CN110012275B - Bidirectional lens adjusting module and projector using same - Google Patents
Bidirectional lens adjusting module and projector using same Download PDFInfo
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- CN110012275B CN110012275B CN201910264685.3A CN201910264685A CN110012275B CN 110012275 B CN110012275 B CN 110012275B CN 201910264685 A CN201910264685 A CN 201910264685A CN 110012275 B CN110012275 B CN 110012275B
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- elastic sheet
- groove
- sheet unit
- adjusting
- bracket body
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3141—Constructional details thereof
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Projection Apparatus (AREA)
- Lens Barrels (AREA)
- Mounting And Adjusting Of Optical Elements (AREA)
Abstract
The invention provides a bidirectional lens adjusting module and a projector using the same. The bidirectional lens adjusting module comprises a support body for installing and fixing the optical lens, a first adjusting portion and a second adjusting portion for adjusting the support body to move along a first direction and a second direction, and an axial pressing portion and a limiting elastic piece portion for pressing the support body along the optical axis direction of the optical lens. The limiting elastic sheet part comprises a first elastic sheet unit with a first groove and a second elastic sheet unit with a second groove, the end part of the third side of the support body is arranged in the first groove and abutted against the first elastic sheet unit so as to provide elastic force from the third side to the first side, and the end part of the fourth side of the support body is arranged in the second groove and abutted against the second elastic sheet unit so as to provide elastic force from the fourth side to the second side. By the invention, the production cost of the optical machine of the projector can be effectively controlled on the premise of ensuring the performance stability of the projector.
Description
Technical Field
The invention relates to the field of projection optical machine structures, in particular to a bidirectional lens adjusting module and a projector using the same.
Background
In the optical machine of the projector, the lens adjusting module is a device for calibrating and adjusting the light traveling direction of the light source. If the lens is not set to the correct position, the brightness and uniformity of the image projected by the projector will be affected.
In the conventional adjustment method, an adjustment screw is disposed on each of the vertical axis and the horizontal axis to achieve two-axis adjustment, and this method cannot accurately control the device to move in the vertical or horizontal direction. In the prior art, if the device is to be maintained to move at the correct position, the sliding member and the mechanical member are added in time to achieve the bi-axial adjustment. However, these methods also increase the complexity of the device and the required space of the module, thereby increasing the size and production cost of the optical machine.
Disclosure of Invention
In view of the above technical problems, an object of the present invention is to provide a high performance, low device complexity and low production cost bidirectional lens adjusting module and a projector using the same.
The bidirectional lens adjusting module comprises a bracket body for mounting and fixing an optical lens, a first adjusting part for adjusting the bracket body to move along a first direction and a second adjusting part for adjusting the bracket body to move along a second direction, wherein the bracket body is provided with a first side edge, a second side edge, a third side edge and a fourth side edge which are adjacent in sequence, the first side edge is opposite to the third side edge, the second side edge is opposite to the fourth side edge, the first adjusting part is movably connected to the first side edge, and the second adjusting part is movably connected to the second side edge. The bidirectional lens adjusting module further comprises an axial pressing part and a limiting elastic piece part; the axial pressing part is arranged at the edge of the bracket body and used for pressing the bracket body along the optical axis direction of the optical lens so as not to incline outwards, and the first direction and the second direction are both vertical to the optical axis direction of the optical lens; the limiting elastic sheet part comprises a first elastic sheet unit with a first groove and a second elastic sheet unit with a second groove, the first elastic sheet unit is arranged on the third side, the end part of the third side is arranged in the first groove and abutted against the first elastic sheet unit, the first elastic sheet unit is used for providing elastic force from the third side to the first side, the second elastic sheet unit is arranged on the fourth side, the end part of the fourth side is arranged in the second groove and abutted against the second elastic sheet unit, and the second elastic sheet unit is used for providing elastic force from the fourth side to the second side.
Preferably, when the first adjusting portion adjusts the bracket body to move along the first direction, the second groove keeps the bracket body moving in the first direction by limiting the end portion of the fourth side; when the second adjusting part adjusts the bracket body to move along the second direction, the first groove enables the bracket body to keep moving in the second direction by limiting the end part of the third side edge.
Preferably, the first groove is corresponding to the middle of the third side edge and has an opening facing the first adjusting portion, and the second groove is corresponding to the middle of the fourth side edge and has an opening facing the second adjusting portion.
Preferably, the extending direction of the first groove and the extending direction of the second groove are respectively located in a plane of the bracket body.
Preferably, the first elastic sheet unit comprises a mounting structure and a supporting structure which are respectively arranged at two ends, and a springback structure which is arranged between the mounting structure and the supporting structure; the first elastic sheet unit and the second elastic sheet unit have the same structure, the first groove is arranged on the rebounding structure of the first elastic sheet unit, and the second groove is arranged on the rebounding structure of the second elastic sheet unit. Furthermore, the rebounding structure of the first elastic sheet unit is an elastic sheet arched towards the first adjusting portion, and the rebounding structure of the second elastic sheet unit is an elastic sheet arched towards the second adjusting portion.
Preferably, the axial pressing part includes a plurality of pressing screws adjacent to four corners mounted to the bracket body.
Preferably, the first adjusting portion and the second adjusting portion are adjusting screws screwed to the bracket body respectively.
Preferably, the first direction is perpendicular to the second direction.
The invention also provides a projector comprising the bidirectional lens adjusting module.
Compared with the prior art, the bidirectional lens adjusting module and the projector using the same can ensure that the volume and the production cost of the adjusting device are not increased due to the complexity of the device and the number of mechanisms, so that the adjusting device can achieve stable biaxial adjustment in a limited space, and the production cost of an optical machine of the projector is effectively controlled on the premise of ensuring the performance stability of the projector.
Drawings
Fig. 1 is a schematic structural diagram of a bidirectional lens adjusting module according to an embodiment of the invention.
Fig. 2 is a schematic structural diagram of a first elastic sheet unit according to an embodiment of the present invention.
Fig. 3 is a schematic view of the two-way lens adjusting module of the present invention assembled into a projector optical machine.
Detailed Description
In order to further understand the objects, structures, features and functions of the present invention, the following embodiments are described in detail.
Referring to fig. 1 and fig. 2 in combination, fig. 1 is a schematic structural diagram of a bidirectional lens adjusting module according to an embodiment of the present invention, and fig. 2 is a schematic structural diagram of a first elastic sheet unit according to an embodiment of the present invention. The bidirectional lens adjusting module 100 of the present invention includes a bracket body 10 for mounting and fixing an optical lens 900, a first adjusting portion 1 for adjusting the movement of the bracket body 10 along a first direction X, and a second adjusting portion 2 for adjusting the movement of the bracket body 10 along a second direction Y, wherein the bracket body 10 has a first side 11, a second side 12, a third side 13, and a fourth side 14 adjacent to each other in sequence, the first side 11 is opposite to the third side 13, the second side 12 is opposite to the fourth side 14, the first adjusting portion 1 is movably connected to the first side 11, and the second adjusting portion 2 is movably connected to the second side 12. Preferably, the first adjusting portion 1 and the second adjusting portion 2 are adjusting screws screwed to the bracket body 10, respectively, but the invention is not limited thereto.
In one embodiment, the first direction X is perpendicular to the second direction Y. It should be noted that the present invention is also applicable to non-vertical situations.
The bidirectional lens adjusting module 100 further includes an axial pressing portion 3 and a limiting elastic piece portion 4.
The axial pressing portion 3 is disposed at an edge of the holder body 10, the axial pressing portion 3 is used for pressing the holder body 10 along an optical axis direction Z of the optical lens 900 so as not to tilt outward, and the first direction X and the second direction Y are both perpendicular to the optical axis direction Z of the optical lens 900. Preferably, the axial pressing portion 3 includes a plurality of pressing screws 31, and the plurality of pressing screws 31 are mounted adjacent to four corners of the bracket body 10. The pressing screw 31 has a cap for pressing the holder body 10 and a screw for screwing. The pressing screw 31 may also be a stepped screw for axial pressing. In practical applications, the installation positions and the number of the pressing screws 31 are not limited to the distribution and the number of positions on the embodiment shown in fig. 1 (i.e. two top corners on the left side and two on the right side).
The limiting elastic sheet portion 4 includes a first elastic sheet unit 41 having a first groove 410 and a second elastic sheet unit 42 having a second groove 420, the first elastic sheet unit 41 is installed on the third side 13, the end 131 of the third side 13 is disposed in the first groove 410 and abuts against the first elastic sheet unit 41, the first elastic sheet unit 41 is used for providing an elastic force from the third side 13 toward the first side 11, the second elastic sheet unit 42 is installed on the fourth side 14, the end 141 of the fourth side 14 is disposed in the second groove 420 and abuts against the second elastic sheet unit 42, and the second elastic sheet unit 42 is used for providing an elastic force from the fourth side 14 toward the second side 12.
Preferably, the second groove 420 keeps the holder body 10 moving in the first direction X by restricting the end 141 of the fourth side 14 when the first adjusting part 1 adjusts the holder body 10 moving in the first direction X. When the second adjusting part 2 adjusts the holder body 10 to move in the second direction Y, the first groove 410 keeps the holder body 10 moving in the second direction Y by restricting the end 131 of the third side 13. In one embodiment, the width of the first groove 410 is substantially equal to the thickness of the end 131 of the third side 13, and the width of the second groove 420 is substantially equal to the thickness of the end 141 of the fourth side 14. In other words, the first groove 410 functions as a limit guide for the third side 13 of the stand body 10, and the second groove 420 functions as a limit guide for the fourth side 14 of the stand body 10.
In one embodiment, the first groove 410 is located corresponding to the middle of the third side 13 and the opening of the first groove 410 faces the first adjusting portion 1, and the second groove 420 is located corresponding to the middle of the fourth side 14 and the opening of the second groove 420 faces the second adjusting portion 2.
Preferably, the extending direction of the first groove 410 and the extending direction of the second groove 420 may be respectively located in a plane (i.e., XY plane) in which the stent body 10 is located.
With continued reference to fig. 2, the first resilient sheet unit 41 includes a mounting structure 411 and a supporting structure 412 respectively disposed at two ends, and a resilient structure 413 located between the mounting structure 411 and the supporting structure 412. In an embodiment, the first resilient member unit 41 may be an integrally formed stamping structure. The present invention includes, but is not limited to, the mounting structure 411 is formed by bending and has a mounting fixing hole for fixing the first elastic sheet unit 41, the supporting structure 412 is directly curled to form a free end abutting, and the resilient structure 413 is directly bulged to provide an elastic restoring force.
The first resilient member unit 41 and the second resilient member unit 42 may have substantially the same structure. The first groove 410 may be formed on the resilient structure 413 of the first resilient sheet unit 41, and similarly, the second groove 420 may be formed on the resilient structure of the second resilient sheet unit 42.
Preferably, the resilient structure 413 of the first resilient piece unit 41 is a resilient piece that is arched toward the first adjustment portion 1, and similarly, the resilient structure of the second resilient piece unit 42 is a resilient piece that is arched toward the second adjustment portion 2.
The bidirectional lens adjusting module can reduce the volume of the adjusting module, reduce the use of elements such as a slide rail, a screw rod and the like in the traditional adjusting device, reduce the complexity of the adjusting device, reduce the number of mechanisms and reduce the cost of the elements; meanwhile, the lens can be adjusted in a limited space to keep vertical and horizontal movement, and additional production cost is not increased.
Referring to fig. 1 and fig. 3 in combination, fig. 3 is a schematic view of the two-way lens adjusting module of the present invention assembled into a projector optical machine. The projector of the present invention comprises the bidirectional lens adjusting module according to any of the above embodiments.
In practical applications, the optical lens 900 may be fixed in the bracket body 10 by the snap structure 9 in advance. The first adjusting portion 1 and the second adjusting portion 2 are respectively connected to two adjacent sides of the bracket body 10, and are used for respectively adjusting the bracket body 10 to vertically move and horizontally move relative to the optical housing 800. The axial pressing portion 3 presses the holder body 10 and fixes the holder body on the optical housing 800, so that the holder body 10 does not tilt outward out of the optical housing 800. The first elastic sheet unit 41 and the second elastic sheet unit 42 of the limiting elastic sheet part 4 are respectively arranged on the other two sides of the support body 10, the limiting elastic sheet part 4 is used for providing a counterforce capable of rebounding the support body 10, and the support body 10 can keep vertical and horizontal movement through a groove structure on the limiting elastic sheet part.
Referring to fig. 2, for example, the first elastic sheet unit 41 is taken as an example, the mounting structure 411 may be fastened to the optical engine housing 800 by screws, the supporting structure 412 abuts against the optical engine housing 800, the resilient structure 413 located between the mounting structure 411 and the supporting structure 412 provides an elastic force upwards, and the first groove 410 on the resilient structure 413 may allow the bracket body 10 to keep moving vertically and horizontally in a limited space without increasing additional component cost.
The bidirectional lens adjusting module and the projector using the same can ensure that the volume and the production cost of the adjusting device are not increased due to the complexity of the device and the number of mechanisms, so that the adjusting device can achieve stable biaxial adjustment in a limited space, and the production cost of an optical machine of the projector is effectively controlled on the premise of ensuring the performance stability of the projector.
The present invention has been described in relation to the above embodiments, which are only exemplary of the implementation of the present invention. It should be noted that the disclosed embodiments do not limit the scope of the invention. Rather, it is intended that all such modifications and variations be included within the spirit and scope of this invention.
Claims (10)
1. A bidirectional lens adjusting module comprises a bracket body for mounting and fixing an optical lens, a first adjusting part for adjusting the bracket body to move along a first direction and a second adjusting part for adjusting the bracket body to move along a second direction, wherein the bracket body is provided with a first side edge, a second side edge, a third side edge and a fourth side edge which are adjacent in sequence, the first side edge is opposite to the third side edge, the second side edge is opposite to the fourth side edge, the first adjusting part is movably connected to the first side edge, and the second adjusting part is movably connected to the second side edge;
the axial pressing part is arranged at the edge of the bracket body and used for pressing the bracket body along the optical axis direction of the optical lens so as not to incline outwards, and the first direction and the second direction are both vertical to the optical axis direction of the optical lens;
the limiting elastic sheet part comprises a first elastic sheet unit with a first groove and a second elastic sheet unit with a second groove, the first elastic sheet unit is arranged on the third side, the end part of the third side is arranged in the first groove and is abutted against the first elastic sheet unit, the first elastic sheet unit is used for providing elastic force from the third side to the first side, the second elastic sheet unit is arranged on the fourth side, the end part of the fourth side is arranged in the second groove and is abutted against the second elastic sheet unit, and the second elastic sheet unit is used for providing elastic force from the fourth side to the second side.
2. The bi-directional lens adjustment module of claim 1, wherein the second groove keeps the frame body moving in the first direction by limiting the end of the fourth side when the first adjustment portion adjusts the frame body to move in the first direction; when the second adjusting part adjusts the bracket body to move along the second direction, the first groove enables the bracket body to keep moving in the second direction by limiting the end part of the third side edge.
3. The bi-directional lens adjustment module of claim 1, wherein the first groove is located corresponding to a middle portion of the third side and has an opening facing the first adjustment portion, and the second groove is located corresponding to a middle portion of the fourth side and has an opening facing the second adjustment portion.
4. The bi-directional lens adjustment module of claim 1, wherein the first groove and the second groove extend in a plane of the bracket body.
5. The bi-directional lens adjustment module of claim 1, wherein the first resilient member comprises a mounting structure and a support structure disposed at two ends, and a resilient structure disposed between the mounting structure and the support structure; the first elastic sheet unit and the second elastic sheet unit have the same structure, the first groove is arranged on the rebounding structure of the first elastic sheet unit, and the second groove is arranged on the rebounding structure of the second elastic sheet unit.
6. The bi-directional lens adjustment module of claim 5, wherein the resilient structure of the first resilient member is a resilient member that bows toward the first adjustment portion, and the resilient structure of the second resilient member is a resilient member that bows toward the second adjustment portion.
7. The bi-directional lens adjustment module of claim 1, wherein the axial compression portion comprises a plurality of compression screws mounted adjacent to four corners of the bracket body.
8. The bi-directional lens adjusting module of claim 1, wherein the first adjusting portion and the second adjusting portion are adjusting screws screwed to the frame body.
9. The bi-directional lens adjustment module of claim 1, wherein the first direction is perpendicular to the second direction.
10. A projector comprising the bi-directional lens adjustment module of any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910264685.3A CN110012275B (en) | 2019-04-03 | 2019-04-03 | Bidirectional lens adjusting module and projector using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910264685.3A CN110012275B (en) | 2019-04-03 | 2019-04-03 | Bidirectional lens adjusting module and projector using same |
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| Publication Number | Publication Date |
|---|---|
| CN110012275A CN110012275A (en) | 2019-07-12 |
| CN110012275B true CN110012275B (en) | 2021-03-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910264685.3A Active CN110012275B (en) | 2019-04-03 | 2019-04-03 | Bidirectional lens adjusting module and projector using same |
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| CN (1) | CN110012275B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113109985B (en) * | 2020-01-09 | 2022-07-22 | 苏州佳世达光电有限公司 | Lens adjusting device and projector |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1577056A (en) * | 2003-07-28 | 2005-02-09 | 精工爱普生株式会社 | Projector |
| CN105137560A (en) * | 2015-08-27 | 2015-12-09 | 苏州佳世达光电有限公司 | Lens support device and projection device |
| CN106681086A (en) * | 2016-12-29 | 2017-05-17 | 成都迅达光电有限公司 | Vibration mirror support, vibration mirror and projector |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020044264A1 (en) * | 2000-10-17 | 2002-04-18 | Chang-Hsing Lu | Optical lens module adjustable in two dimensions |
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2019
- 2019-04-03 CN CN201910264685.3A patent/CN110012275B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1577056A (en) * | 2003-07-28 | 2005-02-09 | 精工爱普生株式会社 | Projector |
| CN105137560A (en) * | 2015-08-27 | 2015-12-09 | 苏州佳世达光电有限公司 | Lens support device and projection device |
| CN106681086A (en) * | 2016-12-29 | 2017-05-17 | 成都迅达光电有限公司 | Vibration mirror support, vibration mirror and projector |
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| Publication number | Publication date |
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| CN110012275A (en) | 2019-07-12 |
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