CN115685474A - Lens assembly - Google Patents
Lens assembly Download PDFInfo
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- CN115685474A CN115685474A CN202211391806.9A CN202211391806A CN115685474A CN 115685474 A CN115685474 A CN 115685474A CN 202211391806 A CN202211391806 A CN 202211391806A CN 115685474 A CN115685474 A CN 115685474A
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- 230000003287 optical effect Effects 0.000 claims abstract description 68
- 230000003750 conditioning effect Effects 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000011295 pitch Substances 0.000 description 2
- 230000008685 targeting Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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Abstract
The invention provides a lens assembly, which relates to the technical field of large-scale laser devices and comprises a lens base plate and an optical element, wherein the optical element is connected to the lens base plate, and the height of the optical element relative to the lens base plate is adjustable. Because the height of the optical element of the lens component of the invention relative to the lens base plate is adjustable, the relative position of the optical element and other equipment can be conveniently and accurately adjusted when in use, and the focusing precision of the optical element is improved.
Description
Technical Field
The invention relates to the technical field of large laser devices, in particular to a lens assembly.
Background
In recent years, large laser systems gradually evolve towards high energy, miniaturization and high efficiency, wherein the realization of high-efficiency targeting of frequency tripling laser is the key point in the current laser research field. The terminal optical subsystem is one of the important components of the firing ground system, and the interior of the terminal optical subsystem is composed of a plurality of functional modules such as a harmonic conversion module, a light beam focusing module, a vacuum firing ground connection module, an environment maintaining module and the like. The main function of the light beam focusing module is to realize the accurate focusing adjustment of frequency tripling laser. The lens assembly in the existing light beam focusing module cannot be finely adjusted due to the position of an optical element, so that the focusing precision of the lens is low, and the targeting precision and the focal spot quality are directly influenced.
Disclosure of Invention
The invention solves the problem of providing a lens assembly with higher focusing precision.
To solve the above problems, the present invention provides a lens assembly,
comprises a lens bottom plate and an optical element,
the optical element is connected to the lens base plate, and the height of the optical element relative to the lens base plate is adjustable.
Further comprises a lens frame, at least two first adjusting pads and at least two first stoppers,
the lens frame is detachably connected with the lens bottom plate and comprises a bottom edge and a side edge, the bottom edge and the side edge are perpendicular to each other, the bottom edge and the side edge are connected with each other, at least two first adjusting holes are formed in the bottom edge,
the optical element is arranged in the accommodating space formed by the bottom edge and the side edge,
each first adjusting pad is arranged in one first adjusting hole, the height of each first adjusting pad in each first adjusting hole is adjustable, the first adjusting pads are in contact with the bottom surface of the optical element,
the first stoppers are respectively arranged at different positions of the side edge, the height of each first stopper relative to the side edge is adjustable, and each first stopper is in contact with the top surface of the optical element and used for limiting the position of the optical element in the vertical direction.
Furthermore, the side edge comprises a front side edge and a rear side edge, and each first stop block is respectively arranged on the front side edge and the rear side edge.
Further, the left-right spacing between the optical element and the lens frame is adjustable.
Further, the utility model also comprises at least one second adjusting pad and at least one second stop block, the side edge also comprises a left side edge,
the left side edge is provided with a second adjusting hole, the second adjusting pads are respectively arranged in the second adjusting holes, the positions of the second adjusting pads relative to the left side edge in the direction vertical to the left side edge are adjustable,
the second stop block is arranged at the position of the bottom edge close to the right side, the left and right positions of the second stop block relative to the bottom edge are adjustable,
the left side of the optical element abuts against the second adjusting pad, and the right side of the optical element abuts against the second stop block.
Further, the front-to-back spacing between the optical element and the lens frame is adjustable.
Further, the utility model also comprises at least two third adjusting cushions, the side edges comprise a front side edge and a back side edge,
the front side edge and the rear side edge are respectively provided with a third adjusting hole,
the third adjusting pads are respectively arranged in third adjusting holes on the front side edge and the rear side edge, the third adjusting pads are adjustable in position relative to the front side edge or the rear side edge in the direction vertical to the front side edge or the rear side edge,
the front side and the rear side of the optical element are respectively abutted against the third adjusting pad on the front side and the third adjusting pad on the rear side.
Furthermore, the front side edge and the outer wall of the rear side edge are provided with side guide rollers and vertical surface guide rollers, the surfaces of the side guide rollers protrude out of the outer wall of the front side edge, and the vertical surface guide rollers protrude out of the top surface and the bottom surface of the front side edge.
Furthermore, a left limiting device and a right limiting device are arranged between the lens base plate and the lens frame.
Furthermore, the side edge of the lens frame further comprises a right side edge, the right limiting device is a third stop block connected to the right side edge, and the third stop block extends out of one side surface of the lens frame facing the lens base plate.
Furthermore, a connecting hole is formed in the third stop block, the lens frame is detachably connected with the lens bottom plate through a connecting piece, and the connecting piece is arranged in the connecting hole.
Furthermore, the leftward limiting device comprises a limiting column and a limiting column groove, the limiting column is arranged on the lens base plate or the lens frame, the limiting column is telescopic, the limiting column groove is arranged on the lens frame or the lens base plate, and the limiting column is arranged in the limiting column groove when extending out.
Because the height of the optical element of the lens component of the invention relative to the lens base plate is adjustable, the relative position of the optical element and other equipment can be conveniently and accurately adjusted when in use, and the focusing precision of the optical element is improved.
Drawings
FIG. 1 is an assembly view of a lens assembly according to an embodiment of the present invention;
FIG. 2 is an exploded view of a lens assembly according to an embodiment of the present invention.
Description of reference numerals:
41-lens base plate; 42-a lens frame; 421-bottom edge; 422-front side edge; 423-first adjusting hole; 424-rear side; 425-left side; 426-vertical plane guide rollers; 427-side guide rollers; 428-right side; 429-a guide bar; 43-an optical element; 46-a limit post; 47-limit column groove; 51-a first conditioning pad; 52-first stop; 53-a second conditioner pad; 54-a second stop; 55-a third conditioning pad; 56-third stop.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
If there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated.
As shown in fig. 1, a lens assembly according to an embodiment of the present invention includes a lens base plate 41 and an optical element 43,
the optical element 43 is connected to the lens base plate 41, the height of the optical element 43 relative to the lens base plate 41 is adjustable, the height refers to the direction along the coordinate axis Z axis in the coordinate system, the optical element 43 is a lens group for focusing the light beam,
the lens base plate 41 is used for mounting a lens assembly, which is required to be mounted in a beam focusing module or other use environment when in use, and the lens base plate 41 is used for connecting with the beam focusing module.
Because the height of the optical element 43 relative to the lens base plate 41 is adjustable, the relative position of the optical element 43 and other equipment can be conveniently and accurately adjusted when the optical element is used, and the focusing precision of the optical element 43 is improved.
Optionally, as shown in fig. 1 and fig. 2, a lens assembly according to an embodiment of the present invention further includes a lens frame 42, a first adjusting pad 51 and a first stop block 52,
the lens frame 42 is detachably connected with the lens bottom plate 41 through bolts or other connectors, the lens frame 42 includes a bottom side 421 and a side, the bottom side 421 and the side are perpendicular to each other, the bottom side 421 and the side are connected to each other, the bottom side 421 and the side form an accommodating space for accommodating the optical element 43, the optical element 43 is disposed in the accommodating space, the lens illumination light source is disposed inside the side, light emitted by the lens illumination light source is focused by the optical element 43, the bottom side 421 is provided with two first adjusting holes 423, the two first adjusting holes 423 are distributed on two sides corresponding to the bottom side 421, or the first adjusting holes 423 are provided in plural numbers, the first adjusting holes 423 are distributed on different sides of the bottom side 421,
the number of the first adjustment pads 51 is equal to the number of the first adjustment holes 423, each of the first adjustment pads 51 is disposed in one of the first adjustment holes 423, the height of each of the first adjustment pads 51 in the first adjustment holes 423 is adjustable, each of the first adjustment pads 51 contacts the bottom surface of the optical element 43, specifically, each of the first adjustment pads 51 is connected to each of the first adjustment holes 423 by a screw,
the number of the first stoppers 52 is two or more, each of the first stoppers 52 is disposed at a different position on the side, the height of each of the first stoppers 52 relative to the side is adjustable, and each of the first stoppers 52 contacts the top surface of the optical element 43 to limit the position of the optical element 43 in the vertical direction. Optionally, a lead screw is arranged on the side edge, a lead screw nut is connected to the lead screw, the first stopper 52 is connected to the lead screw nut, and the rotary lead screw is used for adjusting the height of the first stopper 52 relative to the side edge.
When the relative height between the optical element 43 and the lens frame 42 needs to be adjusted, each first stopper 52 is released, the height of the first adjusting pad 51 relative to the bottom edge 421 is adjusted, and each first stopper 52 is locked after the adjustment is completed.
Optionally, the side edges include a front side edge 422 and a rear side edge 424, and each of the first stoppers 52 is disposed on the front side edge 422 and the rear side edge 424, respectively. The first stoppers 52 are respectively disposed on the front side 422 and the rear side 424, so that the optical element 43 and the lens frame 42 are more stably connected.
Optionally, the left-right spacing between the optical element 43 and the lens frame 42 is adjustable. The left and right are directions along the coordinate axis X axis in the coordinate system, and since the left and right pitches between the optical element 43 and the lens frame 42 are adjustable, the position of the optical element 43 can be finely adjusted as necessary during use, and the focusing accuracy of the optical element 43 is further improved.
Optionally, a lens assembly according to an embodiment of the present invention further includes a second adjustment pad 53 and a second stop block 54, the lateral side further includes a left lateral side 425,
the left side 425 is provided with second adjusting holes, each second adjusting pad 53 is respectively arranged in one second adjusting hole, the second adjusting pads 53 can extend out of the second adjusting holes to abut against the optical element 43, the positions of the second adjusting pads 53 relative to the left side 425 in the direction vertical to the left side 425 can be adjusted, one or more second adjusting pads 53 are arranged, the number of the second adjusting holes is equal to that of the second adjusting pads 53,
the second stopper 54 is disposed at a position on the right side of the bottom edge 421, and the position of the second stopper 54 relative to the bottom edge 421 is adjustable left and right.
Specifically, two or more connecting holes are formed in the second stopper 54, and the second stopper 54 is connected to the bottom edge 421 through different connecting holes, so that the second stopper 54 is located at different positions on the bottom edge 421,
the left side of the optical element 43 abuts against the second adjustment pad 53 and the right side of the optical element 43 abuts against the second stopper 54.
When the left-right position of the optical element 43 needs to be adjusted, the position of the second adjusting pad 53 relative to the left side 425 is adjusted, and the position of the second stopper 54 is adjusted at the same time, so that the right side of the adjusted optical element 43 abuts against the second stopper 54.
Optionally, the front-to-back spacing between optical element 43 and lens frame 42 is adjustable. Since the front-rear pitch between the optical element 43 and the lens frame 42 is adjustable in the direction along the coordinate axis Y in the front-rear coordinate system, the position of the optical element 43 can be finely adjusted as necessary during use, and the focusing accuracy of the optical element 43 is further improved.
Optionally, a lens assembly according to an embodiment of the present invention further includes a third adjustment pad 55, the side edge includes a front side edge 422 and a rear side edge 424,
the front side 422 and the rear side 424 are respectively provided with a third adjusting hole,
two third adjusting pads 55 are disposed, two third adjusting pads 55 are disposed in the third adjusting holes on the front side 422 and the rear side 424, respectively, the position of the third adjusting pads 55 relative to the front side 422 or the rear side 424 is adjustable in the direction perpendicular to the front side 422 or the rear side 424, or a plurality of third adjusting pads 55 are disposed, a plurality of third adjusting pads 55 are disposed on the front side 422 and the rear side 424, respectively, the number of the third adjusting holes is equal to the number of the third adjusting pads 55, each third adjusting pad 55 is disposed in one third adjusting hole,
the front and rear sides of the optical element 43 respectively abut against the third adjustment pad 55 on the front side 422 and the third adjustment pad 55 on the rear side 424.
Optionally, the outer wall of the front side 422 is provided with one or more side guide rollers 427 and one or more vertical surface guide rollers 426, the surface of the side guide rollers 427 protrudes the outer wall of the front side 422, part of the vertical surface guide rollers 426 protrudes the top surface of the front side 422, and part of the vertical surface guide rollers 426 protrudes the bottom surface of the front side 422. The rear side 424 is provided with side guide rollers 427 and vertical surface guide rollers 426 similar to those of the front side 422.
Alternatively, the lens frame 42 and the optical element 43 are wedge-shaped, the outer wall of the front side 422 is provided with a guide strip 429, the guide strip 429 is a rectangular rod parallel to the front side 422, the side guide rollers 427 and the vertical surface guide rollers 426 are rotatably arranged on the guide strip 429, the surface of each side guide roller 427 protrudes out of the outer wall of the guide strip 429, part of each vertical surface guide roller 426 protrudes out of the top surface of the guide strip 429, and part of each vertical surface guide roller 426 protrudes out of the bottom surface of the guide strip 429.
Due to the arrangement of the side guide rollers 427 and the vertical plane guide rollers 426, the lens frame 42 can be conveniently rolled relative to the contact surface when the lens assembly is installed, so that the installation is more convenient.
Optionally, a left limiting device and a right limiting device are disposed between the lens base plate 41 and the lens frame 42. Since the left stopper and the right stopper are provided between the lens base plate 41 and the lens frame 42, the lens frame 42 and the lens base plate 41 are prevented from being displaced from each other when the lens frame 42 and the lens base plate 41 are attached.
Optionally, the side of the lens frame 42 further includes a right side 428, and the right limiting means is a third block 56 connected to the right side 428, and the third block 56 extends out of the side of the lens frame 42 facing the lens base plate 41.
Optionally, a connection hole is formed in the third stopper 56, and a connection member between the lens base plate 41 and the lens frame 42 is disposed in the connection hole, so that the lens frame 42 and the lens base plate 41 are detachably connected. Specifically, one or more third stoppers 56 are provided, and when a plurality of third stoppers are provided, the plurality of third stoppers 56 are respectively located on both sides of the leftward limiting device.
Optionally, the leftward limiting device includes a limiting post 46 and a limiting post groove 47, the limiting post 46 is disposed on the lens frame 42, the limiting post 46 is retractable, the limiting post groove 47 is disposed on the lens base plate 41, and the limiting post 46 is disposed in the limiting post groove 47 when extending out, or alternatively, the limiting post 46 is disposed on the lens base plate 41, and the limiting post groove 47 is disposed on the lens frame 42.
Although the present disclosure has been described above, the scope of the present disclosure is not limited thereto. Various changes and modifications may be effected therein by one of ordinary skill in the pertinent art without departing from the spirit and scope of the present disclosure, and these changes and modifications are intended to be within the scope of the present disclosure.
Claims (12)
1. A lens assembly, characterized in that,
comprises a lens base plate (41) and an optical element (43),
the optical element (43) is connected to the lens base plate (41), and the height of the optical element (43) relative to the lens base plate (41) is adjustable.
2. The lens assembly of claim 1,
also comprises a lens frame (42), at least two first adjusting pads (51) and at least two first stoppers (52),
the lens frame (42) is detachably connected with the lens bottom plate (41), the lens frame (42) comprises a bottom edge (421) and side edges, the bottom edge (421) is perpendicular to the side edges, the bottom edge (421) is connected with the side edges, at least two first adjusting holes (423) are formed in the bottom edge (421),
the optical element (43) is arranged in the accommodating space formed by the bottom edge (421) and the side edge,
the first adjusting pads (51) are respectively arranged in one first adjusting hole (423), the height of each first adjusting pad (51) in the first adjusting hole (423) is adjustable, the first adjusting pads (51) are contacted with the bottom surface of the optical element (43),
the first stoppers (52) are respectively arranged on different positions of the side edge, the height of each first stopper (52) relative to the side edge is adjustable, and each first stopper (52) is contacted with the top surface of the optical element (43) and is used for limiting the position of the optical element (43) in the vertical direction.
3. The lens assembly of claim 2, wherein the side edges comprise a front side edge (422) and a rear side edge (424), and wherein each of the first stops (52) is disposed on the front side edge (422) and the rear side edge (424), respectively.
4. A lens assembly according to claim 2, characterized in that the left-right spacing between the optical element (43) and the lens frame (42) is adjustable.
5. The lens assembly of claim 2,
further comprising at least one second adjustment pad (53) and at least one second stop (54), said side further comprising a left side (425),
the left side edge (425) is provided with a second adjusting hole, the second adjusting pads (53) are respectively arranged in the second adjusting holes, the positions of the second adjusting pads (53) relative to the left side edge (425) in the direction vertical to the left side edge (425) can be adjusted,
the second stopper (54) is arranged at the position of the bottom edge (421) close to the right side, the left-right position of the second stopper (54) relative to the bottom edge (421) is adjustable,
the left side of the optical element (43) abuts against the second adjustment pad (53), and the right side of the optical element (43) abuts against the second stop (54).
6. A lens assembly according to claim 2, characterized in that the front-to-back spacing between the optical element (43) and the lens frame (42) is adjustable.
7. The lens assembly of claim 6,
further comprising at least two third adjustment pads (55), said sides comprising a front side (422) and a rear side (424),
the front side (422) and the rear side (424) are respectively provided with a third adjusting hole,
the third adjusting pads (55) are respectively arranged in third adjusting holes on the front side edge (422) and the rear side edge (424), the third adjusting pads (55) are adjustable in position relative to the front side edge (422) or the rear side edge (424) in a direction perpendicular to the front side edge (422) or the rear side edge (424),
the front side and the rear side of the optical element (43) respectively abut against the third adjusting pad (55) on the front side (422) and the third adjusting pad (55) on the rear side (424).
8. A lens package according to claim 3, wherein side guide rollers (427) and vertical surface guide rollers (426) are provided on the outer walls of said front side edge (422) and said rear side edge (424), the surface of said side guide rollers (427) protruding the outer wall of said front side edge (422), and said vertical surface guide rollers (426) protruding the top and bottom surfaces of said front side edge (422).
9. A lens assembly according to claim 2, characterized in that a left-hand stop means and a right-hand stop means are arranged between the lens base plate (41) and the lens frame (42).
10. A lens assembly according to claim 9, wherein said side edges of said lens frame (42) further comprise a right side edge (428), said right limiting means being a third stop (56) connected to said right side edge (428), said third stop (56) protruding beyond a side of said lens frame (42) facing said lens base plate (41).
11. The lens assembly of claim 10, wherein the third block (56) has a connecting hole, and the lens frame (42) and the lens base plate (41) are detachably connected by a connecting member, the connecting member being disposed in the connecting hole.
12. A lens assembly according to claim 9, wherein said left-hand stop means comprises a stop post (46) and a stop post groove (47), said stop post (46) being arranged on said lens base plate (41) or said lens frame (42), said stop post (46) being retractable, said stop post groove (47) being arranged on said lens frame (42) or said lens base plate (41), said stop post (46) being arranged in said stop post groove (47) when extended.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211391806.9A CN115685474A (en) | 2022-11-08 | 2022-11-08 | Lens assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211391806.9A CN115685474A (en) | 2022-11-08 | 2022-11-08 | Lens assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115685474A true CN115685474A (en) | 2023-02-03 |
Family
ID=85049482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211391806.9A Pending CN115685474A (en) | 2022-11-08 | 2022-11-08 | Lens assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115685474A (en) |
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| CN1353320A (en) * | 2000-11-13 | 2002-06-12 | 台达电子工业股份有限公司 | Optical lens module able to be 2D regulated |
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| CN108732709A (en) * | 2016-09-23 | 2018-11-02 | 上海理工大学 | A kind of adjustment mechanism of five degree of freedom |
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| CN209198852U (en) * | 2018-12-27 | 2019-08-02 | 青岛海信激光显示股份有限公司 | Light lens adjustment structure and laser projection |
| CN211426886U (en) * | 2020-03-04 | 2020-09-04 | 北京万腾达斯科技有限公司 | Infrared lens focusing device |
| CN111948781A (en) * | 2020-07-10 | 2020-11-17 | 中国科学院西安光学精密机械研究所 | Off-axis reflector mechanism capable of realizing high-precision support and multi-degree-of-freedom adjustment |
| CN215067390U (en) * | 2021-07-16 | 2021-12-07 | 嘉贺恒德科技有限责任公司 | Optical lens |
-
2022
- 2022-11-08 CN CN202211391806.9A patent/CN115685474A/en active Pending
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| CN1353320A (en) * | 2000-11-13 | 2002-06-12 | 台达电子工业股份有限公司 | Optical lens module able to be 2D regulated |
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| CN105572830A (en) * | 2015-12-21 | 2016-05-11 | 中国科学院长春光学精密机械与物理研究所 | Five-degree-of-freedom adjusting device |
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| CN208818899U (en) * | 2018-11-07 | 2019-05-03 | 成都科信达实业有限公司 | A kind of optical adjusting frame two dimension precision adjustment unit |
| CN209198852U (en) * | 2018-12-27 | 2019-08-02 | 青岛海信激光显示股份有限公司 | Light lens adjustment structure and laser projection |
| CN211426886U (en) * | 2020-03-04 | 2020-09-04 | 北京万腾达斯科技有限公司 | Infrared lens focusing device |
| CN111948781A (en) * | 2020-07-10 | 2020-11-17 | 中国科学院西安光学精密机械研究所 | Off-axis reflector mechanism capable of realizing high-precision support and multi-degree-of-freedom adjustment |
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