CN105508942A - Lens used for lighting device with arc-shaped lampshade and lighting device - Google Patents
Lens used for lighting device with arc-shaped lampshade and lighting device Download PDFInfo
- Publication number
- CN105508942A CN105508942A CN201610038521.5A CN201610038521A CN105508942A CN 105508942 A CN105508942 A CN 105508942A CN 201610038521 A CN201610038521 A CN 201610038521A CN 105508942 A CN105508942 A CN 105508942A
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- China
- Prior art keywords
- lens
- lens body
- refraction
- lighting device
- plane
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Classifications
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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
- F21S8/04—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures
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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
- F21V19/00—Fastening of light sources or lamp holders
- F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
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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
- F21V3/00—Globes; Bowls; Cover glasses
-
- 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
- F21V5/00—Refractors for light sources
- F21V5/04—Refractors for light sources of lens shape
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The invention discloses a lens used for a lighting device with an arc-shaped lampshade. The lens comprises an annular lens body. Annular grooves for containing lamp beads are formed in the bottom face of the lens body. The inner walls of the annular grooves serve as first refraction surfaces. An annular convex second refraction surface is arranged on the upper surface of the lens body. Light emitted by the lamp beads sequentially passes through the first refraction surfaces and the second refraction surface and then is emitted out. The outer circle diameter of the lens body is smaller than or equal to 80 mm, and the beam angle of the lens body ranges from 150 degrees to 175 degrees. The invention further discloses the lighting device. The lens is applied to the lighting device with the arc-shaped lampshade. During application, the lamp beads are arranged in the annular grooves, the light emitted by the lamp beads is refracted through the first refraction surfaces and the second refraction surface of the lens body and then diffused, the diffusion angle of the light is increased, the outer circle diameter and the beam angle of the lens body are controlled, and it can be guaranteed that the brightness of the arc-shaped lampshade is evenly distributed on the basis that the production cost of the lighting device is reduced.
Description
Technical field
The present invention relates to lens art, particularly relate to a kind of lens of the lighting device for arc lampshade and apply the lighting device of these lens.
Background technology
The existing lighting device with arc lampshade comprises lamp affixed to the ceiling on the market, the light that lamp affixed to the ceiling lamp pearl is launched penetrates through arc lampshade, but lamp affixed to the ceiling can make not greatly arc-shaped lamp cover Luminance Distribution uneven due to lamp pearl lighting angle, affect lighting quality, in order to address this problem, market has occurred the lensed lighting device of a kind of band, the light that LED lamp bead produces spreads by scioptics.
Although scioptics can improve illuminating device luminous uniformity, but in order to reach this object, LED lamp bead must be arranged on the position near arc-shaped lamp shroud rim, corresponding, the diametric requirements of light source board and lens is larger, cause the cost of LED lamp bead, light source board and lens higher, a kind ofly can realize uniformly light-emitting so now need design and the lens of lighting device manufacturing cost can be saved and apply the lighting device of these lens.
Summary of the invention
Technical problem to be solved by this invention is, a kind of lens of the lighting device for arc lampshade are provided, lens body diameter range is less, the use amount of small lamp bulb and the area of light source board can be subtracted, reduce the production cost of lighting device, and control the beam angle scope of lens body, ensure the illuminance distribution of arc lampshade.
In order to solve the problems of the technologies described above, the invention provides a kind of lamp lens of the lighting device for arc lampshade, comprise the lens body of ring-type, the bottom surface of described lens body is provided with the annular groove for holding lamp pearl, the inwall of described annular groove is first refractive face, the upper surface of described lens body is provided with the second plane of refraction of annular projection, and the light that lamp pearl is launched penetrates successively behind first refractive face and the second plane of refraction; Outside diameter≤the 80mm of described lens body, the beam angle scope of described lens body is 150 ° to 175 °.
As the preferred embodiment of lens of the present invention, described annular groove is identical with the axis of the second plane of refraction.
As the preferred embodiment of lens of the present invention, the radial section in described first refractive face is two the first symmetrical camber lines, the radial section of described second plane of refraction is two the second symmetrical camber lines, described first camber line and the second camber line are convex configuration, and the first camber line and the second camber line are positioned on same vertical curve on the summit in same cross section.
