CN109958925B - Area light source - Google Patents
Area light source Download PDFInfo
- Publication number
- CN109958925B CN109958925B CN201910118519.2A CN201910118519A CN109958925B CN 109958925 B CN109958925 B CN 109958925B CN 201910118519 A CN201910118519 A CN 201910118519A CN 109958925 B CN109958925 B CN 109958925B
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- Prior art keywords
- yellow fluorescent
- fluorescent film
- base
- light source
- rod body
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S8/00—Lighting devices intended for fixed installation
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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
- F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
- F21V9/30—Elements containing photoluminescent material distinct from or spaced from the light source
- F21V9/32—Elements containing photoluminescent material distinct from or spaced from the light source characterised by the arrangement of the photoluminescent material
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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
- F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
- F21V9/40—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters with provision for controlling spectral properties, e.g. colour, or intensity
Abstract
The invention discloses a surface light source which comprises a base, a lampshade and a white luminous body arranged in the lampshade, wherein a yellow fluorescent film is arranged on the inner side of the lampshade, the yellow fluorescent film comprises 0.1-1.5% of yellow fluorescent powder, 10-20% of diffusion master batch and 78.5-89.9% of transparent engineering plastic particles in parts by weight, and the particle size of the yellow fluorescent powder is less than or equal to 4 microns. The area light source is low in photobiological hazard value (low in blue light radiation intensity and low in retina thermal hazard value), low in glare value and good in visual comfort.
Description
Technical Field
The present invention relates to a lighting device, and more particularly, to a surface light source.
Background
With the development of science and technology, the lighting lamps used by people in daily life mainly develop incandescent lamps into three-primary-color fluorescent lamps and LED lighting lamps, wherein:
an incandescent lamp: because the incandescent lamp is powered by the metal tungsten wire to emit light, the linear light source emits light mainly with yellow light (low color temperature), and the spectrum combination of the linear light source consists of red, green and blue components. When the luminous flux reaches a certain value, the light-emitting area of the linear light source is small, which causes a serious glare phenomenon.
Three primary color fluorescent lamp: the mercury vapor of the lamp tube is excited by the ultraviolet light high voltage of the 220v alternating current rectifier so as to excite the three primary colors of fluorescent powder (red, green and blue) coated on the inner wall of the lamp tube to form a white light source, the spectrum combination of the white light source is composed of red, green and blue components, but the white light source has large light radiation hazard, severe glare, large photobiological hazard and high blue light radiation.
The LED lighting lamp excites a blue light chip to emit blue light through a constant current driving power supply, and then the blue light is utilized to excite LED yellow fluorescent powder coated on the blue light chip to emit yellow light, the blue light is excited to form a white light source, the spectrum combination of the white light source is composed of red, green and blue, but due to the blue light excitation principle, the phenomenon of rich blue light is easily generated, and the area of the LED chip is smaller to generate point light source to emit light, so the glare phenomenon is more serious.
By understanding the light emitting principle of the incandescent lamp, the tricolor fluorescent lamp and the LED lighting lamp, the phenomena of glare and overhigh photobiohazard value are obviously overcome.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the area light source which is low in photobiological hazard value (low in blue light radiation intensity and low in retina thermal hazard value), low in glare value and good in visual comfort.
In order to achieve the purpose, the invention provides the following technical scheme: a surface light source comprises a base, a lampshade and a white luminous body arranged in the lampshade, wherein a yellow fluorescent film is arranged on the inner side of the lampshade, the yellow fluorescent film comprises 0.1-1.5% of yellow fluorescent powder, 10-20% of diffusion master batches and 78.5-89.9% of transparent engineering plastic granules according to parts by weight, the particle size of the yellow fluorescent powder is less than or equal to 4 microns, an installation groove is formed in the lampshade, the yellow fluorescent film is arranged in the installation groove and provided with a plurality of pieces, a plurality of winding rollers are rotatably arranged on the base, one end of the yellow fluorescent film is fixed on the winding rollers, the winding rollers extend out of the base, a sliding rod is arranged at the other end of the yellow fluorescent film opposite to the winding rollers, a sliding groove for the sliding rod to slide transversely is formed in the base, the sliding rod extends out of the sliding groove, a clamping block is slidably sleeved on the sliding rod outside the base, the yellow fluorescent film unreels the back, be equipped with the draw-in groove with the fixture block joint on the lateral wall of base, the slide bar includes body of rod one and body of rod two, be equipped with the slot on the body of rod two, body of rod one joint is in the slot, be equipped with the through-hole that supplies yellow fluorescent film to pass on the body of rod one, yellow fluorescent film passes through-hole and body of rod two fixed connection, be equipped with on the through-hole inner wall with the rubber circle of yellow fluorescent film laminating, behind the fixture block locking be equipped with the breach that supplies body of rod one to break away from.
By adopting the technical scheme, when the white light source passes through the yellow fluorescent film, the blue light in the white light partially excites the nanoscale yellow fluorescent powder in the yellow fluorescent film to emit yellow light, the yellow fluorescent powder is combined with partial blue light in the white light source to form white light, and then the white light and the white light source form composite white light; each person has different visual senses, and by adopting the technical scheme, the intensity of blue light can be changed by changing the number of the yellow fluorescent films in the lampshade under the condition of not changing the power of the white luminous body, so that the requirements of different persons can be met, and the application range of the lamp can be expanded; the winding and unwinding of the yellow fluorescent film are controlled by rotating the winding roller, so that the number of the yellow fluorescent films is more convenient to adjust, the lamp does not need to be disassembled and assembled, in addition, impurities can be reduced to enter the lamp, and the lighting effect is improved; the winding and unwinding of the yellow fluorescent film are controlled by rotating the winding roller, on one hand, the winding and unwinding are not rapid enough, on the other hand, the yellow fluorescent film is easy to wrinkle when being unwound, on the other hand, the winding and unwinding of the yellow fluorescent film are controlled by moving the sliding rod by arranging the sliding rod at the end part of the yellow fluorescent film opposite to the other end of the winding roller, so that the winding and unwinding of the yellow fluorescent film are rapid, and the sliding rod plays a guiding role on the yellow fluorescent film, so that the yellow fluorescent film is not easy to wrinkle; the clamping block is clamped into the clamping groove to fix the sliding rod, so that the yellow fluorescent film is not easy to retract in the normal use process; when having impurity on discovering yellow fluorescent film, through adopting above-mentioned technical scheme, be in under the state of tightening at yellow fluorescent film, can clean yellow fluorescent film through the back and forth movement body of rod one to just need not dismantle the effect that lamps and lanterns can realize the edulcoration, it is more convenient simple to operate.
The invention is further configured to: the sliding rod outside the base is provided with external threads, and the clamping block is provided with internal threads matched with the external threads on the sliding rod.
Through adopting above-mentioned technical scheme, the setting of internal thread and external screw thread makes the fixture block also can obtain a fixed messenger slide bar more stable at the in-process of usual use fixedly in the axial direction.
The invention is further configured to: the winding roller is sleeved with a volute spiral spring, one end of the volute spiral spring is fixed on the winding roller, and the other end of the volute spiral spring is fixed on the base.
Through adopting above-mentioned technical scheme, the rolling that can make things convenient for yellow fluorescent film on the one hand of setting up of spiral spring, on the other hand can make yellow fluorescent film be in the state of tightening always because spiral spring's effect under the state that yellow fluorescent film unreeled, and the printing opacity is more even.
The invention is further configured to: be equipped with the sealing strip in the spout, one side on long limit of sealing strip is fixed with the spout inner wall.
Through adopting above-mentioned technical scheme, the setting of sealing strip can be sealed the spout, makes in the difficult entering into lamps and lanterns of external impurity.
The invention is further configured to: the four winding rollers are respectively distributed on the periphery of the base.
Through adopting above-mentioned technical scheme, the wind-up roll distributes around the base, can reduce the influence between the wind-up roll, makes whole lamps and lanterns compacter.
