CN103716570A - Lens adjusting device and projector - Google Patents
Lens adjusting device and projector Download PDFInfo
- Publication number
- CN103716570A CN103716570A CN201310560663.4A CN201310560663A CN103716570A CN 103716570 A CN103716570 A CN 103716570A CN 201310560663 A CN201310560663 A CN 201310560663A CN 103716570 A CN103716570 A CN 103716570A
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- Prior art keywords
- lens
- set screw
- fixed mount
- fixing base
- adjusting apparatus
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Abstract
The embodiment of the invention provides a lens adjusting device and a projector. The lens adjusting device comprises a lens holder, a fixation frame, an elastic connecting piece and at least two adjusting screws with cam-shaped nuts. Through the elastic force of the elastic connecting piece, the lens holder and the fixation frame are closed. The adjusting screws are screwed on the fixation frame. The cam contour side of the nut of each adjusting screw abuts against the side, which faces the fixation frame, of the lens holder. By rotating the cam-shaped nuts of the adjusting screws, the lens holder is pushed to carry out deflection. According to the embodiment of the invention, the size of the space occupied by the lens adjusting device can be reduced.
Description
Technical field
The present invention relates to camera lens field, relate in particular to a kind of lens adjusting apparatus and projector.
Background technology
In the optical field that need to use camera lens, often need to adjust the direction of camera lens, for example, in using the projector of DMD, need to adjust the direction of camera lens so that camera lens is parallel with DMD.
Fig. 1 shows the schematic diagram of a kind of lens adjusting apparatus of the prior art, this lens adjusting apparatus comprises lens fixing base 11, fixed head 12 and set screw 14, lens fixing base 11 is pressed towards fixed head 12 by Spring screws 13, set screw 14 is arranged in fixed head 12, direction with adjustable lens holder 11, and then realize the direction that adjusting is fixedly mounted on the camera lens in lens fixing base 11, make camera lens parallel with DMD15.
Although the lens adjusting apparatus shown in Fig. 1 can be realized the adjustment of lens direction, but the moving direction of set screw is identical with the direction that lens fixing base 11 is pushed, this makes the space occupying of whole lens adjusting apparatus larger, is unfavorable for the space configuration of other parts.
Summary of the invention
The object of the present invention is to provide a kind of lens adjusting apparatus and projector, can reduce the space size occupying.
One aspect of the present invention provides a kind of lens adjusting apparatus, comprising: lens fixing base, fixed mount, Flexible Connector and at least two set screw with cam face nut;
Wherein, described Flexible Connector furthers described lens fixing base and fixed mount each other by elastic force, described set screw is bolted on described fixed mount, the cam contour face of the nut of described set screw and described lens fixing base offset towards the one side of described fixed mount, by rotating the cam face nut of described set screw, to promote described lens fixing base, carry out deflection.
In a preferred embodiment, the angular speed direction in described set screw rotary course is perpendicular to the moving direction of described lens fixing base.
In a preferred embodiment, the cam face nut surface of described set screw forms polygon groove or polygonal hole.
In a preferred embodiment, the position being spirally connected with described set screw on described fixed mount has the storage tank for the cam face nut of accommodating described set screw.
In a preferred embodiment, described Flexible Connector is Spring screws, and described Spring screws, through described lens fixing base, is bolted on described fixed mount.
In a preferred embodiment, described lens fixing base comprises the lens barrel with flange arrangement.
In a preferred embodiment, described fixed mount has a cavity, the through hole that described fixed mount is communicated with described cavity with formation in the mutually close one side of described lens fixing base, so that light enters to inject in described cavity fixing camera lens transmission in described lens fixing base, described cavity for receiving the inwall of incident light, be used for arranging digital micro-mirror.
In a preferred embodiment, described fixed mount also has along two perforates that run through with the perpendicular direction of described light incident direction.
In a preferred embodiment, the be spirally connected position of the screw rod of reinforcing described set screw by a glue on described fixed mount.