As the preferred embodiment of lens of the present invention, the first camber line and the second camber line become large in the gap in same cross section downwards gradually by top.
As the preferred embodiment of lens of the present invention, the height≤6mm of described lens body.
As the preferred embodiment of lens of the present invention, the center of described lens body is provided with the mounting platform caved in, and the second plane of refraction is arranged around mounting platform, and described mounting platform is provided with locating hole.
As the preferred embodiment of lens of the present invention, described lens body and mounting platform are integral type structure.
As the preferred embodiment of lens of the present invention, described second plane of refraction is frosting.
Accordingly, present invention also offers a kind of lighting device, comprise lens of the present invention.
Implement embodiments of the invention, there is following beneficial effect:
Lens of the present invention are applied to the lighting device with arc lampshade, during application, lamp pearl is placed in annular groove, the light that lamp pearl is launched spreads behind the first refractive face of lens body and the refraction of the second plane of refraction, the diffusion angle of increasing light, ensures the illuminance distribution of arc lampshade.The outside diameter of lens controls within 80mm by the present invention, accordingly, the diameter of lamp pearl arrangement and the area of light source board also can reduce, to greatly reduce the production cost of lighting device, and the beam angle of lens body is controlled between 150 ° to 175 °, to make lens when small diameter scope, the illuminance distribution of arc lampshade can also be ensured, improve the lighting quality of lighting device.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of lens of the present invention;
Fig. 2 is the structural representation of lens body bottom surface of the present invention;
Fig. 3 is lens of the present invention sectional views radially;
Fig. 4 is the partial enlarged drawing at A place in Fig. 3;
Fig. 5 is the distribution curve flux figure of lens of the present invention.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, the present invention is described in further detail.Only this statement, the present invention occurs in the text or is about to the up, down, left, right, before and after occurred, the orientation word such as inside and outside, only with accompanying drawing of the present invention for benchmark, it is not to concrete restriction of the present invention.
See accompanying drawing 1 to accompanying drawing 5, the invention discloses a kind of lens of the lighting device for arc lampshade, lens are applied to lamp affixed to the ceiling, comprise the lens body 1 of ring-type, the bottom surface of described lens body 1 is provided with the annular groove 2 for holding lamp pearl, the inwall of described annular groove 2 is first refractive face 11, and the upper surface of described lens body 1 is provided with the second plane of refraction 12 of annular projection, and the light that lamp pearl is launched penetrates successively behind first refractive face 11 and the second plane of refraction 12.Described second plane of refraction 12 is preferably frosting, and the top layer of lens body 1 i.e. the second plane of refraction 12 is carried out frosted process, make lens bright dipping evenly, and can color difference eliminating, improve the quality of illumination.
Lens of the present invention are applicable to the lamp pearl of rounded arrangement, during installation, lamp pearl is placed in annular groove 2, and be positioned at the midline position of annular groove, lamp pearl emission of light inject in lens body 1 by first refractive face 11 in annular groove 2, after the transmission of lens body 1, then is penetrated by the second plane of refraction 12, its direction of motion is as shown in arrow B in Fig. 4, and the direction of arrow B just roughly represents the direction of motion of light.
Further, the center of described lens body 1 is provided with mounting platform 3, second plane of refraction 12 caved in and arranges around mounting platform 3, and described mounting platform 3 is provided with locating hole 31.Lens body 1 of the present invention is connected with light source board and lamp socket etc. by mounting platform 3, specifically can be connected by connectors such as screws, in order to the trend preventing mounting platform 3 from having influence on lamp pearly-lustre line, wherein mounting platform 3 is designed to the form of caving in, and in order to simplify structure, in order to avoid the impact that other connectors bring, lens body 1 of the present invention is integral type structure with mounting platform 3, simplify installation steps, structure is simple, can not stop the propagation of light.
