CN102590899A - Light equalizing lens - Google Patents
Light equalizing lens Download PDFInfo
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- CN102590899A CN102590899A CN2011100038486A CN201110003848A CN102590899A CN 102590899 A CN102590899 A CN 102590899A CN 2011100038486 A CN2011100038486 A CN 2011100038486A CN 201110003848 A CN201110003848 A CN 201110003848A CN 102590899 A CN102590899 A CN 102590899A
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- equal
- optical lens
- protuberance
- light
- transparent body
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Abstract
The invention relates to a light equalizing lens, which comprises a solid transparent body, wherein the solid transparent body comprises an incident surface and an emergent surface corresponding to the incident surface. The incident surface is parallel to the emergent surface, and a plurality of first bumps are arranged uniformly on the incident surface. The top surface of each first bump is a convexly arc-shaped surface. By adopting the first bumps arranged uniformly on the incident surface, the invention can effectively perform light equalization aiming at the lights emitted by a regional light source formed by a plurality of point light source arrays so as to obtain an area light source with uniform light intensity.
Description
Technical field
The present invention relates to a kind of equal optical lens, relate in particular to a kind of uniformly equal optical lens of light intensity that obtains.
Background technology
In like multiple optical devices such as apparatus for optical projection, requiring its light source is area source.In actual use, light source is generally the regional light source be made up of a plurality of pointolite array.This regional light source is similar to area source; But from microcosmic; The light that each pointolite sent of forming light source appears radial, so existence is a plurality of light concentrated area at center with each pointolite center the light area in, causes in the light area light intensity distributions inhomogeneous; Thereby need carry out equal polishing reason to this regional light source, to form the uniform face light beam of light intensity distributions in the light area.In the existing optical device; The general light that uses collector lens that the regional light source of being made up of a plurality of pointolite arrays is launched carries out equal optical processing; Known collector lens is convex lens; The exiting surface that is lens is the arcwall face of evagination, and its incidence surface covers all pointolite distribution ranges of said regional light source.The light of each pointolite emission is gathered into light beam through the refraction of collector lens exiting surface.Though this collector lens has played equal polishing reason effect through collected light, because behind the planoconvex lens optically focused, the light area diminishes, unfavorable formation light intensity uniform surface light source.
Summary of the invention
The object of the present invention is to provide a kind of equal optical lens, it can carry out equal polishing reason to the light that the regional light source that a plurality of pointolite arrays are formed is launched, to obtain the light intensity uniform surface light source.
In order to achieve the above object; The present invention provides a kind of equal optical lens; It comprises: a solid transparent body, and wherein this solid transparent body has an incidence surface and an exiting surface corresponding to this incidence surface, and this incidence surface is parallel to this exiting surface; Uniform array has a plurality of first protuberances on this incidence surface, and the end face of each first protuberance is the arcwall face of an evagination.
Equal optical lens of the present invention, wherein this equal optical lens is along an optical axis setting, and the parallel sided of each first protuberance is in this optical axis.
Equal optical lens of the present invention, wherein the end face of this first protuberance is the arcwall face of a dome shape.
Equal optical lens of the present invention, wherein the thickness of this solid transparent body is more than or equal to 5 times of focal lengths of each first protuberance.
Equal optical lens of the present invention, wherein this equal optical lens is along an optical axis setting, and the lateral margin face of this solid transparent body is parallel to this optical axis.
Equal optical lens of the present invention, wherein uniform array has a plurality of second protuberances on this exiting surface.
Equal optical lens of the present invention, wherein this equal optical lens is along an optical axis setting, and the parallel sided of each second protuberance is in this optical axis.
Equal optical lens of the present invention, wherein per two adjacent first protuberances of this incidence surface are close to each other, and per two adjacent second protuberances of this exiting surface are close to each other.
Equal optical lens of the present invention, wherein the end face of this second protuberance is the arcwall face of a dome shape.
