CN110716372B

CN110716372B - DMD adjusting device, adjusting system and multi-DMD optical-mechanical system

Info

Publication number: CN110716372B
Application number: CN201810765447.6A
Authority: CN
Inventors: 周正平; 周建华; 郭燊
Original assignee: Appotronics Corp Ltd
Current assignee: Shenzhen Appotronics Corp Ltd
Priority date: 2018-07-12
Filing date: 2018-07-12
Publication date: 2021-08-03
Anticipated expiration: 2038-07-12
Also published as: CN110716372A; WO2020010856A1

Abstract

The invention relates to a DMD adjusting device, comprising: the DMD adjusting frame is provided with a first mounting structure and a second mounting structure, and the first mounting structure is used for mounting the DMD adjusting frame to an adjusting platform; the clamping piece comprises an installation part and a clamping part, the installation part is matched with the second installation structure to install the clamping piece to the adjusting frame, and the clamping part is used for clamping an adjustable DMD assembly. The invention also relates to a multi-DMD optical-mechanical system which comprises a DMD optical machine shell, a fixed DMD assembly and an adjustable DMD assembly, wherein the DMD optical machine shell comprises a first mounting surface for mounting the fixed DMD assembly, a second mounting surface for mounting the adjustable DMD assembly, the fixed DMD assembly comprises a DMD assembly, the DMD assembly is directly mounted on the first mounting surface, the adjustable DMD assembly comprises a DMD assembly and a mounting plate, the DMD assembly is mounted on the mounting plate, and the mounting plate is mounted on the second mounting surface. The invention also provides a DMD adjusting system, and the debugging and the assembly of the multi-DMD optical-mechanical system become simple and convenient by utilizing the DMD adjusting system.

Description

DMD adjusting device, adjusting system and multi-DMD optical-mechanical system

Technical Field

The invention relates to the field of projection, in particular to a DMD adjusting device, an adjusting system and a multi-DMD optical-mechanical system in the field of projection.

Background

A key output Device of DMD (Digital micro mirror Device) for imaging in various types of projection systems such as home projection, engineering projection and cinema projection. When a single DMD is used in a projection system, the DMD chip may exceed a temperature limit and become unstable due to heat dissipation limitations in the case of high-luminance output, and thus, the use of multiple DMDs in combination becomes a good choice in a projection system that greatly improves luminance output. The high coincidence of pixel is one of the key that many DMD cooperations were used, consequently needs very accurate adjusting device and governing system to carry out the omnidirectional regulation and control to the mounted position of DMD, guarantees the accurate unification of many DMD formation of image.

Disclosure of Invention

In view of the above situation, the present invention provides a DMD adjustment device, an adjustment system and a multi-DMD optical mechanical system to solve the above problems.

In a first aspect, the present invention provides a DMD modulation device, comprising:

the DMD adjusting frame is provided with a plurality of mounting structures, each mounting structure comprises a first mounting structure and a second mounting structure, and the first mounting structures are used for mounting the DMD adjusting frame to an adjusting platform.

The holder, including installation department and clamping part, the installation department with on the DMD alignment jig the cooperation of second mounting structure will the holder install extremely the alignment jig, the clamping part is including adjustable pressure head, adjustable pressure head is used for a centre gripping adjustable DMD subassembly.

In a second aspect, the present invention provides a DMD adjustment system, which includes an adjustment platform and the above-mentioned DMD adjustment device, wherein the DMD adjustment device is mounted on the adjustment platform and driven by the adjustment platform to adjust the position and angle of the adjustable DMD assembly clamped on the DMD adjustment device relative to the DMD optical chassis.

