CN201936062U - Projector lens - Google Patents
Projector lens Download PDFInfo
- Publication number
- CN201936062U CN201936062U CN2011200441576U CN201120044157U CN201936062U CN 201936062 U CN201936062 U CN 201936062U CN 2011200441576 U CN2011200441576 U CN 2011200441576U CN 201120044157 U CN201120044157 U CN 201120044157U CN 201936062 U CN201936062 U CN 201936062U
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- CN
- China
- Prior art keywords
- eyeglass
- lens
- curvature radius
- prismatic glasses
- projector lens
- Prior art date
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Abstract
The utility model discloses a projector lens, which is combined by four lenses, namely, a first lens 1, as second lens 2, a third lens 3 and a fourth lens 4, wherein the first lens 1 and the second lens 2 are meniscus lenses, the third lens 3 is a double concave lens, the fourth lens 4 is a double convex lens, and the first lens 1, the second lens 2, the third lens 3 and the fourth lens 4 are arranged coaxially along the projection direction of light rays. As the lens is combined by the four glass lenses, F-number is small, the light use ratio is high, two LED light sources of an array module type and single combined type can be universally used, so that the projector lens both can be used for the array module type of large area light source system and single combined type of a plurality of LEDs, and the projector lens improves light transmitting ability and the brightness of the projected image.
Description
Technical field
The utility model relates to fields such as electronics, LED, photoelectron, electromechanics, particularly a kind of projector lens.
Background technology
Because the output size of projector lens luminous flux can directly have influence on the brightness of projector's output image, yet the light source of projector all adopts led light source at present, led light source has two kinds of array module type and single combined types, projector is in the occasion that needs high brightness output, just need to increase LED power to improve luminous flux, so just must increase the LED light-emitting area, perhaps use many single LED combination.The camera lens that at present domestic projector uses all is the three-chip type structure, promptly form by three blocks of glass sheet, focal length is between 100～260mm, focus distance, camera lens physics bore is at Φ 40～Φ about 85, camera lens F number is between F2.7～F4.0, such camera lens shortcoming is that its F number is too big, the light source luminescent area is had bigger restriction, to the module type light source, the light source area is after more than the 5*5mm, light utilization is low, and is not suitable for fully for single knockdown light source, thereby causes its logical luminous energy power limited, can not improve the output of projector light flux to greatest extent, make that its brightness of image that projects is very low.
The utility model content
The purpose of this utility model is to provide a kind of logical luminous energy power strong, the high projector lens of projects images brightness.
This projector lens that the utility model provides, four eyeglasses are adopted in the eyeglass combination, comprise first eyeglass, second eyeglass, prismatic glasses, the 4th eyeglass, described first eyeglass and second eyeglass are meniscus, described prismatic glasses is a biconcave lens, described the 4th eyeglass is a biconvex lens, and described first eyeglass, second eyeglass, prismatic glasses, the 4th eyeglass are along ray cast direction co-axial alignment.
The convex curvature radius of described first eyeglass is 77.95mm, the concave curvature radius is 291.07mm, the convex curvature radius of described second eyeglass is 75.58mm, the concave curvature radius is 107.43mm, the left concave curvature radius of described prismatic glasses is 343.37mm, right concave curvature radius is 65.715mm, and two convex curvature radiuses of described the 4th eyeglass are 146.89mm.The middle ware distance of described first eyeglass and second eyeglass is 0.5mm, the edge spacing is 9.514mm, the centre of described second eyeglass and prismatic glasses or 3 described projector lens, the clear aperature left end that it is characterized in that described first eyeglass is 95.88mm, right-hand member is 13.56mm for the 90.98mm spacing, the edge spacing is 4.115mm, and the middle ware of described prismatic glasses and the 4th eyeglass is apart from being 15.124mm, and the edge spacing is 12.812mm.The clear aperature left end of described second eyeglass is 80.32mm, and right-hand member is 73.42mm, and the clear aperature left end of described prismatic glasses is 64.7mm, and right-hand member is 61.507mm, and the clear aperature left end of described the 4th eyeglass is 79.56mm, and right-hand member is 82mm.The focal length of this camera lens is 197mm, and maximum caliber is 114mm, and the F number is 2.0, all can transmit the light in the outer 14 ° of angles of axle.
The utility model is owing to adopt the combination of four glass mirror, the F number is less, the light utilization height, array module type and two kinds of led light sources of single combined type can be general, the array module type that both can adapt to the large tracts of land light-source system, can be suitable for single combined type of plurality of LEDs again, the utility model has strengthened logical luminous energy power, the brightness that has improved its projects images.
Description of drawings
Fig. 1 is an eyeglass combination synoptic diagram of the present utility model.
Embodiment
Fig. 1 is an eyeglass combination synoptic diagram of the present utility model, as shown in the figure, four glass mirror are adopted in the eyeglass combination of the utility model camera lens, comprise first eyeglass 1, second eyeglass 2, prismatic glasses 3, the 4th eyeglass 4, first eyeglass 1, second eyeglass 2, prismatic glasses 3, the 4th eyeglass 4 is along ray cast direction co-axial alignment, the middle ware distance of first eyeglass 1 and second eyeglass 2 is 0.5mm, the edge spacing is 9.514mm, the middle ware distance of second eyeglass 2 and prismatic glasses 3 is 13.56mm, the edge spacing is 4.115mm, the middle ware of prismatic glasses 3 and the 4th eyeglass 4 is apart from being 15.124mm, and the edge spacing is 12.812mm.The clear aperature left end of first eyeglass 1 is 95.88mm, right-hand member is 90.98mm, the clear aperature left end of second eyeglass 2 is 80.32mm, right-hand member is 73.42mm, the clear aperature left end of prismatic glasses 3 is 64.7mm, right-hand member is 61.507mm, and the clear aperature left end of the 4th eyeglass 4 is 79.56mm, and right-hand member is 82mm.
First eyeglass 1 is a meniscus, its convex curvature radius is 77.95mm, the concave curvature radius is 291.07mm, and second eyeglass 2 is a meniscus, and its convex curvature radius is 75.58mm, the concave curvature radius is 107.43mm, described prismatic glasses 3 is a biconcave lens, and its left concave curvature radius is 343.37mm, and right concave curvature radius is 65.715mm, described the 4th eyeglass 4 is a biconvex lens, and two convex curvature radius is 146.89mm.Focal length of the present utility model is 197mm, and maximum caliber is 114mm, and the F number is 2.0, all can transmit the light in the outer 14 ° of angles of axle.
F number of the present utility model is less, the light utilization height, array module type and two kinds of led light sources of single combined type can be general, the array module type that both can adapt to the large tracts of land light-source system, can be suitable for single combined type of plurality of LEDs again, the utility model has strengthened logical luminous energy power, the brightness that has improved its projects images.
Claims (5)
1. projector lens, four eyeglasses are adopted in the eyeglass combination that it is characterized in that this projector lens, comprise first eyeglass (1), second eyeglass (2), prismatic glasses (3), the 4th eyeglass (4), described first eyeglass (1) and second eyeglass (2) are meniscus, described prismatic glasses (3) is a biconcave lens, described the 4th eyeglass (4) is a biconvex lens, and described first eyeglass (1), second eyeglass (2), prismatic glasses (3), the 4th eyeglass (4) are along ray cast direction co-axial alignment.
2. projector lens according to claim 1, the convex curvature radius that it is characterized in that described first eyeglass (1) is 77.95mm, the concave curvature radius is 291.07mm, the convex curvature radius of described second eyeglass (2) is 75.58mm, the concave curvature radius is 107.43mm, the left concave curvature radius of described prismatic glasses (3) is 343.37mm, and right concave curvature radius is 65.715mm, and two convex curvature radiuses of described the 4th eyeglass (4) are 146.89mm.
3. projector lens according to claim 1 and 2, it is characterized in that described first eyeglass (1) and the middle ware distance of second eyeglass (2) are 0.5mm, the edge spacing is 9.514mm, the centre or the 3 described projector lens of described second eyeglass (2) and prismatic glasses (3), the clear aperature left end that it is characterized in that described first eyeglass (1) is 95.88mm, right-hand member is 13.56mm for the 90.98mm spacing, the edge spacing is 4.115mm, described prismatic glasses (3) is 15.124mm with the middle ware distance of the 4th eyeglass (4), and the edge spacing is 12.812mm.
4. projector lens according to claim 1 and 2, the clear aperature left end that it is characterized in that described second eyeglass (2) is 80.32mm, right-hand member is 73.42mm, the clear aperature left end of described prismatic glasses (3) is 64.7mm, right-hand member is 61.507mm, the clear aperature left end of described the 4th eyeglass (4) is 79.56mm, and right-hand member is 82mm.
5. projector lens according to claim 1 and 2, the focal length that it is characterized in that this camera lens is 197mm, and maximum caliber is 114mm, and the F number is 2.0, all can transmit the light in the outer 14 ° of angles of axle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200441576U CN201936062U (en) | 2011-02-22 | 2011-02-22 | Projector lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200441576U CN201936062U (en) | 2011-02-22 | 2011-02-22 | Projector lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201936062U true CN201936062U (en) | 2011-08-17 |
Family
ID=44447580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200441576U Expired - Fee Related CN201936062U (en) | 2011-02-22 | 2011-02-22 | Projector lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201936062U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109491049A (en) * | 2018-12-26 | 2019-03-19 | 歌尔股份有限公司 | Projection optical system and augmented reality glasses with it |
| WO2019148639A1 (en) * | 2018-01-30 | 2019-08-08 | 江西联益光学有限公司 | Collimating lens |
| TWI674430B (en) * | 2019-01-29 | 2019-10-11 | 中國商信泰光學（深圳）有限公司 | Optical lens assembly |
-
2011
- 2011-02-22 CN CN2011200441576U patent/CN201936062U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019148639A1 (en) * | 2018-01-30 | 2019-08-08 | 江西联益光学有限公司 | Collimating lens |
| CN109491049A (en) * | 2018-12-26 | 2019-03-19 | 歌尔股份有限公司 | Projection optical system and augmented reality glasses with it |
| CN109491049B (en) * | 2018-12-26 | 2023-08-29 | 歌尔光学科技有限公司 | Projection optical system and augmented reality glasses with same |
| TWI674430B (en) * | 2019-01-29 | 2019-10-11 | 中國商信泰光學（深圳）有限公司 | Optical lens assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160616 Address after: 610041 Sichuan City, Chengdu province high tech Zone, Century Road, No. 7, building 1, unit 5, layer 501, No. 1129 Patentee after: Chengdu top lighting technology Co., Ltd. Address before: 410013 M1 building, 2 buildings, 6 torch City, Changsha hi tech Development Zone, Hunan, China Patentee before: Changsha Chuangrong Electron Technology Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110817 Termination date: 20170222 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |