CN206398633U - Annular light guide plate - Google Patents
Annular light guide plate Download PDFInfo
- Publication number
- CN206398633U CN206398633U CN201621348336.8U CN201621348336U CN206398633U CN 206398633 U CN206398633 U CN 206398633U CN 201621348336 U CN201621348336 U CN 201621348336U CN 206398633 U CN206398633 U CN 206398633U
- Authority
- CN
- China
- Prior art keywords
- light guide
- light
- annular
- reflector plate
- guide sheet
- 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
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- Light Guides In General And Applications Therefor (AREA)
- Planar Illumination Modules (AREA)
Abstract
The utility model discloses annular light guide plate, upper reflector plate and lower reflector plate including being set in parallel in light guide sheet upper and lower surface in opposite directions, taper reflective surface is provided with light guide sheet below reflector plate, rib is reflected in the center of taper reflective surface provided with V-type, V-type reflection rib is connected with each other to be extended outwardly along taper is reflective, in relative entrance port of the place provided with light of conical reflecting surface on lower reflector plate, light guide sheet stretches out and exposes to form exiting surface from the surrounding of upper reflector plate, the side wall of light guide sheet is provided with out light reflection surface, and the outgoing plane for going out light reflection surface is relative with exiting surface.The beneficial effects of the utility model are：The annular light guide plate that the utility model is provided, under conditions of LED light source strength is not increased, improve luminous intensity concentration degree, lower the light intensity of scattered loss, the combination of rib and taper reflective surface is reflected by V-type, direct light to annular exiting surface to project, the diffusion of its light is small, injection angle distribution is small, and then obtain the higher annular light effect of intensity.
Description
【Technical field】
The utility model is related to the annular light guide plate for scattering light source and assembling high intensity ring light.
【Background technology】
Realize that the method for ring light is varied at present, such as annular LED, annular EL cold light films, annular light guide plate, annular are led
Light beam etc., final purpose is to obtain a ring of light, and wherein at most, annular LED is due to cost Gao Yuyong for light guide plate and annular LED
The many two principal elements influences of electricity, now fewer and fewer to use, light guide plate turns into main flow, but the light guide plate of market is usual
Annular light source is made using anaclasis reflection at random or diffusion particle diffusion principle, its luminous intensity is disperseed, it is impossible to precisely focused on
Projected on ring, this design can waste many luminous intensities.And increasing LED light source strength can cause power consumption to increase.
【Utility model content】
The purpose of this utility model is to overcome the deficiencies in the prior art, the annular light guide plate that the utility model is provided,
Under conditions of not increasing LED light source strength, improve luminous intensity concentration degree, lower the light intensity of scattered loss, by V-type reflect rib with
The combination of taper reflective surface, directs light to annular exiting surface and projects, and the diffusion of its light is small, injection angle distribution is small, and then
Obtain the higher annular light effect of intensity.
In order to solve the above-mentioned technical problem, the annular light guide plate that the utility model embodiment is provided, including opposite parallel set
Put and cone is provided with below the reflector plate in the upper reflector plate and lower reflector plate in light guide sheet upper and lower surface, the light guide sheet
Rib is reflected in shape reflective surface, the center of the taper reflective surface provided with V-type, and the V-type reflection rib is connected with each other reflective along taper
Extend outwardly, in relative entrance port of the place provided with light of the conical reflecting surface on the lower reflector plate, the light guide sheet is outside
Extend and expose to form exiting surface from the surrounding of upper reflector plate, the side wall of the light guide sheet is provided with out light reflection surface, the light extraction
The outgoing plane of reflecting surface is relative with the exiting surface.
In said structure, the radial section of the upper reflector plate, lower reflector plate and light guide sheet is circular, and described anti-
Penetrate and be coaxially disposed between piece, lower reflector plate and light guide sheet, the exiting surface of formation is annular.
In said structure, be provided with the light guide sheet at the entrance port into refractive optical surface, it is described enter anaclasis bread
The plane of refraction and the corrugated refraction faceted pebble around plane of refraction surrounding of center are included, the corrugated reflects faceted pebble convex-concave
Rise and fall and radially equidistantly scattered along the light guide sheet.