Equal optical lens of the present invention, wherein the thickness of this solid transparent body is more than or equal to 5 times of focal lengths of each second protuberance.
Equal optical lens of the present invention, wherein the end face of this second protuberance is the arcwall face of a dome shape.
In sum; The equal optical lens that the embodiment of the invention provided; It has the use of a plurality of first protuberances via uniform array on this incidence surface, and the light that the regional light source that can effectively form to a plurality of pointolite arrays launched carries out equal polishing reason, to obtain the light intensity uniform surface light source.
For enabling further to understand characteristic of the present invention and technology contents, as following about detailed description of the present invention and accompanying drawing, yet appended graphic only provide reference and the explanation usefulness, be not to be used for the present invention is limited.
Description of drawings
Fig. 1 is the schematic perspective view of the equal optical lens of one embodiment of the invention;
Fig. 2 is the enlarged diagram of A part among Fig. 1;
Fig. 3 is the diagrammatic cross-section of the equal optical lens of one embodiment of the invention;
Fig. 4 is the diagrammatic cross-section of the equal optical lens of the other embodiment of the present invention.
The main element symbol description
Equal optical lens 1 solid transparent body 10
Exiting surface 12
First protuberance, 2 end faces 21
Second protuberance, 2 ' end face 21 '
Side 22 '
Optical axis X
Embodiment
To shown in Figure 3, one embodiment of the invention provides a kind of equal optical lens 1 like Fig. 1, and it can be solid transparent body 10.Solid transparent body 10 has incidence surface 11 and corresponding to the exiting surface 12 of incidence surface 11, incidence surface 11 can be parallel to exiting surface 12.But uniform array has a plurality of first protuberances 2 (for example salient point) on the incidence surface 11, and the end face 21 of each first protuberance 2 can be the arcwall face of evagination.
The present invention can be installed in the optical device.In the course of the work; The light that the regional light source of being made up of a plurality of pointolite arrays (figure does not show) is launched is from the end face 21 incident solid transparent bodies 10 of first protuberance 2; The arc top surface 21 of each first protuberance 2 is assembled the light of incident respectively and is realized equal polishing reason, makes the light intensity distributions in the light area of area source even.Because exiting surface 12 is parallel to incidence surface 11, all optical lens 1 does not produce congregational rate to the light of regional light emitted on the whole, thereby can not reduce the light area, helps forming the light intensity distributions uniform surface light source again.
Like Fig. 1 and shown in Figure 2, all optical lens 1 is provided with along an optical axis X, and the side 22 of each first protuberance 2 can be parallel to optical axis X, so can reduce light and reflect the optical loss that is caused via side 22 from first protuberance 2.As shown in Figure 3; But on the exiting surface 12 also uniform array a plurality of second protuberances 2 ' (it also has end face 21 ' and side 22 ') are arranged; After then light carries out equal polishing reason via each first protuberance 2 of incidence surface 11; Each second protuberance 2 ' via exiting surface 12 carries out secondary equal polishing reason again, has therefore further improved equal light effect, makes the light intensity distributions in the irradiation area more even.
Like Fig. 1 and shown in Figure 2, preferably, per two adjacent first protuberances 2 of incidence surface 11 are close to each other, and per two adjacent second protuberances 2 ' of exiting surface 12 are close to each other.This has guaranteed that light will be gathered by end face 21, and because side 22 is parallel to the light ray propagation direction of optical axis X, so dull thread is come in and gone out, has reduced light loss here.Preferably, the end face 21 of first protuberance 2 (or second protuberance 2 ') can be the arcwall face of dome shape, and the each point incident angle of each first protuberance 2 (or each second protuberance 2 ') has further improved equal light effect with difference like this.In addition, the lateral margin face 13 of solid transparent body 10 is parallel to optical axis X.This is identical with the principle that the side 22 of first protuberance 2 is parallel to optical axis X, and work like this can reduce light and reflect the optical loss that solid transparent body 10 is caused via lateral margin face 13.In addition; The thickness of solid transparent body 10 is more than or equal to 5 times of focal lengths of each first protuberance 2 (or each second protuberance 2 '); To interfere each other when the light beam of being put in order by each first protuberance 2 (or each second protuberance 2 ') is like this propagated in solid transparent body 10, so further improved equal light effect.