The present invention also provides a kind of projector on the other hand, comprises above-mentioned lens adjusting apparatus.
Compared with prior art, in lens adjusting apparatus in the present embodiment as the angular velocity of rotation direction of the set screw of adjusting device the plane perpendicular to the nut of this set screw, also just perpendicular to the moving direction of lens fixing base, therefore can save the occupied space of whole device, be convenient to the space configuration of other parts.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of lens adjusting apparatus in prior art;
Fig. 2 is the schematic diagram at a visual angle of an embodiment of lens adjusting apparatus provided by the invention;
Fig. 3 is the schematic diagram at another visual angle of lens adjusting apparatus in Fig. 2;
Fig. 4 is the schematic diagram at another visual angle of lens adjusting apparatus in Fig. 2;
Fig. 5 is the schematic diagram of another embodiment of lens adjusting apparatus provided by the invention;
Fig. 6 is the schematic diagram at another visual angle of lens adjusting apparatus in Fig. 5;
Fig. 7 is the schematic diagram at another visual angle of lens adjusting apparatus in Fig. 5.
Embodiment
For making that object of the present invention, structure, feature and function thereof are had to further understanding, hereby coordinate embodiment to be described in detail as follows.
Fig. 2 shows the schematic diagram at a visual angle of an embodiment of lens adjusting apparatus provided by the invention, Fig. 3 shows the schematic diagram at another visual angle of lens adjusting apparatus in Fig. 2, Fig. 4 shows the schematic diagram at another visual angle of lens adjusting apparatus in Fig. 2, wherein invisible lines in Fig. 4 reality shown in broken lines.Please be simultaneously referring to Fig. 2 to Fig. 4, the lens adjusting apparatus in the present embodiment comprises lens fixing base 21, fixed mount 22, Flexible Connector 23 and two set screw 24 with cam face nut.
In practice, in order more easily to rotate set screw 24, in a preferred embodiment, the part surface of rotation set screw 24 can be designed to have the surface of larger coefficient of friction, user can rotate set screw 24 by pointing this part surface with larger coefficient of friction of rubbing like this.In one embodiment, the surface of this larger coefficient of friction can be the surface of indentation.
In order to adapt to lens adjusting apparatus needs in practice, in fixed mount 22, there is a cavity 221, at fixed mount 22, be formed at in the mutually close one side of lens fixing base 21 through hole that this cavity 221 is connected, so that light enters to inject in this cavity 221 from the interior fixing camera lens transmission of lens fixing base 21.In practice, for the optical projection system that adopts DLP technology, can be for digital micro-mirror (DMD) 25 be set for receiving the inwall 222 of incident light in this cavity 221.In order to make can to penetrate fixed mount 22 at the interior treated light of cavity 221, this fixed mount 21 also has two perforates that run through along the perpendicular direction of light incident direction.
In the present embodiment, rotate after set screw 24 at every turn, the screw thread based on screw rod 242, set screw 24 can remain on current position.In addition, in order further to increase the steadiness of set screw 24, the position that can be spirally connected to set screw 24 and fixed mount 22 by the mode of a glue after making lens fixing base 21 deflect into the position of pre-provisioning request by rotation set screw 24 in practice, reinforces.
In lens adjusting apparatus in the present embodiment as the angular velocity of rotation direction of the set screw of adjusting device the plane perpendicular to the nut of this set screw, also just perpendicular to the moving direction of lens fixing base, therefore can save the occupied space of whole device, be convenient to the space configuration of other parts.
Fig. 5 shows the schematic diagram of another embodiment of lens adjusting apparatus provided by the invention, Fig. 6 shows the schematic diagram at another visual angle of lens adjusting apparatus in Fig. 5, Fig. 7 shows the schematic diagram at another visual angle of lens adjusting apparatus in Fig. 5, wherein invisible lines in reality shown in broken lines in Fig. 7.Please be simultaneously referring to Fig. 5 to Fig. 7, the lens adjusting apparatus in the present embodiment comprises lens fixing base 21, fixed mount 22 ', Flexible Connector 23 and two set screw 24 ' with cam face nut.Different from the lens adjusting apparatus shown in Fig. 2, the lens adjusting apparatus in the present embodiment is provided with groove 26 on fixed mount 22 '.