In said structure, multiple be arranged concentrically is surrounded by around what the corrugated reflected faceted pebble in the light guide sheet
Annular reflex rib, the annular reflex rib is equidistantly along the light guide sheet radial development, the annular reflex close to light guide sheet center
The outer ring that rib reflects faceted pebble with the corrugated is arranged at intervals.
In said structure, the cross section of the annular reflex rib is triangle, the section triangle summit of annular reflex rib
Interior angle be less than 45 degree.
Implement the utility model embodiment, have the advantages that：
In the utility model embodiment, the annular light guide plate that the utility model is provided is not increasing the bar of LED light source strength
Under part, luminous intensity concentration degree is improved, lowers the light intensity of scattered loss, the combination of rib and taper reflective surface is reflected by V-type, by light
Line is directed to annular exiting surface and projected, and the diffusion of its light is small, injection angle distribution is small, and then obtains the higher annular light efficiency of intensity
Really.
【Brief description of the drawings】
Fig. 1 is the structural representation of the annular light guide plate of the utility model.
Fig. 2 is the partial enlarged drawing of encircled portion in Fig. 1.
Fig. 3 is the axial schematic cross-sectional view of the annular light guide plate of the utility model.
In figure：1st, light source；2nd, light guide sheet；3rd, upper reflector plate；4th, lower reflector plate；5th, plane of refraction；6th, V-type reflection rib；7、
Corrugated reflects faceted pebble；8th, annular reflex rib；9th, taper reflective surface；10th, light reflection surface is gone out；11st, exiting surface.
【Embodiment】
Below in conjunction with the accompanying drawings and embodiment is further described to the utility model：
The utility model embodiment discloses a kind of annular light guide plate, including is set in parallel in following table in light guide sheet 2 in opposite directions
Taper reflective surface 9, taper reflective surface 9 are provided with below reflector plate in the upper reflector plate 3 in face and lower reflector plate 4, light guide sheet 2
Center reflect rib 6 provided with V-type, V-type reflection rib 6 is connected with each other along taper reflective surface 9 and stretched out, on lower reflector plate 4 in
Relative entrance port of the place provided with light of conical reflecting surface, light guide sheet 2 stretches out and exposes to form light extraction from the surrounding of upper reflector plate 3
Face 11, the side wall of light guide sheet 2 is provided with out light reflection surface 10, and the outgoing plane for going out light reflection surface 10 is relative with exiting surface 11, such light
Road is most reflected through light extraction reflecting surface 10 after upper reflector plate 3 and the constantly reflection of lower reflector plate 4 and projects light from exiting surface 11 afterwards,
Light is lost in transmittance process small, concentrate light intensity.
Further, the radial section of upper reflector plate 3, lower reflector plate 4 and light guide sheet 2 for circle, and upper reflector plate 3,
It is coaxially disposed between lower reflector plate 4 and light guide sheet 2, the exiting surface 11 of formation is annular, and light is penetrated from the exiting surface 11 of annular
Go out the higher ring light of light intensity.
Further, it is provided with light guide sheet 2 at entrance port into refractive optical surface, entering refractive optical surface includes the refraction of center
Plane 5 and the corrugated refraction faceted pebble 7 around the surrounding of plane of refraction 5, corrugated refraction faceted pebble 7 convex-concave rise and fall along light guide sheet 2
Radially equidistantly scatter；It should be understood that light is refracted into beat in light guide sheet 2 through plane of refraction 5 reflects guide on rib 6 in V-type
The radial diffusion of tabula rasa, and after the multiple reflections of upper reflector plate 3 and lower reflector plate 4, finally projected from exiting surface 11, and ripple
The light that shape refraction faceted pebble 7 is refracted into light guide sheet 2 is scattered in light guide sheet 2 by the edge of conical reflecting surface, so,
The light that effectively aggregation light source 1 is sent, forms the higher ring light of light intensity.
