CN114296202A - Vacuum seal type optical lens adjusting device - Google Patents
Vacuum seal type optical lens adjusting device Download PDFInfo
- Publication number
- CN114296202A CN114296202A CN202210180261.0A CN202210180261A CN114296202A CN 114296202 A CN114296202 A CN 114296202A CN 202210180261 A CN202210180261 A CN 202210180261A CN 114296202 A CN114296202 A CN 114296202A
- Authority
- CN
- China
- Prior art keywords
- adjusting
- optical lens
- sealing
- lens
- main board
- 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.)
- Pending
Links
- 230000003287 optical effect Effects 0.000 title claims abstract description 72
- 238000007789 sealing Methods 0.000 claims abstract description 103
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 230000013011 mating Effects 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 230000003068 static effect Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 description 11
- 238000009434 installation Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 1
Images
Landscapes
- Lens Barrels (AREA)
Abstract
The invention provides a vacuum sealing type optical lens adjusting device which is arranged on a matching device in a vacuum system and used for installing and adjusting an optical lens, and is characterized by comprising the following components: the lens mounting part is used for mounting an optical lens and comprises a lens mounting plate and a fastener; the sealing fixing part is used for mounting the lens mounting part on a matched device in a vacuum system and comprises a flange main board, a perspective window and a sealing component, wherein the perspective window and the sealing component are arranged on the flange main board; and the adjusting part is used for adjusting the position and the angle of the optical lens and comprises at least 3 adjusting screw rods and at least 2 tension springs, wherein one end of each tension spring is connected with the lens mounting plate, the other end of each tension spring is connected with the flange main plate, the adjusting screw rods are movably arranged on the flange main plate in a penetrating mode, one end of each adjusting screw rod is abutted to the lens mounting plate, and the other end of each adjusting screw rod is used for a user to hold the lens when the adjusting screw rod is adjusted.
Description
Technical Field
The invention relates to the field of optics, in particular to a vacuum sealing type optical lens adjusting device.
Background
When using laser devices, it is often necessary to perform multi-dimensional adjustments of the optical lens in a vacuum environment.
In prior art, carry out vacuum seal again after adjusting optical lens position and angle through the adjusting screw on the mirror holder usually, can not carry out secondary regulation to optical lens after vacuum seal again, the mirror holder of installing optical lens places in vacuum environment, and whole mirror holder needs to satisfy the requirement of material gassing in the vacuum environment, and is higher to the requirement of material, increases manufacturing cost, and it is great to occupy space.
In the prior art, if the optical path in the vacuum environment needs to be adjusted in real time, an electric adjusting mechanism needs to be used to replace a conventional mechanical adjusting screw to adjust the angle and position of the optical lens in the vacuum environment. Although the method can solve the problem of adjusting the lens after vacuum sealing, the structure is more complex, the manufacturing cost of the device is greatly increased, the occupied space is larger, and the requirement on the material is higher.
Disclosure of Invention
The present invention has been made to solve the above problems, and an object of the present invention is to provide a vacuum sealing type optical lens adjusting device. Therefore, the invention provides the following technical scheme:
the invention provides a vacuum sealing type optical lens adjusting device which is arranged on a matching device in a vacuum system and used for installing and adjusting an optical lens, and is characterized by comprising the following components: the lens mounting part is used for mounting an optical lens and comprises a lens mounting plate and a fastener; the sealing fixing part is used for mounting the lens mounting part on a matched device in a vacuum system and comprises a flange main board, a perspective window and a sealing component, wherein the perspective window and the sealing component are arranged on the flange main board; and the adjusting part is used for adjusting the position and the angle of the optical lens and comprises at least 3 adjusting screw rods and at least 2 tension springs, wherein one end of each tension spring is connected with the lens mounting plate, the other end of each tension spring is connected with the flange main plate, the adjusting screw rods are movably arranged on the flange main plate in a penetrating mode, one end of each adjusting screw rod is abutted to the lens mounting plate, and the other end of each adjusting screw rod is used for a user to hold the lens when the adjusting screw rod is adjusted.