See also shown in Figure 4ly, the other embodiment of the present invention also provides a kind of equal optical lens 1, and it can be solid transparent body 10.Solid transparent body 10 has incidence surface 11 and corresponding to the exiting surface 12 of incidence surface 11, incidence surface 11 can be parallel to exiting surface 12.But uniform array has a plurality of first protuberances 2 (for example salient point) on the incidence surface 11; The end face 21 of each first protuberance 2 can be the arcwall face of evagination, and the side 22 of each first protuberance 2 can be used for reducing light and reflects the optical loss that is caused via side 22 from first protuberance 2.Comparison by Fig. 4 and Fig. 3 can be known; The maximum difference of an other embodiment of the present invention and an above-mentioned embodiment is: the other embodiment of the present invention omits a plurality of second protuberances 2 ' and a plurality of first protuberances 2 only is provided; Yet the other embodiment of the present invention still can reach the identical effect with an above-mentioned wherein embodiment under the situation of only using a plurality of first protuberances 2.For example: the thickness of solid transparent body 10 will be interfered when the light beam of being put in order by each first protuberance 2 is like this propagated in solid transparent body 10 more than or equal to 5 times of focal lengths of each first protuberance 2 each other, has so further improved equal light effect.
In other words, the present invention can be according to different user demands, and optionally " use cooperate (as shown in Figure 3) of a plurality of first protuberances 2 and a plurality of second protuberances 2 ' " or " only using a plurality of first protuberances 2 (as shown in Figure 4) ".
In sum, the beneficial effect that the embodiment of the invention is possible is: the arc top surface of each protuberance (first or second protuberance) is assembled the light of incident respectively and is realized equal polishing reason, makes the light intensity distributions in the light area of area source even.Because exiting surface is parallel to incidence surface, helps forming the light intensity distributions uniform surface light source.The parallel sided of each protuberance (first or second protuberance) so can reduce light and reflect the optical loss that is caused via the side from protuberance (first or second protuberance) in optical axis.The lateral margin face of solid transparent body is parallel to optical axis, reflects the optical loss that the solid transparent body is caused to reduce light via the lateral margin face.
The above only is a preferred embodiments of the present invention, so all equivalences of doing according to the described structure of claim of the present invention, characteristic and principle change or modify, includes in protection domain of the present invention.
Claims (15)
1. equal optical lens; It is characterized in that; Comprise: a solid transparent body, wherein this solid transparent body has an incidence surface and an exiting surface corresponding to this incidence surface, and this incidence surface is parallel to this exiting surface; Uniform array has a plurality of first protuberances on this incidence surface, and the end face of each first protuberance is the arcwall face of an evagination.
2. equal optical lens as claimed in claim 1 is characterized in that, this equal optical lens is along an optical axis setting, and the parallel sided of each first protuberance is in this optical axis.
3. equal optical lens as claimed in claim 2 is characterized in that, the end face of this first protuberance is the arcwall face of a dome shape.
4. equal optical lens as claimed in claim 3 is characterized in that, the thickness of this solid transparent body is more than or equal to 5 times of focal lengths of each first protuberance.
5. equal optical lens as claimed in claim 4 is characterized in that, this equal optical lens is along an optical axis setting, and the lateral margin face of this solid transparent body is parallel to this optical axis.
6. equal optical lens as claimed in claim 2 is characterized in that, uniform array has a plurality of second protuberances on this exiting surface.