Further, multiple annular reflexs being arranged concentrically are surrounded by around corrugated refraction faceted pebble 7 in light guide sheet 2
Rib 8, annular reflex rib 8 is equidistantly along the radial development of light guide sheet 2, and annular reflex rib 8 and corrugated close to the center of light guide sheet 2 are rolled over
The outer ring for penetrating faceted pebble 7 is arranged at intervals, it is possible to understand that, the fixed point of annular reflection rib reflects faceted pebble 7 above corrugated, and ring-type is anti-
Upper reflecting piece can be reflexed to by the light reflected through taper reflective surface 9 by penetrating rib 8, the light of outer shroud is obtained focus utilization.
Further, the cross section of annular reflex rib 8 be triangle, the section triangle summit of annular reflex rib 8 it is interior
Angle is less than 45 degree, and this three corner reflections rib is easy to processing, and light reflective properties are good.
Described above is only preferred embodiment of the present utility model, and above-mentioned specific embodiment is not to the utility model
Limitation.In technological thought category of the present utility model, various modifications and modification, the ordinary skill of all this areas can occur
Retouching, modification or equivalent substitution that personnel are made as described above, belong to the scope that the utility model is protected.
Claims (5)
1. annular light guide plate, including the upper reflector plate and lower reflector plate of light guide sheet upper and lower surface are set in parallel in opposite directions, it is described to lead
Taper reflective surface is provided with mating plate below the reflector plate, rib is reflected in the center of the taper reflective surface provided with V-type,
The V-type reflection rib is connected with each other to be extended outwardly along taper is reflective, relative in the conical reflecting surface on the lower reflector plate
Entrance port of the place provided with light, the light guide sheet stretches out and exposes to form exiting surface from the surrounding of upper reflector plate, the leaded light
The side wall of piece is provided with out light reflection surface, it is described go out light reflection surface outgoing plane it is relative with the exiting surface.
2. annular light guide plate according to claim 1, it is characterised in that：The upper reflector plate, lower reflector plate and leaded light
The radial section of piece is circle, and is coaxially disposed between the upper reflector plate, lower reflector plate and light guide sheet, the exiting surface of formation
For annular.
3. annular light guide plate according to claim 2, it is characterised in that：It is provided with the light guide sheet at the entrance port
Enter refractive optical surface, it is described enter refractive optical surface include the plane of refraction of center and the corrugated refraction around plane of refraction surrounding
Faceted pebble, the corrugated refraction faceted pebble convex-concave rises and falls radially equidistantly scatters along the light guide sheet.
4. annular light guide plate according to claim 3, it is characterised in that：Reflected in the light guide sheet around the corrugated
Faceted pebble is surrounded by multiple annular reflex ribs being arranged concentrically, and the annular reflex rib is equidistantly along the light guide sheet radial direction exhibition
Open, the outer ring that annular reflex rib and the corrugated close to light guide sheet center reflect faceted pebble is arranged at intervals.
5. annular light guide plate according to claim 4, it is characterised in that：The cross section of the annular reflex rib is triangle
Shape, the interior angle on the section triangle summit of annular reflex rib is less than 45 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621348336.8U CN206398633U (en) | 2016-12-09 | 2016-12-09 | Annular light guide plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621348336.8U CN206398633U (en) | 2016-12-09 | 2016-12-09 | Annular light guide plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206398633U true CN206398633U (en) | 2017-08-11 |
Family
ID=59509514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621348336.8U Expired - Fee Related CN206398633U (en) | 2016-12-09 | 2016-12-09 | Annular light guide plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206398633U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021042973A1 (en) * | 2019-09-02 | 2021-03-11 | 华为技术有限公司 | Ring lamp and electronic device |
-
2016
- 2016-12-09 CN CN201621348336.8U patent/CN206398633U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021042973A1 (en) * | 2019-09-02 | 2021-03-11 | 华为技术有限公司 | Ring lamp and electronic device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170811 Termination date: 20181209 |