CN101344627A

CN101344627A - Alignment structure of optical actuator

Info

Publication number: CN101344627A
Application number: CNA2007101283690A
Authority: CN
Inventors: 游锦祥; 吴家骐; 徐富美; 陈立铭
Original assignee: Delta Electronics Inc
Current assignee: Delta Electronics Inc
Priority date: 2007-07-10
Filing date: 2007-07-10
Publication date: 2009-01-14

Abstract

The invention discloses an alignment structure of a photo actuator. The optical actuator has a main body structure, a base and an optical element. The optical element is arranged on the base. The alignment structure comprises a connecting seat and an adjusting device, wherein the connecting seat is provided with a first extending part, the first extending part and a second extending part of the main body structure are correspondingly provided with the adjusting device to be connected with the first extending part and the second extending part, and the position of the second extending part relative to the first extending part can be adjusted.

Description

The align structures of optical actuator

Technical field

The present invention relates to a kind of optical facilities, particularly relate to a kind of optical actuator.

Background technology

In the existing technology in projection systems, digital light is handled (Digital Light Processing, DLP) optical projection system is owing to have high brightness, preferable color representation, reaction time and do not have advantage such as noise faster, and widely cinema, projector of office and home projection television adopt.For making the DLP optical projection system have better image smooth effect, in image smoothing apparatus, optical actuator is fixed in the assigned address of light path with optical element, thereby the align structures of optical actuator has critical influence to the image smooth effect of optical projection system.

Please refer to shown in Figure 1ly, a kind of align structures 13 of existing optical actuator 1, optical actuator 1 have an agent structure 10, a pedestal 11 and an optical element 12.Optical element 12 is lens or a catoptron, and is arranged at the pedestal 11 that links with agent structure 10.Align structures 13 comprises an a connecting seat 14 and an adjusting gear 15.Agent structure 10 is located in Connection Block 14, and the base 101 of agent structure 10 has a connection piece 102, and is fixedly arranged on Connection Block 14.Adjusting gear 15 is arranged at the bottom of Connection Block 14.Adjusting gear 15 has an elastic component 151 and a locking part 152, and elastic component 151 is the spring of a non-high rigidity, and sheathed locking part 152.Wherein, locking part 152 is a screw or a bolt.

After the lens group (figure shows) of optical actuator 1 and optical projection system links, adjusting gear 15 is adjusted optical element 12 according to imaging effect and is obtained aligned position, with colloid G fixed connecting piece 102, make optical element 12 can operate on the vibration processes of the smoothing of optical projection system again.Yet the align structures 13 of optical actuator 1 must be fixed with colloid or other auxiliary article after adjustment in addition.

Please refer to shown in Figure 2ly, another kind is commonly used the align structures 23 of optical actuator 2, and optical actuator 2 has an agent structure 20, a pedestal 21 and an optical element 22.Optical element 22 is arranged at pedestal 21, and pedestal 21 links with agent structure 20.Align structures 23 comprises an a connecting seat 24 and an adjusting gear 25.Agent structure 20 has one first plate 201 and one second plate 202.Adjusting gear 25 has an elastic component 251 and a locking part 252.Wherein this first plate 201 is locked in Connection Block 24 by screw S, and adjusting gear 25 is linked to first plate 201.And folder is established elastic component 251 between second plate 202 and first plate 201, and elastic component 251 is the higher sheet material of a rigidity, 252 bottoms that are arranged at Connection Block 24 of locking part, and contact second plate 202.

When adjustment optical element 22, by adjusting locking part 252, make optical element 22 can aim at the reference field P of Connection Block 24 with contact second plate 202, finish the alignment procedures of optical actuator 2.

Yet when locking part 252 contacts second plate 202, because of the elastic component 251 that is located in first plate 201 and second plate 202 is the higher sheet material of rigidity, and the adjustment direction of second plate 202 only can make progress the difficulty of the alignment procedures of increase optical actuator 2.

Therefore, how to provide a kind of align structures of optical actuator, the alignment procedures of optical element is carried out easily, and can promote the fiduciary level of align structures, and simplify the one-piece construction of optical actuator, become one of important topic.