7. equal optical lens as claimed in claim 6 is characterized in that, this equal optical lens is along an optical axis setting, and the parallel sided of each second protuberance is in this optical axis.
8. equal optical lens as claimed in claim 7 is characterized in that, per two adjacent first protuberances of this incidence surface are close to each other, and per two adjacent second protuberances of this exiting surface are close to each other.
9. equal optical lens as claimed in claim 8 is characterized in that, the end face of this second protuberance is the arcwall face of a dome shape.
10. equal optical lens as claimed in claim 9 is characterized in that, the thickness of this solid transparent body is more than or equal to 5 times of focal lengths of each second protuberance.
11. equal optical lens as claimed in claim 7 is characterized in that, the end face of this second protuberance is the arcwall face of a dome shape.
12. equal optical lens as claimed in claim 11 is characterized in that, the thickness of this solid transparent body is more than or equal to 5 times of focal lengths of each second protuberance.
13. equal optical lens as claimed in claim 1 is characterized in that, the end face of this first protuberance is the arcwall face of a dome shape.
14. equal optical lens as claimed in claim 13 is characterized in that, this equal optical lens is along an optical axis setting, and the lateral margin face of this solid transparent body is parallel to this optical axis.
15. equal optical lens as claimed in claim 14 is characterized in that, the thickness of this solid transparent body is more than or equal to 5 times of focal lengths of each first protuberance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100038486A CN102590899A (en) | 2011-01-04 | 2011-01-04 | Light equalizing lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100038486A CN102590899A (en) | 2011-01-04 | 2011-01-04 | Light equalizing lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102590899A true CN102590899A (en) | 2012-07-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100038486A Pending CN102590899A (en) | 2011-01-04 | 2011-01-04 | Light equalizing lens |
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| CN (1) | CN102590899A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108136199A (en) * | 2015-07-28 | 2018-06-08 | 光子医疗设备公司 | For the phototherapy apparatus of the treating skin disease of scalp |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5307207A (en) * | 1988-03-16 | 1994-04-26 | Nikon Corporation | Illuminating optical apparatus |
| CN1947053A (en) * | 2004-04-26 | 2007-04-11 | 翰兹-利索兹切科专利管理有限公司及两合公司 | Device and method for homogenizing optical beams |
| JP2010134345A (en) * | 2008-12-08 | 2010-06-17 | Toppan Printing Co Ltd | Light uniforming element, and back light unit and display device using the same |
| JP2010250987A (en) * | 2009-04-13 | 2010-11-04 | Toppan Printing Co Ltd | Light uniforming element, optical sheet, backlight unit and display device |
| CN201836810U (en) * | 2010-10-30 | 2011-05-18 | 东莞市松毅电子有限公司 | Even light lens |
-
2011
- 2011-01-04 CN CN2011100038486A patent/CN102590899A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5307207A (en) * | 1988-03-16 | 1994-04-26 | Nikon Corporation | Illuminating optical apparatus |
| CN1947053A (en) * | 2004-04-26 | 2007-04-11 | 翰兹-利索兹切科专利管理有限公司及两合公司 | Device and method for homogenizing optical beams |
| JP2010134345A (en) * | 2008-12-08 | 2010-06-17 | Toppan Printing Co Ltd | Light uniforming element, and back light unit and display device using the same |
| JP2010250987A (en) * | 2009-04-13 | 2010-11-04 | Toppan Printing Co Ltd | Light uniforming element, optical sheet, backlight unit and display device |
| CN201836810U (en) * | 2010-10-30 | 2011-05-18 | 东莞市松毅电子有限公司 | Even light lens |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108136199A (en) * | 2015-07-28 | 2018-06-08 | 光子医疗设备公司 | For the phototherapy apparatus of the treating skin disease of scalp |
| CN108136199B (en) * | 2015-07-28 | 2022-03-01 | 诺欧生物有限责任公司 | Phototherapy device for dermatological treatment of the scalp |
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Application publication date: 20120718 |