It should be noted that, the outside diameter of existing lamp affixed to the ceiling generally about 350mm or within (such as 250mm to 400mm), in order to prevent the generation of dark space, lamp pearl generally needs to be arranged on the position near lampshade edge, accordingly, lens are in order to spread light, need to cover lamp pearl, now, the size of lens is also relatively large, at least need more than 100mm, the waste of resource must be caused, in order to address this problem, outside diameter≤the 80mm of lens body 1 of the present invention, the beam angle scope of described lens body 1 is 150 ° to 175 °, the outermost circle diameter of lens body 1 is limited within 80mm by the present invention, in order to realize no dark space illumination in this diameter range, the beam angle of lens body 1 is limited between 150 ° to 175 °, now, the diameter of lens body reduces greatly, the diameter of lamp pearl arrangement and the size of light source board all can reduce, the cost of lighting device can be reduced, and lens body can not produce total reflection, also can solve illumination and produce this problem of dark space.
Preferably, height≤the 6mm of described lens body 1, the diameter of corresponding lens body 1 and beam angle scope, inventor finds that the height of lens body is selected to drop to minimum by the cost of lighting device within 6mm, and can not produce total reflection and dark space.
See Fig. 3 and Fig. 4, described annular groove 2 is identical with the axis of the second plane of refraction 12, namely first refractive face and the second plane of refraction are the loop configuration of same axis, the radial section in described first refractive face 11 is two the first symmetrical camber lines 110, the radial section of described second plane of refraction 12 is two the second symmetrical camber lines 120, described first camber line 110 and the second camber line 120 are convex configuration, and the first camber line 110 and the second camber line 120 are positioned on same vertical curve on the summit in same cross section.The culminating point of the first camber line 110 and the second camber line 120 is located on same vertical curve, according to design needs, part near lens body 1 center is relatively short, shorter side and other side same area opposed apexes vertical curve symmetrical, the light of lamp pearl can penetrate comparatively uniformly, and the first camber line 110 and the second camber line 120 become large in the gap in same cross section downwards gradually by top, namely lens body 1 is thickening gradually to both sides by top, now, the light angle that rims of the lens is dispersed is larger, the dispersion angle of the position of lens body near top is relatively little, this design can expand the dispersion angle of light, and can not total reflection phenomenon be produced, ensure the illuminance distribution of arc lampshade.
The invention also discloses a kind of lighting device, comprise lens of the present invention.The maximum gauge of arc lampshade of the present invention and the ratio of its lens can reach about 4 times, and lamp pearl arrangement diameter reduces greatly, can save the number of lamp pearl and the area of light source board, especially greatly can save processing cost for during production in enormous quantities.
Lens body 1 is located at the center of base, and the position of the non-lens body 1 of base is comparatively large, and now, driving power can be located at the position in base beyond lens body 1, driving power can not affect the trend of light, and easy for installation.
The above is the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications are also considered as protection scope of the present invention.
Claims (9)
1. the lens for the lighting device of arc lampshade, it is characterized in that, comprise the lens body of ring-type, the bottom surface of described lens body is provided with the annular groove for holding lamp pearl, the inwall of described annular groove is first refractive face, the upper surface of described lens body is provided with the second plane of refraction of annular projection, and the light that lamp pearl is launched penetrates successively behind first refractive face and the second plane of refraction;
Outside diameter≤the 80mm of described lens body, the beam angle scope of described lens body is 150 ° to 175 °.
2. lens according to claim 1, is characterized in that, described annular groove is identical with the axis of the second plane of refraction.
3. lens according to claim 1 and 2, it is characterized in that, the radial section in described first refractive face is two the first symmetrical camber lines, the radial section of described second plane of refraction is two the second symmetrical camber lines, described first camber line and the second camber line are convex configuration, and the first camber line and the second camber line are positioned on same vertical curve on the summit in same cross section.
4. lens according to claim 3, is characterized in that, the first camber line and the second camber line become large in the gap in same cross section downwards gradually by top.
5. lens according to claim 1, is characterized in that, the height≤6mm of described lens body.
6. lens according to claim 1, is characterized in that, the center of described lens body is provided with the mounting platform caved in, and the second plane of refraction is arranged around mounting platform, and described mounting platform is provided with locating hole.
