduction eye-protecting desk lamp, including table lamp body, are additionally provided with photoelectric box and optical fiber, and one end of the optical fiber is connect with the output end of the photoelectric box, and the other end is mounted in the table lamp body by fixing seat；Wherein light source is composed using three kinds of cool white, warm white and feux rouges solid state LED lamps in the photoelectric box；The fixing seat includes fixed plate and optical filter, and the other end of the optical fiber is uniformly across the fixed plate, and the irradiation light that the other end of the optical fiber issues is after the optical filter as using light.Overall structure of the present invention is simple, photoelectric box and table lamp body are separated, and light source conduction is carried out using optical fiber, it is highly-safe, using optical fiber light-guiding, realize photodetachment, electromagnetic-radiation-free not charged with human contact position, it radiation source and is separated using end, the electromagnetic-radiation-free in use scope is especially suitable for the demand of the special populations such as children, pregnant woman, no blue light harm.
Description
Technical field
The present invention relates to field of lighting devices, and in particular to a kind of fiber optic conduction eye-protecting desk lamp.
Background technique
Existing desk lamp mostly uses energy-saving bulb as light source, and brightness regulation is limited in scope, and colour temperature is non-adjustable；Colour developing
Index generally only has 80, it is difficult to close to sunlight, injure to human eye larger；Also have using LED as light source, but either save
Can light bulb or LED light, charged using end, there is Danger Electric shock risk, electricity, light source and user not can avoid apart from close
Chronically electromagnetic radiation is not particularly suitable for the use of the special populations such as children, pregnant woman.
Summary of the invention
It is easy to operate in view of the deficiencies of the prior art, the present invention proposes a kind of structure is simple, power supply and light source are divided
From, and light-source brightness adjustable range is wide, the more reasonable fiber optic conduction eye-protecting desk lamp of spatial distribution, and specific technical solution is as follows:
A kind of fiber optic conduction eye-protecting desk lamp, including table lamp body (1), are additionally provided with photoelectric box (2) and optical fiber (3), the light
The one end of fine (3) is connect with the output end of the photoelectric box (2), and the other end is mounted on the table lamp body (1) by fixing seat
On；
Wherein light source is composed using three kinds of cool white, warm white and feux rouges solid state LED lamps in the photoelectric box (2)；
The fixing seat includes fixed plate (4) and optical filter (5), and the other end of the optical fiber (3) is uniformly across described solid
Fixed board (4), the irradiation light that the other end of the optical fiber (3) issues is after the optical filter (5) as using light；
Fixation hole is uniformly provided on the fixed plate (4), the optical fiber (3) passes through fixed plate (4) by the fixation hole,
And the optical fiber luminescent angle in each fixation hole is 30 four to three ten six degree.It is equal that the setting of fixation hole makes its optical fiber go out light
Even, 30 four to three ten six degree of light emitting angle, so that it is gone out light just can be uniformly mixed light mixing in 20 to two ten five centimeters, more
The needs of good satisfaction illumination.
The invention is realized in this way the light that three kinds of solid state LEDs issue is conducted by optical fiber (3), filtered by optical filter (5)
Except, as optical illumination is applied, three kinds of cool white, warm white and feux rouges light are more nearly sunlight, spatial distribution after light mixing after blue light
Wide, colour temperature is controllable, colour rendering reaches as high as 96.5, is not easy to cause visual fatigue, can either meet visual performance demand can also expire
The non-vision functional requirement such as sufficient Physiological Psychology.
To better implement the present invention, it may further be:
The optical fiber (3) is fiber optic fibers, plastic, can further filter out blue light, reduces injury of the blue light to human eye.
