CN204227312U - Led lens - Google Patents
Led lens Download PDFInfo
- Publication number
- CN204227312U CN204227312U CN201420594847.2U CN201420594847U CN204227312U CN 204227312 U CN204227312 U CN 204227312U CN 201420594847 U CN201420594847 U CN 201420594847U CN 204227312 U CN204227312 U CN 204227312U
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- CN
- China
- Prior art keywords
- led lens
- collecting part
- light collecting
- light
- utility
- 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.)
- Withdrawn - After Issue
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Abstract
The utility model discloses a kind of LED lens, comprise: light collecting part, the perisporium of described light collecting part is fully reflecting surface, and the diapire of described light collecting part is provided with the groove being suitable for placing light source to being recessed on, the perisporium of described groove forms first plane of incidence, and the roof of described groove forms second plane of incidence; Astigmatism portion, described astigmatism portion is located at the top of described light collecting part, the upper surface in described astigmatism portion is provided with multiple light exit portion raised up, described multiple smooth exit portion is connected with each other the exit facet limiting general rectangular, and wherein each described smooth exit portion is projected as the rhombus that four edges concaves on the upper surface in described astigmatism portion.According to LED lens of the present utility model, the hot spot of similar rectangle can be generated more easily, and to the size of LED lens and dimension of light source less demanding.
Description
Technical field
The utility model relates to optical field, particularly a kind of LED lens.
Background technology
The hot spot sub-elliptical of the similar rectangular lens formation that current use is more, if be difficult to the effect occurring rectangle when requiring that lighting angle is little.Reason is: through lens after light sends from light source, intermediate rays is more concentrated, and when light reflects to both sides, middle light intensity also can by force, if when both direction lighting angle is more or less the same, and the ellipse light spot often of formation.
Another kind of lens are under the condition of lens and dimension of light source conditions permit, and can be close to 0 ° of lighting angle through lens forming, then light reflects to different directions through upper surface, finally forms rectangular light spot, and this type of lens technologies requires higher.Because first low-angle lens forming needs a lot of restrictive condition, dimension of light source enough relative to lens hour ability forms smaller angle lens.In actual conditions.The size of lens and the size of light source have a lot of limiting factor, do not reach the condition being formed and be close to 0 ° of lens.
Utility model content
The utility model is intended to solve one of technical problem in correlation technique at least to a certain extent.For this reason, the purpose of this utility model is to propose a kind of LED lens, and the dimensional requirement of these LED lens to the size of lens and light source is not high, easily realizes the hot spot forming similar rectangle.
According to LED lens of the present utility model, comprise: light collecting part, the perisporium of described light collecting part is fully reflecting surface, and the diapire of described light collecting part is provided with the groove being suitable for placing light source to being recessed on, the perisporium of described groove forms first plane of incidence, and the roof of described groove forms second plane of incidence; Astigmatism portion, described astigmatism portion is located at the top of described light collecting part, the upper surface in described astigmatism portion is provided with multiple light exit portion raised up, described multiple smooth exit portion is connected with each other the exit facet limiting general rectangular, and wherein each described smooth exit portion is projected as the rhombus that four edges concaves on the upper surface in described astigmatism portion.
According to LED lens of the present utility model, the hot spot of similar rectangle can be generated more easily, and to the size of LED lens and dimension of light source less demanding.
Following additional technical characteristic can also be had according to LED lens of the present utility model.
According to an embodiment of the present utility model, described groove is rotary structure.
According to an embodiment of the present utility model, described second plane of incidence is the curved surface protruded downwards.Thus, make light via second plane of incidence to converges, improve the uniformity of hot spot.
According to an embodiment of the present utility model, the cross-sectional area of described groove reduces gradually on direction from top to bottom.
According to an embodiment of the present utility model, described light collecting part is rotary structure.
According to an embodiment of the present utility model, the cross-sectional area of described light collecting part increases gradually on direction from top to bottom.Thus, light is inwardly assembled, improve the brightness of hot spot at least to a certain extent.
According to an embodiment of the present utility model, two diagonal of each described smooth exit portion are curve, and the angle of inclination of the mid portion of described curve is less than the angle of inclination of two ends of described curve.
Utility model is according to an embodiment of the present utility model, and the top of each described smooth exit portion is curved surface protruding upward.