Particularly, Flexible Connector 23 furthers lens fixing base 21 and fixed mount 22 ' each other by elastic force, and under the effect that there is no other external force, Flexible Connector 23 can be moved lens fixing base 21 and fixed mount 22 ' in the position of close contact each other.
Set screw 24 ' is bolted on fixed mount 22 ', set screw 24 ' comprises nut 241 ' and screw rod 242 ' (see figure 4), wherein, nut 241 ' has cam face, and the cam contour face of nut 241 ' and lens fixing base 21 offset towards the one side of fixed mount 22 ', the thrust that the cam contour of nut 241 ' applies in the face of lens fixing base 21, by the pulling force that overcomes 23 pairs of lens fixing bases 21 of Flexible Connector and apply, makes lens fixing base 21 maintain current location.Because the nut 241 ' of set screw 24 ' is cam face, therefore, by rotating the cam face nut 241 ' of set screw 24 ', can promotes lens fixing base 21 and carry out deflection.In the present embodiment, the number of set screw 24 ' is two, by regulating respectively the anglec of rotation of these two set screw 24 ', substantially can realize the deflection angle of adjustable lens holder 21 in all directions.Fixed mount 22 ' position upper and that set screw 24 ' is spirally connected has the storage tank 26 for the cam face nut 241 ' of accommodating this set screw 24 ', can make full use of space thus.
In addition, in the present embodiment, in order more easily to rotate set screw 24 ', on the surface of the nut 241 ' of set screw 24 ', form polygon groove 243 ', in Fig. 5 to Fig. 7, this polygon groove 243 ' is rectangular recess, but in the present embodiment not as limit.The spanner of coupling is inserted in this polygon groove 243 ' and rotated, can rotate with comparalive ease set screw 24 ', and then facilitate the deflection angle of adjustable lens holder 21.In addition, above-mentioned polygon groove 243 ' can also replace with polygonal hole, and this polygonal hole runs through nut 241 ' and the screw rod 242 ' of set screw 24 '.
The corresponding also a kind of projector of system of the present invention, this projector comprises the lens adjusting apparatus in above-mentioned each embodiment.
The present invention is described by above-mentioned related embodiment, yet above-described embodiment is only for implementing example of the present invention.Must be pointed out that, the embodiment having disclosed does not limit the scope of the invention.On the contrary, the change done without departing from the spirit and scope of the present invention and retouching, all belong to scope of patent protection of the present invention.
Claims (10)
1. a lens adjusting apparatus, is characterized in that, comprising: lens fixing base, fixed mount, Flexible Connector and at least two set screw with cam face nut;
Wherein, described Flexible Connector furthers described lens fixing base and fixed mount each other by elastic force, described set screw is bolted on described fixed mount, the cam contour face of the nut of described set screw and described lens fixing base offset towards the one side of described fixed mount, by rotating the cam face nut of described set screw, to promote described lens fixing base, carry out deflection.
2. lens adjusting apparatus as claimed in claim 1, is characterized in that, the angular speed direction in described set screw rotary course is perpendicular to the moving direction of described lens fixing base.
3. lens adjusting apparatus as claimed in claim 1, is characterized in that, the cam face nut surface of described set screw forms polygon groove or polygonal hole.
4. lens adjusting apparatus as claimed in claim 1, is characterized in that, the position being spirally connected with described set screw on described fixed mount has the storage tank for the cam face nut of accommodating described set screw.
5. lens adjusting apparatus as claimed in claim 1, is characterized in that, described Flexible Connector is Spring screws, and described Spring screws, through described lens fixing base, is bolted on described fixed mount.
6. lens adjusting apparatus as claimed in claim 1, is characterized in that, described lens fixing base comprises the lens barrel with flange arrangement.