Control circuit in the photoelectric box (2) is provided with MCU controller, the power end and filtering mould of the MCU controller
The output end of block connects, and the input terminal of the filter module is connect with rectification module, the output end of the filter module also with it is described
The positive power source terminal connection of light source in photoelectric box (2)；
The input terminal of the MCU controller is connected with adjuster, and output end group is connect with comparison circuit, which connects
The output end connect is connect with the negative power end of light source in the photoelectric box (2).Overall structure is simple, and control is accurate, passes through adjusting
Device, which can be realized, shines the adjusting of light and shade to desk lamp, meets different application environments.
The comparison circuit is provided with operational amplifier U1 and operational amplifier U2, the positive input of operational amplifier U2
End is grounded after resistance R4, and inverting input terminal is connect with the mark voltage output end Vref of the MCU controller, and output end is all the way
It is connect through resistance R5 with normal phase input end, another way is connect with the normal phase input end of the operational amplifier U1, the operation amplifier
The inverting input terminal of device U1 is connect with the duty ratio control output end PWM of the MCU controller, output end PWM and metal-oxide-semiconductor Q2's
Grid connection, also bridging has resistance R2 between the normal phase input end and output point of the operational amplifier U1；The metal-oxide-semiconductor Q2's
Source electrode is connect with the negative power end of light source in the photoelectric box (2), and drain electrode is grounded after resistance R3, and MCU controller exports one
The pwm signal of 1MHZ or more controls the switch of metal-oxide-semiconductor Q2 with Vref, feedback voltage collective effect on comparison circuit in real time
State, to achieve the purpose that constant current exports.
.Comparison circuit is simple, realizes no matter in steady operation or adjustment process, solid state light emitter can accomplish nothing
Stroboscopic operation preferably protects human eye.
The invention has the benefit that 1, overall structure is simple, photoelectric box and table lamp body are separated, and use optical fiber
Light source conduction is carried out, it is highly-safe, using optical fiber light-guiding, realize photodetachment, no electromagnetism spoke not charged with human contact position
It penetrates, radiation source and is separated using end, the electromagnetic-radiation-free in use scope, be especially suitable for the need of the special populations such as children, pregnant woman
It asks；2, by plastic optical fiber and optical filter filter blue light content, its spatial distribution is controlled, makes its control in the ratio beneficial to human body
Example, no blue light harm；3, brightness, colour temperature can be adjusted arbitrarily according to user, use environment simultaneously, it is ensured that ocular comfort reaches
The function of eyeshield；4, colour rendering index is high (>=90), deploys optimal spectrum by different light sources and is distributed, outputting high quality illumination light,
Wherein low color temperature shelves (2900K) colour rendering index is up to 96.5, and color tolerance is small, and photochromic consistency is preferable.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the structural schematic diagram figure of fixed plate in the present invention；
Fig. 3 is the structural schematic diagram figure of fixed plate and optical filter in the present invention；
Fig. 4 is the structural block diagram of control circuit in the present invention；
Fig. 5 is the circuit diagram of comparison circuit in the present invention.
Specific embodiment
The preferred embodiments of the present invention will be described in detail with reference to the accompanying drawing, so that advantages and features of the invention energy
It is easier to be readily appreciated by one skilled in the art, so as to make a clearer definition of the 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, including table lamp body 1 are additionally provided with photoelectric box 2
With fiber optic fibers, plastic 3, control circuit is provided in photoelectric box 2 and closed using three kinds of cool white, warm white and feux rouges solid state LED lamp groups and
At light source, wherein one end of optical fiber 3 by collimate coupled system connect with light source；
It is provided with fixed plate 4 in table lamp body 1,108 fixed circular holes are set in the fixed plate 4, in fixed plate 4
It is snapped with optical filter 5 on outer end face, uniformly across the fixation circular hole in fixed plate 4, what is generated in light source is answered for the other end of optical fiber 3
Using up can effectively reduce by optical fiber 3 itself and optical filter 5 using the blue light in light, and human eye is avoided to come to harm；Each solid
Determining circular hole optical fiber luminescent angle is 36 degree, makes the irradiation light that optical fiber is issued in each of which circular hole from fixed plate 4 two ten
Five centimetres or so can uniform mixed light, so that it is more nearly natural light, meet eyeshield illumination the needs of.