Summary of the invention

Because above-mentioned problem, the object of the present invention is to provide a kind of align structures of optical actuator,, the adjustment mechanism of optical element is carried out easily with alignment procedures by changing the structural design of optical actuator, and the structure of simplification optical actuator, the processing cost of reduction optical element.

Edge is that for reaching above-mentioned purpose, according to the align structures of a kind of optical actuator of the present invention, this optical actuator has an agent structure, a pedestal and an optical element.Optical element is arranged at pedestal, and pedestal is linked to agent structure.Align structures comprises an a connecting seat and an adjusting gear, and Connection Block has one first extension, the corresponding setting of one second extension of first extension and agent structure, and agent structure is fixedly arranged on Connection Block.Adjusting gear links first extension and second extension, and can adjust the position of second extension with respect to first extension.

For reaching above-mentioned purpose, according to the align structures of a kind of optical actuator of the present invention, optical actuator has a pedestal and an optical element, and optical element is arranged at pedestal, and align structures comprises an a connecting seat and an adjusting gear.Connection Block has a frame, and pedestal is fixedly arranged on Connection Block.Adjusting gear is arranged at frame, for optic alignment.

From the above, the align structures of a kind of optical actuator of the present invention is incorporated into corresponding extension by adjusting gear and Connection Block, or adjusting gear is set for optic alignment by the frame at Connection Block.Be compared to prior art, align structures of the present invention does not need extra auxiliary fixing after adjustment, and can adjust all directions of optical element arbitrarily.In addition, use the align structures of adjusting gear can finish the assembling of optical actuator and aiming at of optical element simultaneously, reduce the processing cost of optical element, simplify the structure of optical actuator.

Description of drawings

Fig. 1 is a kind of synoptic diagram of commonly using the align structures of optical actuator;

Fig. 2 is the another kind of synoptic diagram of commonly using the align structures of optical actuator;

Fig. 3 A and Fig. 3 B are the synoptic diagram according to the align structures of a kind of optical actuator of first embodiment of the invention; And

Fig. 4 is the synoptic diagram according to the align structures of the another kind of optical actuator of second embodiment of the invention.

The component symbol explanation:

1,2,3,4: optical actuator

10,20,30: agent structure

11,21,31,41: pedestal

12,22,32,42: optical element

13,23,33,43: align structures

14,24,34,44: Connection Block

15,25,35,45: adjusting gear

101: base

102: web member

151,251,351: elastic component

152,252,352: locking part

201: the first plates

202: the second plates

302: the second extensions

341: the first extensions

441: frame

G: colloid

P: reference field

S: screw

Embodiment

Hereinafter with reference to relevant drawings, the align structures according to a kind of optical actuator of preferred embodiment of the present invention is described, wherein components identical will be illustrated with identical symbol.

First embodiment

Please refer to shown in Fig. 3 A and Fig. 3 B, the align structures 33 of a kind of optical actuator 3 of first embodiment of the invention, optical actuator 3 have an agent structure 30, a pedestal 31 and an optical element 32.Optical element 32 is lens or a catoptron, and is arranged at pedestal 31 in the fixing mode, and pedestal 31 is linked to agent structure 30.Align structures 33 comprises an a connecting seat 34 and an adjusting gear 35.

Connection Block 34 has one first extension 341, and is shaped in the periphery of Connection Block 34.Agent structure 30 has one second extension 302, and corresponding first extension 341 is shaped in the periphery of agent structure 30.Adjusting gear 35 links first extension 341 and second extension 302.Wherein this adjusting gear 35 has an elastic component 351 and a locking part 352, and elastic component 351 is the spring or the shell fragment of a high rigidity, and to be sheathed on be the locking part 352 of a screw or a bolt.

After optical actuator 3 and lens group (figure shows) link, according to imaging effect to adjust four elastic components 351 and locking part 352 (shown in Fig. 3 B).In the process, Connection Block 34 makes optical element 32 can tune to the reference position for fixing.

Second embodiment

Please refer to shown in Figure 4ly, the another kind of optical actuator 4 of second embodiment of the invention, optical actuator 4 have a pedestal 41, an optical element 42 and one and aim at structure 43.Optical element 42 is lens or a catoptron, and can bond, fixing or manner be arranged at pedestal 41.Align structures 43 has an a connecting seat 44 and an adjusting gear 45.Connection Block 44 has a frame 441, and pedestal 41 for example is fixedly arranged on frame 441 in the locking mode of a screw S.Adjusting gear 45 is a block or sheet, and with frame 441 such as but not limited to combining in modes such as bonding, fixing or fastenings.In the present invention, Connection Block 44 and pedestal 41 also can be formed in one

In the present embodiment, after the align structures 43 of optical actuator 4 passes through optical element 42 and adjusting gear 45 contrapositions, with for example colloid G optical element 42 is fixed in pedestal 41 again, aligning and optical actuator 4 assemblings to finish optical element 42 simultaneously do not need can finish the alignment procedures of optical element 42 through adjusting mechanism again.

In sum, the align structures of a kind of optical actuator of the present invention is by adjusting device and Connection Block knot Close in corresponding extension, or adjusting device is set for optical element pair by the frame at Connection Block Accurate. Compared to prior art, align structures of the present invention does not need extra auxiliary fixing after adjustment, and can Adjust arbitrarily all directions of optical element. In addition, use the align structures of adjusting device to finish simultaneously The assembling of optical actuator is aimed at optical element, reduces the processing cost of optical element, simplifies photic moving The structure of device.

The above only is illustrative, but not is restricted person. Any spirit of the present invention and model of not breaking away from The farmland, and to its equivalent modifications of carrying out or change, all should be included in the accompanying claim.

Claims

1. An alignment structure of an optical actuator, the optical actuator has a main structure, a base and an optical element, the optical element is arranged on the base, the base is connected to the main structure, and the alignment structure include:

The connection seat has a first extension, the first extension is arranged corresponding to the second extension of the main structure, and the main structure is fixed on the connection seat; and

The adjustment device connects the first extension part and the second extension part, and can adjust the position of the second extension part relative to the first extension part.

2. The alignment structure as claimed in claim 1, wherein the first extending portion is located at a periphery of the connecting base.

3. The alignment structure as claimed in claim 2, wherein the first extension part is integrally formed with the connecting seat.

4. The alignment structure as claimed in claim 2, wherein the second extension portion is located at a periphery of the main structure.

5. The alignment structure as claimed in claim 4, wherein the second extension part is integrally formed with the main structure.

6. The alignment structure as claimed in claim 1, wherein the adjusting device has an elastic member and a locking member, and the elastic member sleeves the locking member.

7. The alignment structure as claimed in claim 6, wherein the elastic member is a spring or a shrapnel.

8. The alignment structure as claimed in claim 6, wherein the elastic member has high rigidity.

9. The alignment structure as claimed in claim 6, wherein the locking member is a screw or a bolt.

10. The alignment structure as claimed in claim 1, wherein the main structure is fixed on the connecting seat in a locking manner.

11. The alignment structure according to claim 1, wherein the optical element is disposed on the base by bonding, clamping or fastening.

12. The alignment structure of claim 1, wherein the optical element is a lens or a mirror.

13. An alignment structure of an optical actuator, the optical actuator has a base and an optical element, the optical element is arranged on the base, the alignment structure comprises:

a connecting seat having a frame, the base is fixed on the connecting seat; and

The adjusting device is arranged on the frame for aligning the optical element.

14. The alignment structure according to claim 13, wherein the adjustment device is disposed on the frame by bonding, fastening or fastening.

15. The alignment structure as claimed in claim 13, wherein the connecting seat and the base are integrally formed.

16. The alignment structure according to claim 13, wherein the adjusting device is in the shape of a block or a sheet.

17. The alignment structure as claimed in claim 13, wherein the base is fixed on the frame in a locking manner.

18. The alignment structure as claimed in claim 13, wherein the optical element is fixed on the base by a glue.

19. The alignment structure as claimed in claim 13, wherein the optical element is disposed on the base by bonding, clamping or fastening.

20. The alignment structure of claim 13, wherein the optical element is a lens or a mirror.