In conclusion, the invention has the following beneficial effects: the area light source is low in photobiological hazard value (low in blue light radiation intensity and low in retina thermal hazard value), low in glare value and good in visual comfort; the intensity of the blue light of the lamp can be adjusted at any time according to the visual demands of different people, and the adjustment is very convenient.
Drawings
FIG. 1 is a top view of the present embodiment;
FIG. 2 is a side view of the present embodiment;
FIG. 3 is a cross-sectional view A-A of FIG. 1;
FIG. 4 is an enlarged view of B in FIG. 2;
fig. 5 is an enlarged view of C in fig. 3.
Reference numerals: 1. a base; 2. a lamp shade; 3. a white light emitting body; 4. a yellow fluorescent film; 5. mounting grooves; 6. a wind-up roll; 7. a slide bar; 71. a first rod body; 72. a second rod body; 73. a slot; 74. a through hole; 75. a rubber ring; 8. a chute; 9. a clamping block; 91. a notch; 10. a card slot; 11. a volute spiral spring; 12. a sealing strip.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
The first embodiment is as follows:
a surface light source comprises a rectangular base 1, a lampshade 2 and a white luminous body 3 arranged in the lampshade 2, wherein an installation groove 5 is arranged in the base 1, 4 yellow fluorescent films 4 are arranged in the installation groove 5, the yellow fluorescent films 4 comprise 0.1% of yellow fluorescent powder, 10% of diffusion master batches and 89.9% of transparent engineering plastic granules according to parts by weight, and the particle size of the yellow fluorescent powder is 1 um.
TABLE 1 data comparison of Low blue LED lamps with common LED lamps
Be equipped with 4 wind-up rolls 6 around base 1 with rotating, 4 wind-up rolls 6 extend to outside the base 1 respectively, and every yellow fluorescent film 4 twines respectively on corresponding wind-up roll 6 and one end and wind-up roll 6 reciprocal anchorage. Two sides of the wind-up roll 6 are respectively sleeved with a volute spiral spring 11, one end of the volute spiral spring 11 is fixed with the side wall of the wind-up roll 6, and the other end of the volute spiral spring is fixed with the base 1.
As shown in fig. 2, a sliding groove 8 is formed in the side wall of the base 1, a sliding rod 7 is slidably disposed in the sliding groove 8, the sliding rod 7 extends out of the sliding groove 8, the other end of the yellow fluorescent film 4, which is opposite to the winding roller 6, is fixed to the sliding rod 7, two ends of the sliding rod 7 are respectively sleeved with a fixture block 9, an external thread is disposed on the sliding rod 7, an internal thread adapted to the fixture block 9 is disposed on the fixture block 9, after the yellow fluorescent film 4 is unwound, a clamping groove 10 clamped with the fixture block 9 is disposed in the side wall of the base 1, a strip-shaped sealing strip 12 is disposed in the sliding groove 8, and a.
As shown in fig. 4 and 5, the rod body is a cylinder, the sliding rod 7 includes a first rod body 71 and a second rod body 72, a slot 73 is formed in a side wall of the second rod body 72, the first rod body 71 is clamped in the slot 73, a through hole 74 for the yellow fluorescent film 4 to pass through is formed in the first rod body 71, the yellow fluorescent film 4 passes through the through hole 74 and is fixedly connected with the second rod body 72, a rubber ring 75 attached to the yellow fluorescent film 4 is formed on an inner wall of the through hole 74, and a notch 91 for the first rod body 71 to separate from is formed in the fixture block 9 after the fixture block 9.
When the yellow fluorescent film 4 needs to be added, the clamping blocks 9 at the two ends of the sliding rod 7 are unscrewed, the sliding rod 7 is pulled by two hands to move towards one end far away from the winding roller 6, so that the yellow fluorescent film 4 on the winding roller 6 is in an unreeling state, and when the sliding rod 7 moves to the tail end of the sliding groove 8, the clamping blocks 9 are screwed tightly to be clamped into the clamping grooves 10; when the number of the yellow fluorescent films 4 needs to be reduced, the clamping blocks 9 at the two ends of the sliding rod 7 only need to be unscrewed to enable the clamping blocks 9 to be separated from the clamping grooves 10, and the winding roller 6 rotates under the action of the turbine spring to enable the yellow fluorescent films 4 to be wound. And finally, screwing the fixture block 9.