According to an embodiment of the present utility model, described LED lens are PC part or PMMA part.Thus, under the prerequisite ensureing LED lens clarity, simplify the difficulty of processing of LED lens, and LED lens wearability and electric insulating quality are improved.
Additional aspect of the present utility model and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present utility model.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present utility model and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:
Fig. 1 is the side sectional view of the LED lens according to the utility model embodiment;
Fig. 2 is the stereogram of the LED lens according to the utility model embodiment;
Fig. 3 is the beam projecting schematic diagram of the LED lens according to the utility model embodiment;
Fig. 4 is the schematic perspective view of the light exit portion according to the utility model embodiment;
Fig. 5 is the top view of the light exit portion according to the utility model embodiment;
Fig. 6 is the side view of the light exit portion according to the utility model embodiment;
Fig. 7 is the side view at another visual angle of light exit portion according to the utility model embodiment;
Fig. 8 is the hot spot figure simulating formation according to the LED lens of the utility model embodiment in software environment.
Reference numeral: LED lens 100, light collecting part 1, astigmatism portion 2, fully reflecting surface 11, first plane of incidence 12, second plane of incidence 13, astigmatism portion 2, light exit portion 211, exit facet 21, diagonal 210, cavity 101, groove 102.
Detailed description of the invention
Be described below in detail embodiment of the present utility model, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the utility model, and can not be interpreted as restriction of the present utility model.
In description of the present utility model, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " clockwise ", " counterclockwise ", " axis ", " radial direction ", orientation or the position relationship of the instruction such as " circumference " are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise at least one this feature.In description of the present utility model, the implication of " multiple " is at least two, such as two, three etc., unless otherwise expressly limited specifically.
In the utility model, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or integral; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements, unless otherwise clear and definite restriction.For the ordinary skill in the art, the concrete meaning of above-mentioned term in the utility model can be understood as the case may be.
In the utility model, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be that the first and second features directly contact, or the first and second features are by intermediary mediate contact.And, fisrt feature second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or only represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " below " and " below " can be fisrt feature immediately below second feature or tiltedly below, or only represent that fisrt feature level height is less than second feature.
Referring to Fig. 1 to Fig. 8, the LED lens 100 according to the utility model embodiment are described in detail.
According to the LED lens 100 of the utility model embodiment, can comprise: light collecting part 1 and astigmatism portion 2.
Wherein, as shown in Figure 1 to Figure 3, light collecting part 1 is entity, the perisporium of light collecting part 1 is fully reflecting surface 11, and light collecting part 1 is optically denser medium relative to the air in the external world, and light from light collecting part 1(namely, optically denser medium) the directive external world air (namely, optically thinner medium) time, light can not reflect, but all reflects back in light collecting part 1.
As shown in Figure 1 to Figure 3, the diapire of light collecting part 1 is provided with the groove 102 being suitable for placing light source to being recessed on, and this light source can be LED light source, but is not limited thereto, and light source can be the area source of rounded face light source or other shapes simultaneously.
With reference to shown in Fig. 1, the perisporium of groove 102 forms first plane of incidence 12, and the roof of groove 102 forms second plane of incidence 13.Light can enter in light collecting part 1 through first plane of incidence 12 and second plane of incidence 13.
Particularly, a part of light sent from light source arrives fully reflecting surface 11 through the refraction of first plane of incidence 12, changes the direction of light, make the upwards outgoing of most light through total reflection effect.Another part light reflects through second plane of incidence 13, makes light directly to upper outgoing.Thus, light collecting part 1 changes the angle of light, and the light that light source is sent obtains gathering to a certain extent.
As shown in Figure 1 to Figure 3, astigmatism portion 2 is located at the top of light collecting part 1, and say as above-mentioned, light collecting part 1 is entity, light in light collecting part 1 after total reflection, can from astigmatism portion 2 outgoing.
As shown in Figure 2, the upper surface in astigmatism portion 2 is provided with multiple light exit portion 211 raised up, and multiple smooth exit portion 211 is connected with each other the exit facet 21 limiting general rectangular.That is, exit facet 21 is not the level and smooth curved surface of a monoblock, but is spliced by multiple little lens unit (that is, light exit portion 211).
Particularly, as shown in Figure 5, the upper surface of each smooth exit portion 211 in astigmatism portion 2 be projected as the rhombus that four edges concaves.Namely, the shape of the bottom surface of each smooth exit portion 211 is rhombus, and the four edges of the bottom surface of each smooth exit portion 211 inwardly concaves, and the upper surface of each smooth exit portion 211 raises up and is the curved surface of rounding off.
Describe the forming process of rectangular light spot with reference to the accompanying drawings in detail.
As shown in Figure 3, after light source emits beam, a part of light through first plane of incidence 12 to be refracted to light collecting part 1 inner, light, through the total reflection effect of fully reflecting surface 11, changes direction upwards via exit facet 21 outgoing.Another part light enters into after in light collecting part 1 directly by exit facet 21 outgoing after second plane of incidence 13 reflects.Because exit facet 21 is made up of multiple light exit portion 211 with special tectonic, light is after the bottom incidence of light exit portion 211, and light exit portion 211 can by light to off-diagonal directional divergence, the final hot spot forming similar rectangle.
According to the LED lens 100 of the utility model embodiment, by the light collection of light collecting part 1 by light source, then after the exit facet 21 be made up of multiple smooth exit portion 211, form the hot spot of similar rectangle, light source via these LED lens 100 more easily generates the hot spot of similar rectangle, and to the size of LED lens 100 and dimension of light source less demanding.
In specific embodiments more of the present utility model, as shown in Figure 1 to Figure 3, groove 102 is formed as rotary structure.
Further, the cross-sectional area of groove 102 reduces gradually on direction from top to bottom.
In embodiments more of the present utility model, as shown in figures 1 and 3, second plane of incidence 13 is formed as the curved surface of protrusion downwards.Thus, make light via second plane of incidence 13 to converges, improve the uniformity of hot spot.
In examples more of the present utility model, as shown in Figure 1 to Figure 3, light collecting part 1 is formed as rotary structure.Further, as shown in figures 1 and 3, the cross-sectional area of light collecting part 1 increases gradually on direction from top to bottom.Alternatively, light collecting part 1 can be configured to up big and down small round platform.Thus, light is inwardly assembled, improve the brightness of hot spot at least to a certain extent.
In embodiments more of the present utility model, as shown in Figures 4 to 7, two diagonal 210 of each smooth exit portion 211 are curve, and the angle of inclination of the mid portion of curve is less than the angle of inclination of two ends of curve.
Specifically, the mid portion of every bar diagonal 210 is less than the angle of inclination of end relative to the upper surface in astigmatism portion 2 of every bar diagonal 210 relative to the angle of inclination of the upper surface in astigmatism portion 2.That is, the mid portion of two diagonal 210 is relatively mild, and the end of two diagonal 210 is relatively steep.
According to concrete examples more of the present utility model, as shown in figures 1 and 3, fully reflecting surface 11 is formed as the curved surface of evagination.The periphery wall (that is, fully reflecting surface 11) of light collecting part 1 is the face of protruding towards the direction (that is, outer direction) as shown in Figure 1 away from groove 102.Thus, the ability that light is inwardly assembled by fully reflecting surface 11 is further increased.
In embodiments more of the present utility model, as Fig. 4, Fig. 6 and Fig. 7 and shown in composition graphs 1, the top surface of each smooth exit portion 211 is the curved surface raised up.Say as above-mentioned, the upper surface in astigmatism portion 2 is provided with multiple smooth exit portion 211, the top surface of each smooth exit portion 211 (namely, upper surface as shown in Figure 1) curved surface for raising up, the basal surface of each smooth exit portion 211 is plane, the upper surface in multiple plane and astigmatism portion 2 fits together, and multiple curved surface raised up constitutes exit facet 21.
In examples more of the present utility model, LED lens 100 be PC(namely, Merlon) part or PMMA(namely, polymethyl methacrylate) part.Thus, under the prerequisite ensureing LED lens 100 transparency, simplify the difficulty of processing of LED lens 100, and LED lens 100 wearability and electric insulating quality are improved.
Certainly, in this example the Material selec-tion of LED lens 100 be one preferred embodiment, designer can select the material of LED lens 100 according to actual needs.
In the description of this description, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present utility model or example.In this manual, to the schematic representation of above-mentioned term not must for be identical embodiment or example.And the specific features of description, structure, material or feature can combine in one or more embodiment in office or example in an appropriate manner.In addition, when not conflicting, the feature of the different embodiment described in this description or example and different embodiment or example can carry out combining and combining by those skilled in the art.
