CN203800082U - TIR lens device - Google Patents
TIR lens device Download PDFInfo
- Publication number
- CN203800082U CN203800082U CN201420079624.2U CN201420079624U CN203800082U CN 203800082 U CN203800082 U CN 203800082U CN 201420079624 U CN201420079624 U CN 201420079624U CN 203800082 U CN203800082 U CN 203800082U
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- CN
- China
- Prior art keywords
- tir
- main element
- light
- flourescent sheet
- lens devices
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- 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.)
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Abstract
The utility model provides a TIR lens device comprising a TIR main body part which is provided with a first end, a second end which is opposite to the first end, and an external surface. The TIR main body part is symmetrical about an optical axis. The external surface presents to be bowl-shaped so that the position, which is at the second end, of the TIR main body part is wider than the position, which is at the first end, of the TIR main body part. Total internal reflection is provided by the bowl shape so that Light from light sources near the first end is guided to the second end. The TIR lens device is also provided with a fluorescent sheet which is arranged at the second end of the TIR main body part and integrated with the TIR main body part. Compared with devices in the prior art, the TIR lens device is relatively high in light transmittance, and uniform in emergent light spot chroma without reduction of light transmittance due to atomization processing on the surface of the lens in the prior art.
Description
Technical field
The utility model relates to lighting field, relates in particular to a kind of TIR(total internal reflection) lens devices.
Background technology
Along with LED(Light-Emitting Diode, light-emitting diode) industry develops rapidly, emerged in large numbers in the world a lot of LED manufacturing enterprises, but uneven due to encapsulation technology level, also there is the gap of quality in the LED lamp pearl of finished product, the colourity that is accompanied by LED product is inhomogeneous, the separation of gold-tinted blue light, brought very large resistance to the development of LED illuminating product, a lot of products have no alternative but to reach the even of colourity by reducing the light efficiency of product.
, all there is the phenomenon of some dispersions in the LED lamp pearl of low-end market of the prior art, is exactly that chip surface sprayed with fluorescent powder is inhomogeneous caused.The light that this type of LED lamp pearl sends is through the luminous intensity distribution of lens, and the hot spot of being up to has more significantly dispersion phenomenon.
In order to eliminate above-mentioned defect, existing technology adds cloudy surface exactly on lens exiting surface, can play like this effect that weakens dispersion, but can reduce the light transmittance of lens.And atomized surface effect is heavier, photochromic uniformity is better, and light transmittance is lower.
Therefore, be necessary defect of the prior art to make further improvements.
Utility model content
The purpose of this utility model is to provide that a kind of light transmittance is higher, the uniform TIR lens devices of colourity.
For reaching aforementioned object, a kind of TIR lens devices of the utility model, it comprises TIR main element, described TIR main element has first end, second end and the outer surface contrary with described first end, described TIR main element is about symmetrical, and described outer surface has bowl shape, makes described TIR main element wider than first end place at the second end place, described bowl shape provides total internal reflection, with near the photoconduction of the light source described first end to the second end; And
Flourescent sheet, its be arranged on described TIR main element the second end and with described TIR main element be one.
According to a preferred embodiment of the present utility model, described flourescent sheet has the width equating with the second end width of described TIR main element in the direction perpendicular to described optical axis.
According to a preferred embodiment of the present utility model, described flourescent sheet has the less width of the second end width than described TIR main element in the direction perpendicular to described optical axis.
According to a preferred embodiment of the present utility model, along on described optical axis direction, described flourescent sheet thickness is 1mm-2mm.
According to a preferred embodiment of the present utility model, light source is arranged near the first end of described TIR main element.
According to a preferred embodiment of the present utility model, described light source is blue-light LED chip.
According to a preferred embodiment of the present utility model, the PC(Merlon that described TIR main element is transparence) or PMMA(polymethyl methacrylate) lens, described flourescent sheet is PC or the PMMA plate that has added fluorescent material.
According to a preferred embodiment of the present utility model, the concentration of the described fluorescent material in described flourescent sheet is higher, and lower from the colour temperature of the light of described flourescent sheet outgoing, rising angle is larger.
Beneficial effect: compared with prior art, TIR lens devices of the present utility model, when adopting blue-light LED chip, on chip, do not need sprayed with fluorescent powder, the blue light being sent by chip, through the TIR main part of transparence, plays the effect of converging light, then pass through flourescent sheet, thereby blue-light excited fluorescent material produces the uniform light of colourity, and the colourity that can realize outgoing hot spot is even, and can because processing, lens surface atomization not reduce as prior art light transmittance.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model TIR lens devices.
Fig. 2 is the cutaway view of Fig. 1.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Alleged " embodiment " or " embodiment " refers to special characteristic, structure or the characteristic that can be contained at least one implementation of the utility model herein.Different local in this manual " in one embodiment " that occur not all refer to same embodiment, neither be independent or the embodiment mutually exclusive with other embodiment optionally.
Refer to Fig. 1, it is the structural representation of the utility model TIR lens devices.Described TIR lens devices 100 comprises that TIR main element 110, flourescent sheet 120 and light source 130(are not shown).
Described TIR main element 110 has first end 111, second end 112 and the outer surface 113 contrary with described first end 111, described TIR main element 110 is about optical axis 114 symmetries, described outer surface 113 has bowl shape, make described TIR main element 110 wider than first end 111 places at the second end 112 places, described bowl shape provides total internal reflection, with near the photoconduction of the light source from described first end 111 to the second end 112.
