CN201936111U - Projection imaging device - Google Patents
Projection imaging device Download PDFInfo
- Publication number
- CN201936111U CN201936111U CN2010202962732U CN201020296273U CN201936111U CN 201936111 U CN201936111 U CN 201936111U CN 2010202962732 U CN2010202962732 U CN 2010202962732U CN 201020296273 U CN201020296273 U CN 201020296273U CN 201936111 U CN201936111 U CN 201936111U
- Authority
- CN
- China
- Prior art keywords
- pedestal
- imaging device
- projection imaging
- display device
- camera lens
- 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 - Lifetime
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Abstract
A projection imaging device comprises a lens, a display device and a base for connecting the lens with the display device. The projection imaging device further comprises a thermal deformation block and a stand, wherein the thermal deformation block is arranged between the lens and the base; the stand is used for connecting the display device with the base; and the stand is made of material having the same thermal expansion coefficient as the thermal deformation block. The projection imaging device is provided with the thermal deformation block, which is arranged between the lens and the base and is made of plastic, as well as the stand, which is connected with the display device and the base and is made of plastic generate thermal expansion, so that the offset between the lens and the display is minimized and further the projection imaging quality is ensured.
Description
[technical field]
The utility model relates to a kind of image documentation equipment, especially a kind of projection imaging device.
[background technology]
In the use of projector, along with the generation of heat, the temperature in the projector also rises gradually, thereby makes each ingredient generation thermal expansion, so that depart from the preceding gathering position of camera lens, has caused the defective of projector's imaging.In traditional projection imaging device, lens location change by driven unit and display device between position relation.But driven unit is made of several sections, makes that the position relation between camera lens and the display device becomes very complicated, has aggravated the deviation that thermal expansion causes.
[utility model content]
Based on this, be necessary that the position deviation that provides a kind of reduction to cause because of thermal expansion causes the projection imaging device of image defects.
A kind of projection imaging device, comprise camera lens, display device and the pedestal that connects described camera lens and display device, also comprise the thermal deformation piece that is arranged between described camera lens and the pedestal, and the pedestal that connects described display device and pedestal, described pedestal is by making with the thermal expansivity identical materials of thermal deformation piece.
Preferably, described thermal deformation piece and pedestal are thermal deformation piece and the pedestals that same plastic is made.
Preferably, described thermal deformation piece is the thermal deformation piece that polycarbonate+glass is made, and described pedestal is the pedestal that polycarbonate+glass is made.
Preferably, described pedestal comprises housing, is arranged at the sliding seat in the described housing and is arranged at assembling ring in the described sliding seat.
Preferably, offer through hole in the described sliding seat, described assembling ring is accommodated and is fixed in the described through hole, offers in the described assembling ring and the suitable mounting hole of described camera lens.
Preferably, described camera lens comprises shank, and described shank one end is provided with eyeglass, is arranged at intervals with a plurality of projectioies on the periphery of described shank away from the other end of eyeglass.
Preferably, inner edge is provided with a plurality of locking grooves at interval in the described assembling ring, in the described locking groove opening is set, and described projection is fixed in the locking groove after entering locking groove and rotation by opening, and described locking groove and described projection are clearance fit.
Preferably, described thermal deformation piece is arranged between described locking groove and the described projection.
Preferably, described housing is provided with platform along reverse extension of lens direction, and described display device is socketed on the described platform by pedestal.
Preferably, described display device is fixed on the platform by register pin in the side away from the assembling ring.
Above-mentioned projection imaging device is by being arranged at the thermal deformation piece that plastics are made between camera lens and the pedestal and being connected display device and pedestal generation thermal expansion that the plastics of pedestal are made, it is minimum to make that side-play amount between camera lens and the display drops to, to guarantee the projection imaging quality.
[description of drawings]
Fig. 1 is the cut-open view of the projection imaging device of an embodiment;
Fig. 2 is the perspective exploded view of the projection imaging device of an embodiment.
[embodiment]
Fig. 1 shows the projection imaging device of an embodiment, and this projection imaging device comprises camera lens 100, display device 200, connect the pedestal 300 of camera lens 100 and display device 200, be arranged at the thermal deformation piece 400 between camera lens 100 and the pedestal 300 and be connected display device 200 and the pedestal 500 of pedestal 300.
Please in conjunction with consulting Fig. 2, camera lens 100 comprises and is shank 110 cylindraceous that shank 110 1 ends are provided with eyeglass 120, are arranged at intervals with a plurality of protruding 140 on the periphery of shank 110 away from the other end of eyeglass 120.
The material of thermal deformation piece 400 is plastics, is preferably polycarbonate+glass material (PC+GF).Among one embodiment, thermal deformation piece 400 is arranged between locking groove 362 and the projection 140, and shank 110 is fixed in the locking groove 362.The PC+GF material has extraordinary physical and mechanical properties, and especially pulling strengrth, compression strenght height have stable mechanical property in wider temperature range.
Register pin 600 passes platform 380, and display device 200 is fixed on the platform 380.Among one embodiment, the position away from assembling ring 360 on platform 380 offers via hole 382.This via hole 382 is suitable with register pin 600, thereby display device 200 is installed on the platform 380.
In the course of work of projection imaging device, temperature rises, and thermal expansion takes place, and still, because thermal deformation piece 400 is made by identical plastics with pedestal 500, its thermal expansivity is identical, and the degrees of expansion that is produced also is identical.Pedestal 500 expanded by heating, make display device 200 be moved, but under the fixation of register pin 600, display device 200 is merely able to moving away from the direction of register pin 600 near camera lens 100, at this moment, thermal expansion also takes place in thermal deformation piece 400, move to the direction away from display device 200 thereby promote camera lens 100, thereby both mobile is cancelled out each other, make the position of camera lens 100 and display device 200 concern relative fixed, to guarantee the quality of imaging.
Above-mentioned projection imaging device is by being arranged at the thermal deformation piece that plastics are made between camera lens and the pedestal and being connected display device and pedestal generation thermal expansion that the plastics of pedestal are made, it is minimum to make that side-play amount between camera lens and the display drops to, to guarantee the projection imaging quality.
Thermal deformation piece that above-mentioned projection imaging device is made by same plastic and pedestal reduce the side-play amount between camera lens and the display, have reduced cost effectively, and have alleviated the weight of projection imaging device.
The above embodiment has only expressed several embodiment of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model claim.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model design, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.
Claims (9)
1. projection imaging device, comprise camera lens, display device and the pedestal that connects described camera lens and display device, it is characterized in that, also comprise the thermal deformation piece that is arranged between described camera lens and the pedestal, and the pedestal that connects described display device and pedestal, described pedestal is by making with the thermal expansivity identical materials of thermal deformation piece.
2. projection imaging device according to claim 1 is characterized in that, described thermal deformation piece and pedestal are thermal deformation piece and the pedestals that same plastic is made.
3. projection imaging device according to claim 2 is characterized in that, described pedestal comprises housing, be arranged at the sliding seat in the described housing and be arranged at assembling ring in the described sliding seat.
4. projection imaging device according to claim 3 is characterized in that, offers through hole in the described sliding seat, and described assembling ring is accommodated and is fixed in the described through hole, offers in the described assembling ring and the suitable mounting hole of described camera lens.
5. projection imaging device according to claim 4 is characterized in that described camera lens comprises shank, and described shank one end is provided with eyeglass, is arranged at intervals with a plurality of projectioies on the periphery of described shank away from the other end of eyeglass.
6. projection imaging device according to claim 5, it is characterized in that, inner edge is provided with a plurality of locking grooves at interval in the described assembling ring, in the described locking groove opening is set, described projection is fixed in the locking groove after entering locking groove and rotation by opening, and described locking groove and described projection are clearance fit.
7. projection imaging device according to claim 6 is characterized in that, described thermal deformation piece is arranged between described locking groove and the described projection.
8. projection imaging device according to claim 4 is characterized in that, described housing is provided with platform along reverse extension of lens direction, and described display device is socketed on the described platform by pedestal.
9. projection imaging device according to claim 8 is characterized in that, described display device is fixed on the platform by register pin in the side away from the assembling ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202962732U CN201936111U (en) | 2010-08-18 | 2010-08-18 | Projection imaging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202962732U CN201936111U (en) | 2010-08-18 | 2010-08-18 | Projection imaging device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201936111U true CN201936111U (en) | 2011-08-17 |
Family
ID=44447628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202962732U Expired - Lifetime CN201936111U (en) | 2010-08-18 | 2010-08-18 | Projection imaging device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201936111U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104932182A (en) * | 2014-03-18 | 2015-09-23 | 精工爱普生株式会社 | Projector |
| CN113985687A (en) * | 2021-09-30 | 2022-01-28 | 歌尔光学科技有限公司 | Lens assembly and projector |
-
2010
- 2010-08-18 CN CN2010202962732U patent/CN201936111U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104932182A (en) * | 2014-03-18 | 2015-09-23 | 精工爱普生株式会社 | Projector |
| CN113985687A (en) * | 2021-09-30 | 2022-01-28 | 歌尔光学科技有限公司 | Lens assembly and projector |
| CN113985687B (en) * | 2021-09-30 | 2022-08-19 | 歌尔光学科技有限公司 | Lens component and projector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20160823 Granted publication date: 20110817 |
|
| RINS | Preservation of patent right or utility model and its discharge | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20170823 Granted publication date: 20110817 |
|
| PD01 | Discharge of preservation of patent | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110817 |
|
| CX01 | Expiry of patent term |