Example two:
the main differences from the first embodiment are as follows: a surface light source comprises a rectangular base 1, a lampshade 2 and a white luminous body 3 arranged in the lampshade 2, wherein a mounting groove 5 is arranged in the base 1, 4 yellow fluorescent films 4 are arranged in the mounting groove 5, and the yellow fluorescent films 4 comprise 1% of yellow fluorescent powder, 15% of diffusion master batches, 84% of transparent engineering plastic particles and 2um of yellow fluorescent powder in particle size according to parts by weight.
EXAMPLE III
The main differences from the first embodiment are as follows: a surface light source comprises a rectangular base 1, a lampshade 2 and a white luminous body 3 arranged in the lampshade 2, wherein a mounting groove 5 is arranged in the base 1, 4 yellow fluorescent films 4 are arranged in the mounting groove 5, and the yellow fluorescent films 4 comprise 1.5% of yellow fluorescent powder, 20% of diffusion master batches, 78.5% of transparent engineering plastic particles and 3 mu m of the particle size of the yellow fluorescent powder according to parts by weight.
In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "bottom" and "top," "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
Claims (5)
1. The utility model provides a surface light source, includes base (1), lamp shade (2) and white luminous body (3) of setting in lamp shade (2), characterized by: the inner side of the lampshade (2) is provided with a yellow fluorescent film (4), the yellow fluorescent film (4) comprises, by weight, 0.1-1.5% of yellow fluorescent powder, 10-20% of diffusion master batches and 78.5-89.9% of transparent engineering plastic granules, the particle size of the yellow fluorescent powder is less than or equal to 4 microns, a mounting groove (5) is formed in the lampshade (2), the yellow fluorescent film (4) is arranged in the mounting groove (5) and is provided with a plurality of pieces, the base (1) is rotatably provided with a plurality of winding rollers (6), one end of the yellow fluorescent film (4) is fixed on the winding rollers (6), the winding rollers (6) extend out of the base (1), the other end of the yellow fluorescent film (4) relative to the winding rollers (6) is provided with a sliding rod (7), the base (1) is provided with a sliding groove (8) for the sliding rod (7) to slide transversely, the slide bar (7) extends out of the slide groove (8), the slide bar (7) outside the base (1) is sleeved with a clamping block (9) in a sliding way, after the yellow fluorescent film (4) is unreeled, a clamping groove (10) clamped with the clamping block (9) is arranged on the side wall of the base (1), the sliding rod (7) comprises a first rod body (71) and a second rod body (72), the second rod body (72) is provided with a slot (73), the first rod body (71) is clamped in the slot (73), a through hole (74) for the yellow fluorescent film (4) to pass through is arranged on the first rod body (71), the yellow fluorescent film (4) passes through the through hole (74) and is fixedly connected with the second rod body (72), and a rubber ring (75) attached to the yellow fluorescent film (4) is arranged on the inner wall of the through hole (74), and a notch (91) for the first rod body (71) to be separated from is formed in the clamping block (9) after the clamping block (9) is locked.
2. The surface light source of claim 1, wherein: the sliding rod (7) outside the base (1) is provided with an external thread, and the clamping block (9) is provided with an internal thread matched with the external thread on the sliding rod (7).
3. The surface light source of claim 2, wherein: the winding roller (6) is sleeved with a volute spiral spring (11), one end of the volute spiral spring (11) is fixed to the winding roller (6), and the other end of the volute spiral spring is fixed to the base (1).
4. The surface light source of claim 3, wherein: be equipped with sealing strip (12) in spout (8), one side and spout (8) inner wall are fixed on sealing strip (12) long limit.
5. The surface light source as set forth in claim 4, wherein: the number of the winding rollers (6) is four, and the winding rollers are respectively distributed on the periphery of the base (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910118519.2A CN109958925B (en) | 2019-02-16 | 2019-02-16 | Area light source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910118519.2A CN109958925B (en) | 2019-02-16 | 2019-02-16 | Area light source |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109958925A CN109958925A (en) | 2019-07-02 |
| CN109958925B true CN109958925B (en) | 2021-06-29 |
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ID=67023709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910118519.2A Active CN109958925B (en) | 2019-02-16 | 2019-02-16 | Area light source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109958925B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103104849A (en) * | 2013-03-01 | 2013-05-15 | 上海嘉塘电子有限公司 | Light-emitting diode (LED) lamp with double-layer lamp cover |
| CN103162230A (en) * | 2013-03-01 | 2013-06-19 | 上海嘉塘电子有限公司 | Light-emitting diode (LED) fluorescence lampshade |
| CN203880590U (en) * | 2013-12-30 | 2014-10-15 | 四川新力光源股份有限公司 | LED reflector lamp capable of mechanically adjusting colors |
| CN104393157A (en) * | 2014-11-24 | 2015-03-04 | 上海祥羚光电科技发展有限公司 | Fluorescent plastic master batch production and application for LED (Light Emitting Diode) white light secondary light conversion |
| CN204201672U (en) * | 2014-11-18 | 2015-03-11 | 上海祥羚光电科技发展有限公司 | A kind of backlight with secondary light conversion |
| CN104747913A (en) * | 2013-12-31 | 2015-07-01 | 重庆希晨科技有限公司 | LED lamp close to natural light |
| CN206449462U (en) * | 2016-01-08 | 2017-08-29 | 松下知识产权经营株式会社 | Lighting device |
| CN107450261A (en) * | 2016-05-31 | 2017-12-08 | 佳能株式会社 | Wavelength changing element, light supply apparatus and image projection device |
| CN107859888A (en) * | 2017-11-16 | 2018-03-30 | 广东晶科电子股份有限公司 | A kind of adjustable color temperature and the aobvious light source referred to |
| CN207500827U (en) * | 2017-09-12 | 2018-06-15 | 刘前明 | A kind of dust-proof LED light of color-adjustable |
-
2019
- 2019-02-16 CN CN201910118519.2A patent/CN109958925B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103104849A (en) * | 2013-03-01 | 2013-05-15 | 上海嘉塘电子有限公司 | Light-emitting diode (LED) lamp with double-layer lamp cover |
| CN103162230A (en) * | 2013-03-01 | 2013-06-19 | 上海嘉塘电子有限公司 | Light-emitting diode (LED) fluorescence lampshade |
| CN203880590U (en) * | 2013-12-30 | 2014-10-15 | 四川新力光源股份有限公司 | LED reflector lamp capable of mechanically adjusting colors |
| CN104747913A (en) * | 2013-12-31 | 2015-07-01 | 重庆希晨科技有限公司 | LED lamp close to natural light |
| CN204201672U (en) * | 2014-11-18 | 2015-03-11 | 上海祥羚光电科技发展有限公司 | A kind of backlight with secondary light conversion |
| CN104393157A (en) * | 2014-11-24 | 2015-03-04 | 上海祥羚光电科技发展有限公司 | Fluorescent plastic master batch production and application for LED (Light Emitting Diode) white light secondary light conversion |
| CN206449462U (en) * | 2016-01-08 | 2017-08-29 | 松下知识产权经营株式会社 | Lighting device |
| CN107450261A (en) * | 2016-05-31 | 2017-12-08 | 佳能株式会社 | Wavelength changing element, light supply apparatus and image projection device |
| CN207500827U (en) * | 2017-09-12 | 2018-06-15 | 刘前明 | A kind of dust-proof LED light of color-adjustable |
| CN107859888A (en) * | 2017-11-16 | 2018-03-30 | 广东晶科电子股份有限公司 | A kind of adjustable color temperature and the aobvious light source referred to |
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| CN109958925A (en) | 2019-07-02 |
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