As shown in Figure 4 and Figure 5: the control circuit in photoelectric box 2 is provided with MCU controller, which is monolithic
Machine is connected in the power end of MCU controller and the output end of filter module, and the input terminal and rectification module of the filter module connect
It connects, the output end of the filter module is also connect with the positive power source terminal of light source in the photoelectric box 2；The MCU controller it is defeated
Enter end and be connected with adjuster, output end group is connect with comparison circuit, in the output end and the photoelectric box 2 of comparison circuit connection
The negative power end of light source connects.The comparison circuit is provided with operational amplifier U1 and operational amplifier U2, the operational amplifier
The normal phase input end of U2 is grounded after resistance R4, and inverting input terminal is connect with the mark voltage output end of the MCU controller, defeated
Outlet is connect through resistance R5 with normal phase input end all the way, and another way is connect with the normal phase input end of the operational amplifier U1, should
The inverting input terminal of operational amplifier U1 is connect with the duty ratio control output end of the MCU controller, output end and metal-oxide-semiconductor Q2
Grid connection, between the normal phase input end and output point of the operational amplifier U1 also bridging have resistance R2；The metal-oxide-semiconductor Q2
Source electrode connect with the negative power end of light source in the photoelectric box 2, drain electrode be grounded after resistance R3.220V AC-input voltage warp
It rectifies, be filtered into direct voltage output, provide direct-current working volts for circuits such as single-chip microcontroller, comparison circuits.When single-chip microcontroller works
A reference voltage Vref is provided for comparison circuit, the size of the value determines the size of output electric current, passes through key change
The value of Vref can adjust the size of output electric current.Single-chip microcontroller exports the pwm signal of a 1MHZ or more, it and Vref, anti-
Feedthrough voltage collective effect controls the switch state of metal-oxide-semiconductor Q2 on comparison circuit in real time, to reach constant current output
Purpose.Since Vref is an analog signal, voltage value is continuous, and the frequency of PWM, in 1M or more, frequency is higher, electricity
Stream adjusting is sensitiveer, and the electric current of the circuit can be accomplished to be continuously adjusted, no matter in steady operation or adjustment process, solid-state light
Source can accomplish no stroboscopic operation.
Claims (2)
1. a kind of fiber optic conduction eye-protecting desk lamp, including table lamp body (1), it is characterised in that: be additionally provided with photoelectric box (2) and optical fiber
(3), one end of the optical fiber (3) is connect with the output end of the photoelectric box (2), and the other end is mounted on the desk lamp by fixing seat
On ontology (1)；
Wherein light source is composed using three kinds of cool white, warm white and feux rouges solid state LED lamps in the photoelectric box (2)；
The fixing seat includes fixed plate (4) and optical filter (5), and the other end of the optical fiber (3) is uniformly across the fixed plate
(4), the irradiation light that the other end of the optical fiber (3) issues is after the optical filter (5) as using light；
Fixation hole is uniformly provided on the fixed plate (4), the optical fiber (3) passes through fixed plate (4) by the fixation hole, and
Optical fiber luminescent angle in each fixation hole is 30 four to three ten six degree；
Control circuit in the photoelectric box (2) is provided with MCU controller, the power end of the MCU controller and filter module
Output end connection, the input terminal of the filter module connect with rectification module, the output end of the filter module also with the photoelectricity
The positive power source terminal connection of light source in case (2)；
The input terminal of the MCU controller is connected with adjuster, and output end group is connect with comparison circuit, comparison circuit connection
Output end is connect with the negative power end of light source in the photoelectric box (2)；
The comparison circuit is provided with operational amplifier U1 and operational amplifier U2, the normal phase input end warp of operational amplifier U2
It is grounded after resistance R4, inverting input terminal is connect with the mark voltage output end Vref of the MCU controller, and output end is all the way through electricity
Resistance R5 is connect with normal phase input end, and another way is connect with the normal phase input end of the operational amplifier U1, operational amplifier U1
Inverting input terminal connect with the duty ratio control output end PWM of the MCU controller, the grid of output end PWM and metal-oxide-semiconductor Q2
Connection, also bridging has resistance R2 between the normal phase input end and output point of the operational amplifier U1；The source electrode of the metal-oxide-semiconductor Q2
It is connect with the negative power end of light source in the photoelectric box (2), drain electrode is grounded after resistance R3, and MCU controller exports a 1MHZ
Above pwm signal controls the switch shape of metal-oxide-semiconductor Q2 with Vref, feedback voltage collective effect on comparison circuit in real time
State, to achieve the purpose that constant current exports.
2. fiber optic conduction eye-protecting desk lamp according to claim 1, it is characterised in that: the optical fiber (3) is fiber optic fibers, plastic.
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 CN105444043A (en) | 2016-03-30 |
| CN105444043B true CN105444043B (en) | 2019-06-28 |
Family
ID=55554547
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 |
|---|---|
| CN (1) | CN105444043B (en) |
Families Citing this family (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 |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1217683B (en) * | 1988-05-20 | 1990-03-30 | Artemide Spa | ARTIFICIAL LIGHTING EQUIPMENT WITH ARTICULATED ARMS |
| CN2235550Y (en) * | 1995-04-13 | 1996-09-18 | 肖德锋 | Optical fibre lighting lamp |
| DE19648620C2 (en) * | 1996-11-12 | 1998-10-29 | Mannesmann Ag | Lighting system for illuminating an adjustable lighting field |
| JP2000276902A (en) * | 1999-03-29 | 2000-10-06 | Hikariya Lighting:Kk | Luminaire and surface inspecting method using it |
| CN2401774Y (en) * | 1999-10-29 | 2000-10-18 | 上海侨龙光艺工业有限公司 | Optical fiber seachlight lamp |
| CN2504485Y (en) * | 2001-09-03 | 2002-08-07 | 葛世潮 | LED desk lamp |
| CN101226342A (en) * | 2008-01-29 | 2008-07-23 | 芯硕半导体（中国）有限公司 | Programmed control slow-starting high stabilization great current drive device |
| CN201696962U (en) * | 2010-03-10 | 2011-01-05 | 中强光电股份有限公司 | Light source device |
| CN102278621A (en) * | 2011-04-22 | 2011-12-14 | 深圳市瑞丰光电子股份有限公司 | White light emitting diode (LED) module with adjustable color temperature, illumination equipment and manufacturing method |
| CN202679720U (en) * | 2012-05-22 | 2013-01-16 | 广州雄智照明实业有限公司 | LED lamp based on high color rendering index and possessing adjustable brightness and color temperature |
| CN102740572B (en) * | 2012-07-18 | 2015-09-30 | 广州凯盛电子科技有限公司 | Driving power control circuit |
| CN202791536U (en) * | 2012-09-29 | 2013-03-13 | 福州高意光学有限公司 | Light-emitting diode (LED) optical fiber light source |
| CN204062644U (en) * | 2014-09-30 | 2014-12-31 | 东莞华明灯具有限公司 | A kind of light fixture by optical fiber bright dipping |
| CN204494183U (en) * | 2015-03-25 | 2015-07-22 | 李慧贞 | Without blue light without the myopic-preventing eye-protecting desk lamp of stroboscopic |
| CN204922644U (en) * | 2015-09-10 | 2015-12-30 | 何顺伦 | Eyeshield desk lamp |
| CN205244945U (en) * | 2015-12-31 | 2016-05-18 | 重庆市光遥光电节能科技有限公司 | Novel fiber optic conductor eyeshield desk lamp |
-
2015
- 2015-12-31 CN CN201511033681.2A patent/CN105444043B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN105444043A (en) | 2016-03-30 |
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Granted publication date: 20190628 Termination date: 20191231 |