Although illustrate and described embodiment of the present utility model above, be understandable that, above-described embodiment is exemplary, can not be interpreted as restriction of the present utility model, those of ordinary skill in the art can change above-described embodiment, revises, replace and modification in scope of the present utility model.
Claims (9)
1. LED lens, is characterized in that, comprising:
Light collecting part, the perisporium of described light collecting part is fully reflecting surface, and described fully reflecting surface is the curved surface of evagination, and the diapire of described light collecting part is provided with the groove being suitable for placing light source to being recessed on, the perisporium of described groove forms first plane of incidence, and the roof of described groove forms second plane of incidence;
Astigmatism portion, described astigmatism portion is located at the top of described light collecting part, the upper surface in described astigmatism portion is provided with multiple light exit portion raised up, described multiple smooth exit portion is connected with each other the exit facet limiting general rectangular, and wherein each described smooth exit portion is projected as the rhombus that four edges concaves on the upper surface in described astigmatism portion.
2. LED lens according to claim 1, is characterized in that, described groove is rotary structure.
3. LED lens according to claim 1, is characterized in that, described second plane of incidence is the curved surface protruded downwards.
4. LED lens according to claim 2, is characterized in that, the cross-sectional area of described groove reduces gradually on direction from top to bottom.
5. LED lens according to claim 1, is characterized in that, described light collecting part is rotary structure.
6. LED lens according to claim 5, is characterized in that, the cross-sectional area of described light collecting part increases gradually on direction from top to bottom.
7. LED lens according to claim 1, is characterized in that, two diagonal of each described smooth exit portion are curve, and the angle of inclination of the mid portion of described curve is less than the angle of inclination of two ends of described curve.
8. LED lens according to claim 1, is characterized in that, the top of each described smooth exit portion is curved surface protruding upward.
9. LED lens according to claim 1, is characterized in that, described LED lens are PC part or PMMA part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420594847.2U CN204227312U (en) | 2014-10-15 | 2014-10-15 | Led lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420594847.2U CN204227312U (en) | 2014-10-15 | 2014-10-15 | Led lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204227312U true CN204227312U (en) | 2015-03-25 |
Family
ID=52925401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420594847.2U Withdrawn - After Issue CN204227312U (en) | 2014-10-15 | 2014-10-15 | Led lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204227312U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105570832A (en) * | 2014-10-15 | 2016-05-11 | 比亚迪股份有限公司 | Led lens |
| CN106443846A (en) * | 2016-12-26 | 2017-02-22 | 京东方科技集团股份有限公司 | Lens, manufacturing method of lens, backlight panel and display device |
| CN110469822A (en) * | 2018-05-10 | 2019-11-19 | 惠州雷士光电科技有限公司 | A kind of low-angle TIR lens system |
| CN110469822B (en) * | 2018-05-10 | 2024-05-03 | 惠州雷士光电科技有限公司 | Small-angle TIR lens system |
-
2014
- 2014-10-15 CN CN201420594847.2U patent/CN204227312U/en not_active Withdrawn - After Issue
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105570832A (en) * | 2014-10-15 | 2016-05-11 | 比亚迪股份有限公司 | Led lens |
| CN105570832B (en) * | 2014-10-15 | 2019-05-17 | 比亚迪股份有限公司 | LED lens |
| CN106443846A (en) * | 2016-12-26 | 2017-02-22 | 京东方科技集团股份有限公司 | Lens, manufacturing method of lens, backlight panel and display device |
| CN106443846B (en) * | 2016-12-26 | 2018-05-08 | 京东方科技集团股份有限公司 | Lens and preparation method thereof, backlight panel and display device |
| US11156870B2 (en) | 2016-12-26 | 2021-10-26 | Boe Technology Group Co., Ltd. | Lens and manufacturing method thereof, backlight panel and display device |
| CN110469822A (en) * | 2018-05-10 | 2019-11-19 | 惠州雷士光电科技有限公司 | A kind of low-angle TIR lens system |
| CN110469822B (en) * | 2018-05-10 | 2024-05-03 | 惠州雷士光电科技有限公司 | Small-angle TIR lens system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150325 Effective date of abandoning: 20190517 |