The vacuum sealing type optical lens adjusting apparatus according to the present invention may further include: the flange main board is provided with a perspective hole, the perspective window comprises a window lens and a window flange, and the window flange is used for fixing the window lens in the perspective hole.
The vacuum sealing type optical lens adjusting apparatus according to the present invention may further include: one side of the window flange close to the flange main board is a smooth surface which is machined, and the vacuum sealing mode is plane static sealing.
The vacuum sealing type optical lens adjusting apparatus according to the present invention may further include: the sealing assembly comprises a main board sealing rubber gasket and a window sealing rubber ring, the main board sealing rubber gasket is arranged on the flange main board, and the window sealing rubber ring is arranged in the perspective hole.
The vacuum sealing type optical lens adjusting apparatus according to the present invention may further include: the lens mounting plate is rectangular, the number of the tension springs is 4, and the 4 tension springs are respectively mounted at 4 corners of the lens mounting plate.
The vacuum sealing type optical lens adjusting apparatus according to the present invention may further include: wherein, adjusting screw sets up to 3, and 3 distances between the adjusting screw are all equal.
The vacuum sealing type optical lens adjusting apparatus according to the present invention may further include: wherein, regulating part still includes sealed adjusting screw cover, and sealed adjusting screw cover is worn to establish on the flange mainboard for with adjusting screw sealing connection.
The vacuum sealing type optical lens adjusting apparatus according to the present invention may further include: wherein, adjusting screw, sealed adjusting screw cover and tension spring set up along the direction of perpendicular to flange mainboard.
The vacuum sealing type optical lens adjusting apparatus according to the present invention may further include: the sealing fixing part further comprises a main board fixing bolt, and the flange main board is detachably connected to the matching device through the main board fixing bolt.
The vacuum sealing type optical lens adjusting apparatus according to the present invention may further include: wherein, the flange mainboard is stainless steel.
Action and Effect of the invention
The invention relates to a vacuum sealing type optical lens adjusting device, which comprises a lens mounting part, a sealing fixing part and an adjusting part, wherein the structures have the following effects:
the lens mounting portion includes a lens mounting plate and a fastener, and an optical lens can be mounted.
The sealing fixing part comprises a flange main board, a perspective window and a sealing assembly, wherein the perspective window and the sealing assembly are arranged on the flange main board. The sealing fixing part can install the lens installation part on a matching device in a vacuum system, the sealing assembly can ensure the sealing performance inside the matching device, and the perspective window is convenient for a user to observe the position and the angle of the optical lens.
The adjusting part comprises at least 3 adjusting screws and at least 2 tension springs. Adjusting screw is movably worn to establish on the flange mainboard, one end and lens mounting panel butt, and the other end is used for supplying the user to hold between the fingers when adjusting and holds, makes the user change the distance between lens mounting panel and the flange mainboard through adjusting screw to reach the effect of adjusting optical lens piece position and angle. Tension spring's one end and lens mounting panel are connected, and the other end and flange mainboard are connected, can exert pulling force to the lens mounting panel, make its stable connection on the flange mainboard, avoid optical lens piece to rock.
Therefore, the vacuum sealing type optical lens adjusting device can realize multi-dimensional adjustment of the position and the angle of the optical lens in the sealed vacuum environment through a simple mechanical structure, occupies small space, only part of the structure is in the vacuum environment, has low requirement on materials, and can effectively reduce the manufacturing cost.
Drawings
FIG. 1 is a schematic structural diagram of a vacuum sealing type optical lens adjusting device according to an embodiment of the present invention; and
fig. 2 is an assembly view of a vacuum sealing type optical lens adjusting apparatus according to an embodiment of the present invention.
Detailed Description
In order to make the technical means, the original features, the achieved objects and the effects of the present invention easily understood, the following embodiments are specifically described with reference to the accompanying drawings.
< example >
Fig. 1 is a schematic structural diagram of a vacuum sealing type optical lens adjusting device according to an embodiment of the present invention. Fig. 2 is an assembly view of a vacuum sealing type optical lens adjusting apparatus according to an embodiment of the present invention.