Flourescent sheet 120, its be arranged on described TIR main element 110 the second end 112 and with described TIR main element 110 are one.In the utility model, described flourescent sheet 120 is integrated machine-shaping with TIR main element 110.In one embodiment, described flourescent sheet 120 has the width equating with the wide diameter of described TIR main element 110 on perpendicular to described optical axis 114 directions.In another embodiment, described flourescent sheet 120 has the less width of the second end 112 width than described TIR main element 110 in the direction perpendicular to described optical axis 114, so not only can save material, and also can guarantee can all pass through flourescent sheet from the light of described TIR main element 110 reflections.
Refer to Fig. 2, its cutaway view that is Fig. 1.Described light source 130 is arranged near the first end 111 of described TIR main element 110, and wherein, described light source 130 is blue-light LED chip.In the utility model, on described LED chip, do not need to apply fluorescent material.
In this embodiment, along in described optical axis 114 directions, described flourescent sheet 120 thickness are 1mm-2mm, in other embodiments, can need to set the thickness of described flourescent sheet according to actual conditions.The blue light sending when described LED chip 130 is after the gathering of TIR main element 110, then pass through the blue-light excited fluorescent material of flourescent sheet 120, thereby produce the uniform light of colourity, the colourity that can realize outgoing hot spot is even, and can as prior art, because lens surface atomization processes, not reduce light transmittance, flourescent sheet 120 of the present utility model can guarantee out that photochromism is more even.
In this embodiment, the PC(Merlon that described TIR main element 110 is transparence) or PMMA(polymethyl methacrylate) lens.Wherein, Merlon tool high strength and coefficient of elasticity, high impact, serviceability temperature scope are wide, heigh clarity, and electrical characteristic is excellent, and refractive index is high.Polymethyl methacrylate, is commonly called as polymethyl methacrylate, is to synthesize up to now the most excellent kind of quality in transparent material.In this embodiment, described flourescent sheet 120 is for having added PC or the PMMA plate of fluorescent material, and the concentration of the fluorescent material in described flourescent sheet 120 is higher, and lower from the colour temperature of the light of flourescent sheet 120 outgoing, rising angle is larger, and light extraction efficiency is higher.Wherein, the concrete technology of flourescent sheet can need to determine according to actual conditions.
TIR lens devices of the present utility model, when adopting blue-light LED chip, on chip, do not need sprayed with fluorescent powder, the blue light being sent by chip is through the TIR main part of transparence, play the effect of converging light, then pass through flourescent sheet, thereby blue-light excited fluorescent material produces the uniform light of colourity, the colourity that can realize outgoing hot spot is even, and can because lens surface atomization processes, not reduce as prior art light transmittance.
Above-mentioned explanation has fully disclosed embodiment of the present utility model.It is pointed out that being familiar with any change that person skilled in art does embodiment of the present utility model does not all depart from the scope of claims of the present utility model.Correspondingly, the scope of claim of the present utility model is also not limited only to previous embodiment.
Claims (7)
1. a TIR lens devices, is characterized in that: it comprises:
TIR main element, described TIR main element has first end, second end and the outer surface contrary with described first end, described TIR main element is about symmetrical, described outer surface has bowl shape, make described TIR main element wider than first end place at the second end place, described bowl shape provides total internal reflection, with near the photoconduction of the light source described first end to the second end; And
Flourescent sheet, its be arranged on described TIR main element the second end and with described TIR main element be one.
2. TIR lens devices according to claim 1, is characterized in that: described flourescent sheet has the width equating with the second end width of described TIR main element in the direction perpendicular to described optical axis.
3. TIR lens devices according to claim 1, is characterized in that: described flourescent sheet has the less width of the second end width than described TIR main element in the direction perpendicular to described optical axis.
4. TIR lens devices according to claim 1, is characterized in that: along on described optical axis direction, described flourescent sheet thickness is 1mm-2mm.
5. TIR lens devices according to claim 1, is characterized in that: described light source is arranged near the first end of described TIR main element.
6. TIR lens devices according to claim 5, is characterized in that: described light source is blue-light LED chip.
7. TIR lens devices according to claim 1, is characterized in that: the PC (Merlon) that described TIR main element is transparence or PMMA (polymethyl methacrylate) lens, described flourescent sheet is PC or PMMA plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420079624.2U CN203800082U (en) | 2014-02-25 | 2014-02-25 | TIR lens device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420079624.2U CN203800082U (en) | 2014-02-25 | 2014-02-25 | TIR lens device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203800082U true CN203800082U (en) | 2014-08-27 |
Family
ID=51382275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420079624.2U Expired - Fee Related CN203800082U (en) | 2014-02-25 | 2014-02-25 | TIR lens device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203800082U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105042510A (en) * | 2015-07-31 | 2015-11-11 | 马瑞利汽车零部件(芜湖)有限公司 | LED optical lens |
-
2014
- 2014-02-25 CN CN201420079624.2U patent/CN203800082U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105042510A (en) * | 2015-07-31 | 2015-11-11 | 马瑞利汽车零部件(芜湖)有限公司 | LED optical lens |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20171023 Address after: 215000 3 Building 8, Stone Hill Road, Dongshan Town, Dongshan Town, Suzhou, Wuzhong District, Jiangsu Patentee after: Suzhou East Photoelectric Technology Co., Ltd. Address before: 215107 No. 8 Fenghuang Mountain Road, Dongshan Industrial Park, Suzhou, Jiangsu, Wuzhong District Patentee before: Suzhou Dongshan Precision Manufacturing Co., Ltd. |
|
| 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: 20140827 Termination date: 20190225 |