In a third aspect, the present invention provides a multi-DMD optical engine system, which includes a DMD optical engine housing, and at least one fixed DMD component and at least one adjustable DMD component mounted to the DMD optical engine housing, where the DMD optical engine housing includes at least one first mounting surface on which the fixed DMD component is mounted, and at least one second mounting surface on which the adjustable DMD component is mounted, the fixed DMD component includes a DMD component directly mounted to the first mounting surface of the DMD optical engine housing, the adjustable DMD component includes a DMD component and a mounting plate, the DMD component of the adjustable DMD component is mounted on the mounting plate, and the mounting plate is mounted to the second mounting surface of the DMD optical engine housing.

The invention has the advantages that:

according to the DMD adjusting device and the adjusting system provided by the embodiment of the invention, the adjustable DMD assembly is conveniently and stably fixed by the clamping piece, and the position and the angle of the DMD assembly are adjusted by driving the DMD adjusting device through the adjusting platform, so that the adjustment before the installation of the DMD assembly is very convenient, the debugging time of a DMD optical machine system is reduced, and the assembly of a prototype of the DMD optical machine system and a mature product is convenient. The DMD adjusting system provided by the invention has the advantages of simple structure of the adjusting platform, no need of a complex control system and a complex motion system, stable work, low cost, difficulty in damage, easiness in maintenance, high adjusting precision, strong operability and wide application range.

According to the multi-DMD optical-mechanical system, one DMD assembly is directly fixed, and the other DMD assembly is adjustable through the mounting plate and then fixed after being adjusted, so that debugging and assembling of the multi-DMD optical-mechanical system are simple and convenient, and debugging and mounting time is saved.

Drawings

Fig. 1 is a schematic perspective view of a DMD modulation system according to an embodiment of the invention.

Fig. 2 is a schematic perspective view of a DMD adjustment device according to an embodiment of the invention.

Fig. 3 is an exploded view of the DMD modulation device and a multi-DMD optical-mechanical system shown in fig. 2.

Fig. 4 is a schematic diagram of an adjustable DMD assembly for adjusting a multi-DMD optical-mechanical system using the DMD adjusting device shown in fig. 3.

Fig. 5 is a flowchart of a multi-DMD mounting method in an embodiment.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It will be understood that when an element is referred to as being "mounted on" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. When an element is referred to as being "directly mounted on," disposed on, or connected to "another element, it is directly mounted on, disposed on, or connected to the other element without intervening elements.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1, fig. 1 is a schematic perspective view of a DMD modulation system according to an embodiment of the invention. DMD conditioning system 10 includes a conditioning stage 100 and a DMD conditioning device 200. In this embodiment, the adjusting platform 100 is a six-axis adjusting platform, the DMD adjusting device 200 is installed on the adjusting platform 100, and the adjusting platform 100 adjusts the positions of the DMD adjusting device 200 in the front, rear, left, right, up and down directions relative to the DMD optical chassis and adjusts the angle of the DMD adjusting device 200 relative to the DMD optical chassis. For illustrative purposes, in fig. 1, DMD conditioning device 200 does not show the entire structure, but only DMD conditioning frame 201 therein.

The adjusting platform 100 is disposed on the dimming platform 300 and includes a support platform 101, a first direction translation mechanism 102, a second direction translation mechanism 103, a third direction translation mechanism 104, and an angle adjusting mechanism 105. Wherein the first azimuth translation mechanism 102 is mounted on the supporting platform 101, and comprises an adjusting handle 1021, the adjusting handle 1021 is used for manually adjusting the first translation mechanism 102 to move left and right on the supporting platform 101, the second direction translation mechanism 103 is arranged on the first direction translation mechanism 102, and moves following the left and right movement of the first azimuth translating mechanism 102, the second azimuth translating mechanism 103 includes an adjustment handle 1031, the adjusting handle 1031 is used for manually adjusting the second orientation translation mechanism 103 to move back and forth on the first orientation translation mechanism 102, the third orientation translation mechanism 104 is mounted on the second orientation translation mechanism 103 through a transfer angle beam 106, and moves along with the left-right, front-back movement of the second position translation mechanism 103, the third position translation mechanism 104 includes an adjustment handle 1041, the adjustment handle 1041 is used for manually adjusting the third azimuth translation mechanism 104 to move up and down on the transfer angle beam 106. It is understood that each of the first, second, and third position translating mechanisms 102-104 includes a transmission mechanism (not shown) that converts the rotation of the

corresponding adjustment handle

1021, 1031, or 1041 into linear motion of the corresponding

position translating mechanism

102, 103, or 104. It will be appreciated that the transmission mechanism may be a ball screw transmission or other transmission.

One end of the angle adjusting mechanism 105 is installed on one side of the third position translation mechanism 104 and moves along with the left, right, front, back and up movement of the third position translation mechanism 104, the DMD adjusting device 200 is installed on the other end of the angle adjusting mechanism 105, the angle adjusting mechanism 105 comprises an adjusting handle 1051, and the adjusting handle 1051 is used for manually adjusting the inclination angle of the DMD adjusting device 200 relative to the DMD optical chassis with the DMD component pre-installed. It is understood that in one embodiment, the adjusting handle 1051 can rotate around the rotation axis of the angle adjusting mechanism 105 within a certain angle range, so as to rotate the DMD adjusting device 200.

The transfer corner beam 106 is substantially in the shape of a right triangle, and the second azimuth translation mechanism 103 and the third azimuth translation mechanism 104 are connected to both sides of the corresponding right angle, respectively. In the embodiment shown in fig. 1, the support table 101, the first azimuth translation mechanism 102, and the second azimuth translation mechanism 103 are stacked in order in the bottom-up orientation, and the third azimuth translation mechanism 104, the angle adjustment mechanism 105, and the DMD adjustment frame 201 are connected in order in the right-to-left orientation. The rotation shaft of the angle adjusting mechanism 105 is disposed in the left-right direction from right to left.

Referring to fig. 2 and 3, DMD adjustment device 200 includes a DMD adjustment frame 201, a mounting member 202, a clamping member 203, and a positioning member 204, wherein DMD adjustment frame 201 includes a frame 2011 and a mounting structure disposed on frame 2011, and in the present embodiment, the mounting structure includes a mounting structure 2012 for mounting DMD adjustment frame 201 to adjustment platform 100, a mounting structure 2013 for mounting member 202 to DMD adjustment frame 201, and a mounting structure 2014 for mounting positioning member 204 to DMD adjustment frame 201. Mounting structure 2012 is disposed on one side of frame 2011, and after installing DMD adjusting device 200 to adjusting platform 100, mounting structure 2012 faces angle adjusting mechanism 105 of adjusting platform 100, and in this embodiment, mounting structure 2012 is a mounting plate with a mounting hole, and angle adjusting mechanism 105 is provided with a mounting hole, and a connecting piece such as a screw is passed through the mounting hole on mounting structure 2012 and the mounting hole on angle adjusting mechanism 105, so as to install DMD adjusting device 200 to adjusting platform 100.

Mounting structures

2013 and 2014 are disposed on frame 2011 in an orientation substantially perpendicular to mounting structure 2012, i.e., mounting structure 2012 faces in a first direction, and

mounting structures

2013 and 2014 face in a second direction substantially perpendicular to the first direction, e.g., in fig. 1, mounting structure 2012 faces rightward and is mounted to one end of angle adjustment mechanism 105, and

mounting structures

2013 and 2014 face forward and are substantially perpendicular to mounting structure 2012.

In the present embodiment, the

mounting structures

2013 and 2014 are mounting holes disposed on the frame 2011, wherein the mounting structure 2013 is located on the mounting structure 2014. The mounting member 202 is a mounting plate having a mounting hole 2021 and a mounting hole 2022, and the mounting member 202 can be mounted on the DMD adjustment frame 201 by using a connecting member such as a screw to pass through the mounting hole 2021 and the mounting structure 2013 on the mounting member 202, the positioning member 204 is a positioning plate having a mounting hole 2041, and similarly, the positioning member 204 can be mounted on the DMD adjustment frame 201 by using a connecting member such as a screw to pass through the mounting hole 2041 and the mounting structure 2014 on the positioning member 204. The positioning member 204 is further provided with a positioning structure, which is a positioning column 2042 in the present embodiment. It is understood that in other embodiments, both the mounting member 202 and the positioning member 204 may be non-detachably disposed on the DMD adjustment frame 201, for example, integrally formed with the DMD adjustment frame 201. The mounting structure may also be a snap or the like.

The clamping member 203 includes an installation portion 2031 and a clamping portion 2032, wherein the installation portion 2031 is installed on the DMD adjustment frame 201 through the installation component 202, the clamping portion 2032 is used for clamping the adjustable DMD assembly 402 pre-installed on the DMD optical chassis 401, in this embodiment, the installation portion 2031 is an installation plate with an installation hole 2033, the installation hole 2033 of the installation portion 2031 corresponds to the installation hole 2022 on the installation component 202, and a connecting member such as a screw is passed through the installation hole 2033 on the installation portion 2031 and the installation hole 2022 on the installation component 202, so that the clamping member 203 can be installed on the DMD adjustment frame 201. The clamping portion 2032 comprises a clamping arm 2034 and an adjustable pressure head 2035 disposed at the end of the clamping arm 2034, and in this embodiment, the adjustable pressure head 2035 is an adjustable pressure head nut, and the adjustable DMD assembly 402 is clamped by the adjustable pressure head nut. Specifically, in this embodiment, the adjustable ram nut clamps the adjustable DMD assembly 402 by holding the adjustable DMD assembly 402 against the spacer 204. It is appreciated that in other embodiments, an adjustable ram nut clamps adjustable DMD assembly 402 by holding adjustable DMD assembly 402 against DMD adjustment bracket 201.

In the present embodiment, the number of the

mounting structures

2013 and 2014, the mounting members 202, the clamping members 203 and the positioning members 204 is two. The two mounting structures 2013 are disposed a distance apart along the first direction, or in other embodiments, the two mounting structures 2013 are disposed a distance apart along a third direction that is perpendicular to the first direction and the second direction. Two clamping members 203 are mounted to corresponding mounting structures 2013 by corresponding mounts 202 to clamp both sides of adjustable DMD assembly 402. The two mounting structures 2014 are also spaced apart along the first direction, or in other embodiments, the two mounting structures 2014 are also spaced apart along the third direction, which is the same as the two mounting structures 2013. Positioning posts 2042 of two positioning members 204 position adjustable DMD assembly 402 on both sides of adjustable DMD assembly 402. In this embodiment, the clamp 203 is an elbow clamp.

Referring to fig. 3 and fig. 4, the multi-DMD optical-mechanical system 400 includes the optical chassis 401, the adjustable DMD component 402, and the fixed DMD component 403, where the DMD optical-mechanical chassis 401 includes two

mounting surfaces

4011 and 4012, one of the mounting surfaces 4011 is used to mount the fixed DMD component 403, in this embodiment, the fixed DMD component 403 cannot be adjusted with respect to the mounting surface 401 during the mounting process, that is, the position of the fixed DMD component 403 on the mounting surface 4011 is fixed. The other mounting surface 4012 is used for mounting the adjustable DMD component 402, and different from the fixed DMD component 403, the adjustable DMD component 402 can adjust the position of the adjustable DMD component 402 relative to the mounting surface 4012 in the process of being mounted to the DMD optical chassis 401, for example, the adjustable DMD adjusting device 200 is driven by the adjusting platform 100 to further drive the position of the adjustable DMD component 402 relative to the mounting surface 4012, for example, the adjustable DMD component 402 is adjusted to move left or right, move forward or backward, move up or down on the mounting surface 4012, and the adjustable DMD component 402 is rotated to have a certain inclination angle relative to the mounting surface 4012. Thus, by adjusting the position and angle of the adjustable DMD component 402, the transmitted image can be accurately overlapped with the fixed DMD component 403.

The adjustable DMD assembly 402 comprises a DMD assembly 4021 and a mounting plate 4022, the DMD assembly 4021 is fixed to the mounting plate 4022, and the mounting plate 4022 is fixed to the DMD adjustment device 200 by a clamping member 203 and is positioned by a positioning member 204. After the adjusting platform 100 drives the DMD adjusting device 200 to adjust the position of the adjustable DMD component 402, the mounting plate 4022 is mounted on the mounting surface 4012 of the DMD optical chassis 401. Specifically, in this embodiment, a plurality of mounting holes 4023 are formed in the mounting plate 4022, a plurality of mounting posts 4013 are correspondingly formed in the mounting surface 4012, the mounting posts 4013 penetrate through the corresponding mounting holes 4023, after the position of the DMD assembly 4021 is adjusted, the mounting posts 4013 are sleeved with the glass ring 600, and the mounting plate 4022 is stably locked on the DMD optical chassis 401 by dispensing around the glass ring 600.

In this embodiment, the mounting plate 4022 is made of Kovar alloy (Kovar) which has excellent heat conductivity and strength.

Please refer to fig. 5, which is a flowchart illustrating a method for mounting a plurality of DMD assemblies to a DMD optical chassis according to an embodiment of the present invention, wherein the plurality of DMD assemblies includes at least one fixed DMD assembly and at least one adjustable DMD assembly, the "fixed" of the fixed DMD assembly means that a position of the DMD assembly is not adjustable during the process of mounting the DMD optical chassis, the "adjustable" of the fixed adjustable DMD assembly means that a position of the DMD assembly is adjustable during the process of mounting the DMD optical chassis, and the adjustable DMD assembly includes a mounting plate and a DMD assembly fixed on the mounting plate. The method comprises the following steps:

and step S1, mounting the fixed DMD assembly to the first mounting surface of the DMD optical chassis.

Step S2, fixing the adjustable DMD assembly to a DMD adjustment system, specifically, fixing the mounting plate of the adjustable DMD assembly to the DMD adjustment device of the DMD adjustment system, for example, clamping the mounting plate of the adjustable DMD assembly by the DMD adjustment device.

And step S3, driving the DMD adjusting device through an adjusting platform of the DMD adjusting system, and further driving the adjustable DMD assembly to adjust the front, back, left, right, upper and lower six-direction positions of the adjustable DMD assembly and the angle of the adjustable DMD assembly relative to a second mounting surface of the DMD optical machine shell, so that an image output by the adjustable DMD assembly is accurately superposed with an image output by the fixed DMD assembly.

And step S4, fixing the adjustable DMD assembly with the adjusted position and angle on a second mounting surface of the DMD optical case. Specifically, after the position and the angle of the adjustable DMD assembly are adjusted in place, the mounting plate of the adjustable DMD assembly is fixed to the DMD optical chassis through the glass ring and the glue.

In summary, the DMD adjustment device provided in the embodiments of the present invention at least includes a DMD adjustment frame and a clamping member, the DMD adjustment frame is at least provided with a first mounting structure and a second mounting structure, the first mounting structure mounts the DMD adjustment frame to the adjustment platform, the clamping member includes a mounting portion and a clamping portion, the mounting portion cooperates with the second mounting structure on the DMD adjustment frame to mount the clamping member to the DMD adjustment frame, the clamping portion includes an adjustable pressure head, and the adjustable pressure head can clamp the adjustable DMD assembly. In the above-described embodiments, the first mounting structure may be the mounting structure 2012 and the second mounting structure may be the mounting structure 2013, for example, the mounting portion 2031 of the clip 203 is directly engaged with the mounting structure 2013 to directly mount the clip 203 to the DMD adjustment frame 201, or the mounting portion 2031 is indirectly engaged with the mounting structure 2013 to mount the clip 203 to the DMD adjustment frame 201 via the mounting member 202, or the second mounting structure may be the mounting hole 2022 on the mounting member 202 when the mounting member 202 is integrally formed with the DMD adjustment frame 201, that is, the mounting member 202 forms a part of the DMD adjustment frame 201.

According to the multi-DMD installation method and the multi-DMD optical-mechanical system, the debugging and the assembling of the multi-DMD optical-mechanical system are simple and convenient by fixing one DMD assembly in advance and adjusting other DMD assemblies, and the debugging and installation time is saved.

Although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the spirit and scope of the invention.

Claims

1. A DMD adjustment device, comprising:

the DMD adjusting frame is provided with a plurality of mounting structures, each mounting structure comprises a first mounting structure and a second mounting structure, and the first mounting structure is used for mounting the DMD adjusting frame to an adjusting platform;

the holder, including installation department and clamping part, the installation department with on the DMD alignment jig the cooperation of second mounting structure will the holder install extremely the DMD alignment jig, the clamping part is used for centre gripping an adjustable DMD subassembly, the clamping part is including adjustable pressure head, adjustable pressure head is used for the centre gripping adjustable DMD subassembly.

2. The DMD adjustment device of claim 1, wherein the adjustable indenter is an adjustable indenter nut.

3. The DMD adjustment device of claim 2, further comprising a positioning element disposed on the DMD adjustment frame, wherein the adjustable pressure head presses the adjustable DMD assembly against the positioning element to clamp the adjustable DMD assembly, and the positioning element is provided with a positioning structure for positioning the adjustable DMD assembly.

4. The DMD adjustment device of claim 3, further comprising a mount by which the clip is mounted to the second mounting structure on the DMD adjustment frame.

5. The DMD adjustment device of claim 4, wherein the number of the second mounting structures, mounting members, clamping members, and positioning members is two, and wherein two of the clamping members are mounted to the corresponding second mounting structures by the corresponding mounting members, wherein the two second mounting structures are spaced apart.

6. The DMD adjustment device of claim 4, wherein the clip is an elbow clip.

7. A DMD adjustment system comprising an adjustment platform and a DMD adjustment device according to any one of claims 1 to 6, wherein the DMD adjustment device is mounted to the adjustment platform, and the DMD adjustment device is driven by the adjustment platform to adjust the position and angle of an adjustable DMD assembly clamped on the DMD adjustment device relative to a DMD optical chassis.

8. The DMD adjustment system of claim 7, wherein the adjustment platform comprises a first directional translation mechanism, a second directional translation mechanism, a third directional translation mechanism, and an angle adjustment mechanism, the angle adjustment mechanism is disposed at one end of the third directional translation mechanism, the third directional translation mechanism is disposed on the second directional translation mechanism, the second directional translation mechanism is disposed on the first directional translation mechanism, and the first, second, third directional translation mechanisms and the angle adjustment mechanism each comprise an adjustment handle for manually adjusting the displacement of the first, second, and third directional translation mechanisms and the rotation angle of the angle adjustment mechanism.

9. The utility model provides a many DMD ray apparatus system, its characterized in that, many DMD ray apparatus system include DMD ray apparatus shell and install extremely at least one fixed DMD subassembly and at least one adjustable DMD subassembly of DMD ray apparatus shell, DMD ray apparatus shell includes at least one first installation face installation fixed DMD subassembly, at least one second installation face installation adjustable DMD subassembly, fixed DMD subassembly includes the DMD subassembly, the DMD subassembly direct mount extremely the first installation face of DMD ray apparatus shell, adjustable DMD subassembly includes DMD subassembly and mounting panel, the DMD subassembly of adjustable DMD subassembly install in on the mounting panel, the mounting panel install extremely the second installation face of DMD ray apparatus shell.

10. The opto-mechanical system of claim 9, wherein the mounting plate is a kovar plate.