As shown in fig. 1 and 2, the vacuum sealing type optical lens adjusting device 100 includes a lens mounting portion 10, a seal fixing portion 20, and an adjusting portion 30.
The lens mounting portion 10 is used for mounting an optical lens, and includes a lens mounting plate 11 and a fastener. In this embodiment, the lens mounting plate 11 is rectangular, the middle of the lens mounting plate has a lens mounting hole 111, the lens mounting hole 111 is a counter bore, and the diameter of the end close to the seal fixing portion 20 is smaller than the diameter of the end far from the seal fixing portion 20. The inside lens mounting groove that has along the circumferencial direction that opens in the great one end in lens mounting hole 111 aperture, the fastener is the screw, and optical lens installs in the lens mounting groove and fixed through the fastener.
The seal fixing portion 20 is used for mounting the lens mounting portion 10 on a mating device in a vacuum system, and includes a flange main plate 21, a transparent window 22, a seal assembly 23, and a main plate fixing bolt 24. The flange main plate 21 is detachably connected to the mating device by main plate fixing bolts 24. In this embodiment, the flange main plate 21 is rectangular and made of stainless steel. The side of the flange main plate 21 facing the lens mounting plate 11 is a smooth surface that has been machined. The middle of the flange main board 21 is provided with a perspective hole 211, the perspective hole 211 is a counter bore, and the aperture of one end close to the lens mounting part 10 is smaller than the aperture of one end far away from the lens mounting part 10. The see-through window 22 includes a window lens 221 and a window flange 222, the window flange 222 being used to secure the window lens 221 within the see-through aperture 211. One side of the window flange 222 close to the flange main plate 21 is a smooth surface which is machined, and the vacuum sealing mode is plane static sealing. The sealing assembly 23 comprises a main plate sealing rubber gasket 231 and a window sealing rubber ring 232, the main plate sealing rubber gasket 231 is arranged on the flange main plate 21, and the window sealing rubber ring 232 is arranged in the perspective hole 211. In this embodiment, the number of the window sealing rubber rings 232 is 2, and the window sealing rubber rings are respectively installed on the front and rear sides of the window lens 221. Mainboard fixing bolt 24 sets up to 8, installs perpendicularly on flange mainboard 21, and wherein 2 symmetry settings are close to the edge in the left and right sides of flange mainboard 21 respectively, and remaining 6 divide into 2 sets of symmetry settings respectively and are close to the edge in the upper portion and the lower part of flange mainboard 21.
The adjusting portion 30 is used for adjusting the position and angle of the optical lens, and includes at least 3 adjusting screws 31 and at least 2 tension springs 32. One end of the tension spring 32 is connected to the lens mounting plate 11, and the other end is connected to the flange main plate 21. The adjusting screw 31 is movably disposed through the flange main plate 21, one end of the adjusting screw abuts against the lens mounting plate 11, and the other end of the adjusting screw is used for a user to hold the lens mounting plate. In the present embodiment, the tension springs 32 are provided in 4, and 4 tension springs 32 are respectively mounted at 4 corners of the lens mounting plate 11. The number of the adjusting screws 31 is 3, and the distances among the 3 adjusting screws 31 are equal and are arranged in an equilateral triangle shape. In this embodiment, the adjusting portion 30 further includes a sealing adjusting screw sleeve 33, and the sealing adjusting screw sleeve 33 is disposed on the flange main plate 21 for being hermetically connected with the adjusting screw 31. The adjusting screw 31, the seal adjusting screw boss 33, and the tension spring 32 are all disposed in a direction perpendicular to the flange main plate.
The following describes a specific application process and method of the vacuum sealing type optical lens adjusting device 100 according to the present invention with reference to the accompanying drawings 1-2:
step 1: the optical lens is clamped into a lens mounting groove of the lens mounting plate 11 and is fixed through a fastener;
step 2: the sealing fixing part 20 is installed on the mating device through 8 main board fixing bolts 24, so that the lens installation part 10 is sealed in a vacuum environment;
and step 3: one end of the adjusting screw 31 far away from the lens mounting part 10 is held to rotate, the adjusting screw 31 moves on the flange main board 21, and the lens mounting board 11 abutted against the other end of the adjusting screw 31 is enabled to be close to or far away from the flange main board 21;
and 4, step 4: the 3 adjusting screws 31 are adjusted respectively as required until the optical lens reaches the proper position and angle.