7. lens according to claim 6, is characterized in that, described lens body and mounting platform are integral type structure.
8. lens according to claim 1, is characterized in that, described second plane of refraction is frosting.
9. a lighting device, is characterized in that, comprises the lens described in any one of claim 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610038521.5A CN105508942A (en) | 2016-01-21 | 2016-01-21 | Lens used for lighting device with arc-shaped lampshade and lighting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610038521.5A CN105508942A (en) | 2016-01-21 | 2016-01-21 | Lens used for lighting device with arc-shaped lampshade and lighting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105508942A true CN105508942A (en) | 2016-04-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610038521.5A Pending CN105508942A (en) | 2016-01-21 | 2016-01-21 | Lens used for lighting device with arc-shaped lampshade and lighting device |
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| Country | Link |
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| CN (1) | CN105508942A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107166334A (en) * | 2017-06-13 | 2017-09-15 | 苏州欧普照明有限公司 | A kind of lighting device of the optical devices and application optical element |
| CN107976726A (en) * | 2017-11-13 | 2018-05-01 | 成都依菲兰科技有限公司 | A kind of adjustable cylindrical lenses of light efficiency |
| WO2018228207A1 (en) * | 2017-06-13 | 2018-12-20 | 苏州欧普照明有限公司 | Optical element and lighting apparatus using optical element |
| CN114942546A (en) * | 2022-05-31 | 2022-08-26 | 深圳市宏普欣电子科技有限公司 | Mini LED backlight module with large light-emitting angle |
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| JP2014146560A (en) * | 2013-01-30 | 2014-08-14 | Panasonic Corp | Illumination device |
| CN203940327U (en) * | 2014-07-03 | 2014-11-12 | 苏州鸿益丰光电有限公司 | Light modulation lens and apply the LED lamp affixed to the ceiling of these lens |
| US20150042891A1 (en) * | 2012-02-01 | 2015-02-12 | Sharp Kabushiki Kaisha | Illumination apparatus, and liquid crystal display apparatus and television receiver apparatus provided with same |
| CN105180093A (en) * | 2015-10-23 | 2015-12-23 | 欧普照明股份有限公司 | Lens, light source module and lighting devices |
| CN105180092A (en) * | 2015-10-23 | 2015-12-23 | 欧普照明股份有限公司 | Lens and light source module |
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2016
- 2016-01-21 CN CN201610038521.5A patent/CN105508942A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150042891A1 (en) * | 2012-02-01 | 2015-02-12 | Sharp Kabushiki Kaisha | Illumination apparatus, and liquid crystal display apparatus and television receiver apparatus provided with same |
| JP2014146560A (en) * | 2013-01-30 | 2014-08-14 | Panasonic Corp | Illumination device |
| CN203940327U (en) * | 2014-07-03 | 2014-11-12 | 苏州鸿益丰光电有限公司 | Light modulation lens and apply the LED lamp affixed to the ceiling of these lens |
| CN105180093A (en) * | 2015-10-23 | 2015-12-23 | 欧普照明股份有限公司 | Lens, light source module and lighting devices |
| CN105180092A (en) * | 2015-10-23 | 2015-12-23 | 欧普照明股份有限公司 | Lens and light source module |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107166334A (en) * | 2017-06-13 | 2017-09-15 | 苏州欧普照明有限公司 | A kind of lighting device of the optical devices and application optical element |
| WO2018228207A1 (en) * | 2017-06-13 | 2018-12-20 | 苏州欧普照明有限公司 | Optical element and lighting apparatus using optical element |
| CN107166334B (en) * | 2017-06-13 | 2021-12-21 | 苏州欧普照明有限公司 | Optical element and lighting device using same |
| CN107976726A (en) * | 2017-11-13 | 2018-05-01 | 成都依菲兰科技有限公司 | A kind of adjustable cylindrical lenses of light efficiency |
| CN114942546A (en) * | 2022-05-31 | 2022-08-26 | 深圳市宏普欣电子科技有限公司 | Mini LED backlight module with large light-emitting angle |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160420 |
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| RJ01 | Rejection of invention patent application after publication |