7. lens adjusting apparatus as claimed in claim 1, it is characterized in that, described fixed mount has a cavity, the through hole that described fixed mount is communicated with described cavity with formation in the mutually close one side of described lens fixing base, so that light enters to inject in described cavity fixing camera lens transmission in described lens fixing base, described cavity for receiving the inwall of incident light, be used for arranging digital micro-mirror.
8. lens adjusting apparatus as claimed in claim 6, is characterized in that, described fixed mount also has along two perforates that run through with the perpendicular direction of described light incident direction.
9. lens adjusting apparatus as claimed in claim 1, is characterized in that, the be spirally connected position of the screw rod of reinforcing described set screw by a glue on described fixed mount.
10.Yi Zhong projector, is characterized in that, comprises lens adjusting apparatus as in one of claimed in any of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310560663.4A CN103716570B (en) | 2013-11-12 | 2013-11-12 | A kind of lens adjusting apparatus and projector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310560663.4A CN103716570B (en) | 2013-11-12 | 2013-11-12 | A kind of lens adjusting apparatus and projector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103716570A true CN103716570A (en) | 2014-04-09 |
| CN103716570B CN103716570B (en) | 2016-09-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310560663.4A Expired - Fee Related CN103716570B (en) | 2013-11-12 | 2013-11-12 | A kind of lens adjusting apparatus and projector |
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| CN (1) | CN103716570B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106842780A (en) * | 2017-02-24 | 2017-06-13 | 苏州佳世达光电有限公司 | Position adjustment module and projection arrangement |
| WO2017128924A1 (en) * | 2016-01-27 | 2017-08-03 | 深圳市光峰光电技术有限公司 | Projector lens fixing structure and ultra-short focus projector using same |
| WO2019114118A1 (en) * | 2017-12-11 | 2019-06-20 | 深圳光峰科技股份有限公司 | Lens adjusting and fixing structure and projection device |
| WO2020061238A1 (en) | 2018-09-18 | 2020-03-26 | Skyphos Industries, Inc. | A suspension system for adjusting projected light images |
| CN113109985A (en) * | 2020-01-09 | 2021-07-13 | 苏州佳世达光电有限公司 | Lens adjusting device and projector |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1749844A (en) * | 2004-09-15 | 2006-03-22 | 台达电子工业股份有限公司 | Optical projection display device and its assembling method |
| CN100378484C (en) * | 2005-01-19 | 2008-04-02 | 明基电通股份有限公司 | Projection apparatus and its lens adjusting mechanism |
| CN201974621U (en) * | 2010-11-30 | 2011-09-14 | 日立数字映像(中国)有限公司 | Device for finely adjusting lens of projector |
| CN103034026A (en) * | 2011-09-29 | 2013-04-10 | 索尼公司 | Lens position adjusting mechanism and projection device with same |
| CN102566228A (en) * | 2012-01-17 | 2012-07-11 | 苏州佳世达光电有限公司 | Projector device |
-
2013
- 2013-11-12 CN CN201310560663.4A patent/CN103716570B/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017128924A1 (en) * | 2016-01-27 | 2017-08-03 | 深圳市光峰光电技术有限公司 | Projector lens fixing structure and ultra-short focus projector using same |
| CN106842780A (en) * | 2017-02-24 | 2017-06-13 | 苏州佳世达光电有限公司 | Position adjustment module and projection arrangement |
| WO2019114118A1 (en) * | 2017-12-11 | 2019-06-20 | 深圳光峰科技股份有限公司 | Lens adjusting and fixing structure and projection device |
| WO2020061238A1 (en) | 2018-09-18 | 2020-03-26 | Skyphos Industries, Inc. | A suspension system for adjusting projected light images |
| CN113109985A (en) * | 2020-01-09 | 2021-07-13 | 苏州佳世达光电有限公司 | Lens adjusting device and projector |
| CN113109985B (en) * | 2020-01-09 | 2022-07-22 | 苏州佳世达光电有限公司 | Lens adjusting device and projector |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103716570B (en) | 2016-09-07 |
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