Effects and effects of the embodiments
The vacuum sealing type optical lens adjusting device according to the present embodiment includes a lens mounting portion, a seal fixing portion, and an adjusting portion, and these structures have the following effects:
the lens mounting portion can mount an optical lens, and includes a lens mounting plate and a fastener. The lens mounting plate in this embodiment is a rectangle, the middle of which has a lens mounting hole, the lens mounting hole is a counter bore, the aperture of the end close to the sealing fixing part is smaller than the aperture of the end far away from the sealing fixing part, so that the optical lens can be conveniently mounted, and the optical lens can be prevented from being separated from the inside of the hole. The inside lens mounting groove that has along the circumferencial direction that opens in the great one end in lens mounting hole aperture, the fastener is the screw, and optical lens installs in the lens mounting groove and fixed through the fastener, can avoid optical lens to rock, reaches more firm installation effect.
The sealing fixing part can install the lens installation part on a matching device in a vacuum system and comprises a flange main board, a perspective window, a sealing assembly and a main board fixing bolt. The flange mainboard passes through mainboard fixing bolt detachably and connects on supporting device, and the installation of being convenient for is used and is dismantled and accomodate. In this embodiment, the flange main board is rectangular, adopts stainless steel material, easily makes and the cost is lower. The one side of flange mainboard towards the lens mounting panel is the smooth surface through machining processing, can reach better leakproofness. The middle of the flange main board is provided with a perspective hole which is a counter bore, the aperture of one end close to the lens mounting part is smaller than the aperture of one end far away from the lens mounting part, and a perspective window is convenient to mount. The perspective window comprises a window lens and a window flange, and the window flange is used for fixing the window lens in the perspective hole. The perspective window is arranged to facilitate the user to observe the position and angle of the optical lens. One side of the window flange close to the flange main board is a smooth surface which is processed by machining, and the vacuum sealing mode is plane static sealing, so that a better sealing effect can be achieved. The sealing assembly comprises a main board sealing rubber gasket and a window sealing rubber ring, and the sealing assembly can guarantee the airtightness of a vacuum environment. The main board sealing rubber gasket is arranged on the flange main board, and can enhance the sealing performance between the main board flange and a matched device. The window sealing rubber ring is arranged in the perspective hole, so that the sealing performance between the perspective window and the flange main board can be enhanced. In this embodiment, the number of the sealing rubber rings of the window is 2, and the sealing rubber rings are respectively arranged on the front side and the rear side of the window lens, so that a better sealing effect can be achieved. Mainboard fixing bolt sets up to 8, installs perpendicularly on the flange mainboard, convenient to detach and installation. Wherein 2 mainboard fixing bolt symmetry respectively set up the left and right sides at the flange mainboard and be close to the edge, and remaining 6 divide into 2 sets of symmetry respectively and set up the upper portion and the lower part of flange mainboard and be close to the edge, make the even atress all around of flange mainboard, the connection between flange mainboard and the supporting device is more firm, and the leakproofness is better.
The adjusting part can adjust the position and the angle of the optical lens and comprises at least 3 adjusting screws and at least 2 tension springs. Tension spring's one end and lens mounting panel are connected, and the other end and flange mainboard are connected, can exert pulling force to the lens mounting panel, make its stable connection on the flange mainboard, avoid optical lens piece to rock. Adjusting screw is movably worn to establish on flange mainboard 21, one end and lens mounting panel butt, and the other end is used for supplying the user to hold between the fingers and holds, makes the user change the distance between lens mounting panel and the flange mainboard through adjusting screw to reach the effect of adjusting optical lens piece position and angle. Tension spring in this embodiment sets up to 4, and 4 tension spring install respectively in 4 bights of lens mounting panel, make the even atress of lens mounting panel, and is more stable during the regulation, and optical lens is difficult for rocking. The adjusting screw sets up to 3, and the distance between 3 adjusting screw all equals, is equilateral triangle shape and sets up, and the control range is wider, can realize the regulation of multi-direction, multi-angle. The adjusting part further comprises a sealing adjusting screw sleeve, the sealing adjusting screw sleeve is arranged on the flange main board in a penetrating mode, and the sealing performance of the joint of the adjusting screw and the flange main board can be improved. Adjusting screw, sealed adjusting screw cover and tension spring all set up along the direction of perpendicular to flange mainboard, make overall structure more stable, and the application of force when convenient to use person adjusts optical lens simultaneously.
Therefore, the vacuum sealing type optical lens adjusting device can realize multi-dimensional adjustment of the position and the angle of the optical lens in the sealed vacuum environment through a simple mechanical structure, occupies small space, only part of the structure is in the vacuum environment, has low requirement on materials, and can effectively reduce the manufacturing cost.
The above embodiments are preferred examples of the present invention, and are not intended to limit the scope of the present invention.
Claims (10)
1. A vacuum sealing type optical lens adjusting apparatus provided on a mating device in a vacuum system for mounting and adjusting an optical lens, comprising:
the lens mounting part is used for mounting the optical lens and comprises a lens mounting plate and a fastener;
the sealing fixing part is used for mounting the lens mounting part on the matched device in the vacuum system and comprises a flange main board, and a perspective window and a sealing assembly which are arranged on the flange main board; and
an adjusting part for adjusting the position and angle of the optical lens, comprising at least 3 adjusting screws and at least 2 tension springs,
wherein one end of the tension spring is connected with the lens mounting plate, the other end of the tension spring is connected with the flange main plate,
the adjusting screw rod is movably arranged on the flange main board in a penetrating mode, one end of the adjusting screw rod is abutted to the lens mounting plate, and the other end of the adjusting screw rod is used for a user to hold between the fingers when the adjusting screw rod is adjusted.
2. The vacuum sealing type optical lens adjusting apparatus according to claim 1, wherein:
wherein, the flange main board is provided with a perspective hole,
the see-through window comprises a window lens and a window flange,
the window flange is used for fixing the window lens in the perspective hole.
3. The vacuum sealing type optical lens adjusting apparatus according to claim 2, wherein:
one side of the window flange close to the flange main board is a smooth surface which is machined, and the vacuum sealing mode is plane static sealing.
4. The vacuum sealing type optical lens adjusting apparatus according to claim 2, wherein:
wherein the sealing assembly comprises a main board sealing rubber gasket and a window sealing rubber ring,
the main board sealing rubber gasket is arranged on the flange main board,
the window sealing rubber ring is arranged in the perspective hole.
5. The vacuum sealing type optical lens adjusting apparatus according to claim 1, wherein:
wherein the lens mounting plate is rectangular,
the tension springs are 4 in number, and 4 tension springs are respectively arranged at 4 corners of the lens mounting plate.
6. The vacuum sealing type optical lens adjusting apparatus according to claim 1, wherein:
wherein, 3 are set for adjusting screw, 3 all equal distance between adjusting screw.
7. The vacuum sealing type optical lens adjusting apparatus according to claim 1, wherein:
wherein the adjusting part also comprises a sealing adjusting screw sleeve,
the sealing adjusting screw sleeve penetrates through the flange main board and is used for being connected with the adjusting screw in a sealing mode.
8. The vacuum sealing type optical lens adjusting apparatus according to claim 7, wherein:
the adjusting screw, the sealing adjusting screw sleeve and the tension spring are arranged in a direction perpendicular to the flange main plate.
9. The vacuum sealing type optical lens adjusting apparatus according to claim 1, wherein:
wherein the sealing fixing part further comprises a main plate fixing bolt,
the flange main board is detachably connected to the matching device through the main board fixing bolt.
10. The vacuum sealing type optical lens adjusting apparatus according to claim 1, wherein:
the flange main board is made of stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210180261.0A CN114296202A (en) | 2022-02-25 | 2022-02-25 | Vacuum seal type optical lens adjusting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210180261.0A CN114296202A (en) | 2022-02-25 | 2022-02-25 | Vacuum seal type optical lens adjusting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114296202A true CN114296202A (en) | 2022-04-08 |
Family
ID=80978395
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210180261.0A Pending CN114296202A (en) | 2022-02-25 | 2022-02-25 | Vacuum seal type optical lens adjusting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114296202A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB354661A (en) * | 1930-02-07 | 1931-08-13 | Gen Electric Co Ltd | Improvements in and relating to holders for electric incandescent projection lamps |
| GB1293965A (en) * | 1969-03-06 | 1972-10-25 | Balda Werke Photographische | Improvements in or relating to camera objective lenses |
| CN110261993A (en) * | 2019-06-20 | 2019-09-20 | 北京大学 | Four-dimensional optics adjusts mirror holder, its adjusting method and optical system |
| CN211689202U (en) * | 2019-12-29 | 2020-10-16 | 武汉智莱恩光电科技有限公司 | Vacuum coating machine for preparing optical lens |
| CN112987217A (en) * | 2020-12-31 | 2021-06-18 | 武汉华工激光工程有限责任公司 | Multi-dimensional adjusting bracket of optical lens and optical assembly |
| CN114019641A (en) * | 2021-11-19 | 2022-02-08 | 南方科技大学 | Double-indium-ring sealing structure and application thereof |
-
2022
- 2022-02-25 CN CN202210180261.0A patent/CN114296202A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB354661A (en) * | 1930-02-07 | 1931-08-13 | Gen Electric Co Ltd | Improvements in and relating to holders for electric incandescent projection lamps |
| GB1293965A (en) * | 1969-03-06 | 1972-10-25 | Balda Werke Photographische | Improvements in or relating to camera objective lenses |
| CN110261993A (en) * | 2019-06-20 | 2019-09-20 | 北京大学 | Four-dimensional optics adjusts mirror holder, its adjusting method and optical system |
| CN211689202U (en) * | 2019-12-29 | 2020-10-16 | 武汉智莱恩光电科技有限公司 | Vacuum coating machine for preparing optical lens |
| CN112987217A (en) * | 2020-12-31 | 2021-06-18 | 武汉华工激光工程有限责任公司 | Multi-dimensional adjusting bracket of optical lens and optical assembly |
| CN114019641A (en) * | 2021-11-19 | 2022-02-08 | 南方科技大学 | Double-indium-ring sealing structure and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3849169A1 (en) | Camera assembly and terminal device | |
| CN101738838B (en) | Rear projection image display device | |
| KR20190108239A (en) | Display apparatus | |
| US20180359426A1 (en) | Fixture For Aligning Tiled Displays | |
| US20070247597A1 (en) | Apparatus for adjusting position of mirror | |
| CN105301871A (en) | Image pickup apparatus | |
| CN114296202A (en) | Vacuum seal type optical lens adjusting device | |
| US3917385A (en) | Simplified micropositioner | |
| US11159707B2 (en) | Main body of interchangeable-lens image pickup apparatus, mount apparatus for same, and flange back adjustment member | |
| CN103716570A (en) | Lens adjusting device and projector | |
| CN104834164A (en) | Adjusting module and projection device | |
| CN106842482A (en) | A kind of lens mount assembly and optical device | |
| US20070091488A1 (en) | Optical element mount | |
| CN107861216B (en) | Adjustable fixed mirror frame structure | |
| CN213276075U (en) | Optical adjusting device | |
| CN109031739A (en) | A kind of liquid crystal display device and split type backlight assembly | |
| US20130286200A1 (en) | Television receiver and electronic device | |
| CN111103698B (en) | Cassegrain is target surface position micromatic setting for camera lens | |
| JP2015200792A (en) | Projection type display device | |
| CN210249868U (en) | Beam limiter and X-ray machine | |
| CN110716372B (en) | DMD adjusting device, adjusting system and multi-DMD optical-mechanical system | |
| CN207704105U (en) | Adjusting bracket and laser equipment | |
| CN217587761U (en) | Lens adjustable subassembly and device | |
| CN213182288U (en) | Light path adjusting structure and projection equipment | |
| CN217821047U (en) | Lens fixing support of laser processing equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |