CN109471234B - Jig for cementing lens and positioning cementing method - Google Patents
Jig for cementing lens and positioning cementing method Download PDFInfo
- Publication number
- CN109471234B CN109471234B CN201910007782.4A CN201910007782A CN109471234B CN 109471234 B CN109471234 B CN 109471234B CN 201910007782 A CN201910007782 A CN 201910007782A CN 109471234 B CN109471234 B CN 109471234B
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- lens
- optical power
- single lens
- auto
- collimator
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- 238000000034 method Methods 0.000 title claims abstract description 23
- 230000003287 optical effect Effects 0.000 claims abstract description 116
- 239000003292 glue Substances 0.000 claims abstract description 7
- 238000004026 adhesive bonding Methods 0.000 claims description 23
- 238000010586 diagram Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000000750 progressive effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/025—Mountings, adjusting means, or light-tight connections, for optical elements for lenses using glue
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lens Barrels (AREA)
- Mounting And Adjusting Of Optical Elements (AREA)
Abstract
The application discloses a tool, location veneer method for cemented lens, include: the auto-collimator fixing barrel is used for fixedly mounting the auto-collimator; the limiting block is positioned above the auto-collimator fixing cylinder; the lens cone is positioned between the auto-collimator fixed cylinder and the limiting block and is used for fixedly mounting the single lens without optical power; the fine tuning screw is positioned at the outer side of the limiting block and used for adjusting the position of the lens barrel; the positioning screw is positioned on the upper surface of the limiting block and used for positioning the lens barrel; and the fine adjustment jackscrew is positioned on the lens barrel and used for adjusting the position of the single lens with optical power. The application provides an above-mentioned tool passes through mechanical structure, and the application is from the collimation principle, can glue no optical power single lens with have optical power single lens to guarantee the optical axis uniformity of two.
Description
Technical Field
The invention relates to the technical field of lens gluing, in particular to a jig for gluing lenses and a positioning gluing method.
Background
As society continues to develop, the use of gluing systems in the optical field is becoming more and more widespread. In the optical lens gluing, a gluing centering instrument is mainly used at present, but it is required that the optical lenses must all be single lenses with optical power. If one of the single lenses is a system with no optical power, high consistency of the optical axis between the two single lenses cannot be achieved by gluing the centralizer.
If the single lens without optical power and the single lens with optical power are glued, a mechanical mode is mainly adopted at present to center the two; in this case, due to the decentration of the single lens with optical power itself, the optimum optical axis position consistent with the optical axis of the single lens without optical power cannot be found, the geometric optical centers of the two can be ensured to be aligned only by a mechanical way, and the consistency of the actual optical centers is neglected.
Therefore, how to design a fixture for gluing a single lens with no optical power and a single lens with optical power, and ensuring the consistency of the optical axes of the two is a technical problem to be solved by the skilled person.
Disclosure of Invention
In view of the above, the present invention is directed to a fixture and a positioning and gluing method for a cemented lens, which can glue a single lens with no optical power and a single lens with optical power, and ensure the consistency of the optical axes of the two. The specific scheme is as follows:
a jig for a cemented lens, comprising:
the auto-collimator fixing barrel is used for fixedly mounting the auto-collimator;
the limiting block is positioned above the auto-collimator fixing cylinder;
the lens cone is positioned between the auto-collimator fixing cylinder and the limiting block and is used for fixedly mounting the single lens without optical power;
the fine tuning screw is positioned at the outer side of the limiting block and used for adjusting the position of the lens barrel;
the positioning screw is positioned on the upper surface of the limiting block and used for positioning the lens barrel;
and the fine adjustment jackscrew is positioned on the lens barrel and used for adjusting the position of the single lens with optical power.
Preferably, in the jig for a cemented lens according to the embodiment of the present invention, the fine adjustment screw is specifically configured to adjust movement of the lens barrel in a direction approaching or separating from the fine adjustment screw and rotation of the lens barrel itself.
Preferably, in the jig for a cemented lens according to the embodiment of the present invention, the lens barrel includes a chassis, and a lens barrel body located above a center of the chassis; the lens cone body and the chassis are integrally formed.
Preferably, in the jig for a cemented lens according to the embodiment of the present invention, one side of the stopper has a U-shaped or rectangular opening structure to expose a part of the surface of the chassis and the lens barrel body.
Preferably, in the jig for a cemented lens according to the embodiment of the present invention, the fine adjustment screw is specifically disposed at the other side of the stopper away from the opening structure.
Preferably, in the jig for a cemented lens according to the embodiment of the present invention, the two positioning screws are respectively disposed at two sides of the opening structure and are both disposed on the upper surface of the chassis.
Preferably, in the jig for a cemented lens according to the embodiment of the present invention, the fine adjustment jackscrew is inserted through a plurality of holes on the lens barrel body.
Preferably, in the jig for a cemented lens according to the embodiment of the present invention, one surface of the single lens having optical power is a plane, and the other surface is a convex surface; the upper surface of the non-optical power single lens is in direct contact with the plane of the optical power single lens; the fine-tuning jackscrew specifically abuts against the side surface of the all-optical-power single lens.
Preferably, in the jig for a cemented lens according to the embodiment of the present invention, the stopper is connected to the auto-collimator fixing barrel by a plurality of screws.
The embodiment of the invention also provides a positioning and gluing method for the jig for the cemented lens, which comprises the following steps:
the auto-collimator is fixedly arranged in an auto-collimator fixing cylinder, and the single lens without optical power is fixedly arranged in a lens cone;
the position of the lens barrel is adjusted through a fine adjustment screw positioned at the outer side of the limiting block, so that the optical axis of the single lens without optical power is consistent with the optical axis of the auto-collimator;
positioning the lens barrel through a positioning screw positioned on the upper surface of the limiting block;
placing an optical power single lens on the upper surface of the optical power single lens;
the position of the single lens with optical power is adjusted through a fine adjustment jackscrew positioned on the lens barrel, so that the optical axis of the single lens with optical power is consistent with the optical axis of the auto-collimator;
and gluing the position-adjusted single lens with optical power and the single lens without optical power through photosensitive glue.
From the above technical solution, the fixture for a cemented lens and the positioning and gluing method provided by the invention comprise: the auto-collimator fixing barrel is used for fixedly mounting the auto-collimator; the limiting block is positioned above the auto-collimator fixing cylinder; the lens cone is positioned between the auto-collimator fixed cylinder and the limiting block and is used for fixedly mounting the single lens without optical power; the fine tuning screw is positioned at the outer side of the limiting block and used for adjusting the position of the lens barrel; the positioning screw is positioned on the upper surface of the limiting block and used for positioning the lens barrel; and the fine adjustment jackscrew is positioned on the lens barrel and used for adjusting the position of the single lens with optical power.
The fixture provided by the invention can glue the single lens without optical power and the single lens with optical power by using a mechanical structure and an auto-collimation principle, and ensure the consistency of optical axes of the single lens without optical power and the single lens with optical power.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a fixture for a cemented lens according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of the auto-collimator, the single lens without optical power and the single lens with optical power according to the embodiment of the present invention;
fig. 3 is a flowchart of a positioning and gluing method according to an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention provides a fixture for a cemented lens, as shown in fig. 1 and 2, comprising:
an auto-collimator fixing barrel 1 for fixedly mounting the auto-collimator 01;
the limiting block 2 is positioned above the auto-collimator fixing cylinder 1;
the lens barrel 3 is positioned between the auto-collimator fixed barrel 1 and the limiting block 2 and is used for fixedly mounting the single lens 02 without optical power;
the fine tuning screw 4 is positioned outside the limiting block 2 and used for adjusting the position of the lens barrel 3;
the positioning screw 5 is positioned on the upper surface of the limiting block 2 and used for positioning the lens barrel 3;
a fine adjustment jackscrew 6, which is positioned on the lens barrel 3 and used for adjusting the position of the single lens 03 with optical power.
In the jig for a cemented lens according to the embodiment of the present invention, the jig includes: the lens barrel is adjusted through the fine adjustment screw, the optical axis of the single lens without optical power is consistent with that of the auto-collimator, then the position of the single lens without optical power is positioned through the positioning screw, the single lens with optical power is placed on the single lens without optical power, the position of the single lens with optical power is adjusted through the fine adjustment screw, and the single lens with optical power is consistent with that of the auto-collimator, so that the two single lenses can be glued. Compared with the prior gluing jig, the jig can finish the gluing of the single lens without optical power and the single lens with optical power by using the mechanical structure and the auto-collimation principle, and ensure the consistency of the optical axes of the single lens without optical power and the single lens with optical power.
In a specific implementation, in the jig for a cemented lens according to the embodiment of the present invention, as shown in fig. 1, the lens barrel 3 may be freely rotated without a stagnation, and at this time, the fine adjustment screw 4 may be specifically used to adjust the movement of the lens barrel 3 in a direction approaching or separating from the fine adjustment screw 4 and the rotation of the lens barrel 3 itself. Since the lens barrel 3 is fixedly provided with the single lens without optical power inside, the movement and rotation of the lens barrel 3 are regulated by the fine adjustment screw 4, and the position of the single lens without optical power is regulated by the fine adjustment screw 4.
In specific implementation, in the jig for a cemented lens provided in the embodiment of the present invention, as shown in fig. 1, the lens barrel 3 may include a chassis 32, and a lens barrel body 31 located above the center of the chassis 32; the lens barrel body 31 is integrally formed with the chassis 32. Since the lens barrel body 31 and the chassis 32 are integrally formed, the position of the entire lens barrel 3 can be adjusted by adjusting only the position of the chassis 32 by the fine adjustment screw 4.
Further, in the jig for a cemented lens according to the embodiment of the present invention, as shown in fig. 1, one side of the stopper 2 has a U-shaped or rectangular opening structure to expose a part of the surface of the chassis 32 and the lens barrel body 31. The fine adjustment screw 4 may be specifically disposed on the other side of the stopper 2 away from the opening structure, so that the fine adjustment screw 4 is convenient to adjust the position of the chassis 32, so as to adjust the position of the entire lens barrel 3.
In a specific implementation, in the jig for a cemented lens according to the embodiment of the present invention, as shown in fig. 1, two positioning screws 5 may be respectively disposed on two sides of the opening structure and on the upper surface of the chassis 32, so that the chassis 32 can be better positioned to realize positioning of the lens barrel 3.
In a specific implementation, in the jig for a cemented lens according to the embodiment of the present invention, as shown in fig. 1, the fine adjustment jackscrew 6 may be inserted through a plurality of holes in the body of the lens barrel 3.
Further, in the embodiment of the invention, as shown in fig. 2, in the jig for a cemented lens according to the embodiment of the invention, one surface of the single lens 03 having optical power is a plane, and the other surface is a convex surface; the upper surface of the non-optical power single lens 02 is in direct contact with the plane of the optical power single lens 03; the fine-tuning jackscrew 6 is specifically propped against the side surface of the single lens 03 with optical power, so that the fine-tuning jackscrew 6 is convenient for adjusting the position of the single lens 03 with optical power, and the lens cannot be scratched.
In a specific implementation, in the jig for a cemented lens according to the embodiment of the present invention, as shown in fig. 1, the stopper 2 and the auto-collimator fixing barrel 1 may be connected by a plurality of screws, and fig. 1 shows four screws, which is not limited herein.
Based on the same inventive concept, the embodiment of the present invention further provides a positioning and gluing method using the above-mentioned jig for a cemented lens, and since the principle of solving the problem in the method is similar to that of the foregoing one for a cemented lens, the implementation of the method can refer to the implementation of the jig for a cemented lens, and the repetition is omitted.
In specific implementation, as shown in fig. 3, the positioning and gluing method provided by the embodiment of the invention specifically includes the following steps:
s301, fixedly mounting an auto-collimator in an auto-collimator fixing cylinder, and fixedly mounting a single lens without optical power in a lens barrel;
s302, adjusting the position of the lens barrel through a fine adjustment screw positioned at the outer side of the limiting block to enable the optical axis of the single lens without optical power to be consistent with the optical axis of the auto-collimator;
s303, positioning the lens barrel through a positioning screw positioned on the upper surface of the limiting block;
s304, placing the single lens with optical power on the upper surface of the single lens without optical power;
s305, adjusting the position of the single lens with optical power through a fine adjustment jackscrew positioned on the lens barrel, so that the optical axis of the single lens with optical power is consistent with the optical axis of the auto-collimator;
s306, gluing the position-adjusted single lens with optical power and the single lens without optical power through photosensitive glue.
In the positioning and gluing method provided by the embodiment of the invention, the fixture for the gluing lens is adopted by the auto-collimation principle, so that the non-focal-power single lens and the focal-power single lens can be glued, and the consistency of the optical axes of the non-focal-power single lens and the focal-power single lens is ensured.
In summary, the jig for a cemented lens and the positioning and gluing method provided by the embodiments of the present invention include: the auto-collimator fixing barrel is used for fixedly mounting the auto-collimator; the limiting block is positioned above the auto-collimator fixing cylinder; the lens cone is positioned between the auto-collimator fixed cylinder and the limiting block and is used for fixedly mounting the single lens without optical power; the fine tuning screw is positioned at the outer side of the limiting block and used for adjusting the position of the lens barrel; the positioning screw is positioned on the upper surface of the limiting block and used for positioning the lens barrel; and the fine adjustment jackscrew is positioned on the lens barrel and used for adjusting the position of the single lens with optical power. The fixture can glue the single lens without optical power and the single lens with optical power by using the mechanical structure and the auto-collimation principle, and ensure the consistency of the optical axes of the single lens without optical power and the single lens with optical power.
Finally, it is further noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other.
The jig for a cemented lens and the positioning and cementing method provided by the invention are described in detail, and specific examples are applied to illustrate the principle and the implementation of the invention, and the description of the above examples is only used for helping to understand the method and the core idea of the invention; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in accordance with the ideas of the present invention, the present description should not be construed as limiting the present invention in view of the above.
Claims (9)
1. A tool for cemented lens, its characterized in that includes:
the auto-collimator fixing barrel is used for fixedly mounting the auto-collimator;
the limiting block is positioned above the auto-collimator fixing cylinder;
the lens cone is positioned between the auto-collimator fixing cylinder and the limiting block and is used for fixedly mounting the single lens without optical power;
the fine tuning screw is positioned at the outer side of the limiting block and used for adjusting the position of the lens barrel so as to enable the single lens without optical power to be consistent with the optical axis of the auto-collimator;
the positioning screw is positioned on the upper surface of the limiting block and used for positioning the lens barrel;
the fine-tuning jackscrew is positioned on the lens barrel and used for adjusting the position of the single lens with optical power so as to enable the single lens with optical power to be consistent with the optical axis of the auto-collimator; one surface of the single lens with optical power is a plane, and the other surface is a convex surface; the upper surface of the non-optical power single lens is in direct contact with the plane of the optical power single lens.
2. The jig for a cemented lens according to claim 1, wherein the fine adjustment screw is specifically used for adjusting the movement of the lens barrel in a direction approaching or departing from the fine adjustment screw and the rotation of the lens barrel itself.
3. The jig for a cemented lens according to claim 2, wherein the lens barrel includes a chassis, and a lens barrel body located above a center of the chassis; the lens cone body and the chassis are integrally formed.
4. The jig for a cemented lens according to claim 3, wherein one side of the stopper has a U-shaped or rectangular opening structure to expose a part of the surface of the chassis and the lens barrel body.
5. The jig for a cemented lens according to claim 4, wherein the fine adjustment screw is specifically provided at the other side of the stopper away from the opening structure.
6. The jig for a cemented lens according to claim 4, wherein the set screw has two, is provided on both sides of the opening structure, respectively, and is provided on an upper surface of the chassis.
7. The jig for a cemented lens according to claim 3, wherein the fine adjustment jackscrew is inserted on the barrel body through a plurality of holes.
8. The jig for a cemented lens according to claim 1, wherein the stopper is connected with the auto-collimator fixing cylinder by a plurality of screws.
9. A positional gluing method employing the jig for a cemented lens according to any one of claims 1 to 8, characterized by comprising:
the auto-collimator is fixedly arranged in an auto-collimator fixing cylinder, and the single lens without optical power is fixedly arranged in a lens cone;
the position of the lens barrel is adjusted through a fine adjustment screw positioned at the outer side of the limiting block, so that the optical axis of the single lens without optical power is consistent with the optical axis of the auto-collimator;
positioning the lens barrel through a positioning screw positioned on the upper surface of the limiting block;
placing an optical power single lens on the upper surface of the optical power single lens; one surface of the single lens with optical power is a plane, and the other surface is a convex surface; the upper surface of the non-optical power single lens is in direct contact with the plane of the optical power single lens;
the position of the single lens with optical power is adjusted through a fine adjustment jackscrew positioned on the lens barrel, so that the optical axis of the single lens with optical power is consistent with the optical axis of the auto-collimator;
and gluing the position-adjusted single lens with optical power and the single lens without optical power through photosensitive glue.
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CN201910007782.4A CN109471234B (en) | 2019-01-04 | 2019-01-04 | Jig for cementing lens and positioning cementing method |
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CN201910007782.4A CN109471234B (en) | 2019-01-04 | 2019-01-04 | Jig for cementing lens and positioning cementing method |
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CN109471234A CN109471234A (en) | 2019-03-15 |
CN109471234B true CN109471234B (en) | 2024-01-26 |
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Families Citing this family (1)
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CN111338390A (en) * | 2020-04-08 | 2020-06-26 | 西安光衡光电科技有限公司 | Cemented lens centering control method and system and full-automatic cementing equipment |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SU533198A1 (en) * | 1975-10-13 | 1994-03-30 | Ю.А. Степин | Method of assembling glued lens and frames |
JP2012018319A (en) * | 2010-07-08 | 2012-01-26 | Konica Minolta Opto Inc | Actuator unit, imaging apparatus, and method for adjusting actuator unit |
CN102959447A (en) * | 2010-07-07 | 2013-03-06 | 松下电器产业株式会社 | Lens unit |
CN104483740A (en) * | 2014-11-20 | 2015-04-01 | 中国工程物理研究院激光聚变研究中心 | Coaxial lens precision axis positioning method |
CN104977692A (en) * | 2015-06-24 | 2015-10-14 | 中国科学院西安光学精密机械研究所 | Optical axis determining method in cemented lens centering processing |
CN205067840U (en) * | 2015-10-09 | 2016-03-02 | 南京茂莱光学科技股份有限公司 | Abbe prism veneer timing device |
CN209117951U (en) * | 2019-01-04 | 2019-07-16 | 长春博信光电子有限公司 | A kind of jig for balsaming lens |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4569457B2 (en) * | 2005-10-14 | 2010-10-27 | 富士フイルム株式会社 | Method for producing cemented lens, cemented lens, and projector apparatus. |
-
2019
- 2019-01-04 CN CN201910007782.4A patent/CN109471234B/en active Active
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SU533198A1 (en) * | 1975-10-13 | 1994-03-30 | Ю.А. Степин | Method of assembling glued lens and frames |
CN102959447A (en) * | 2010-07-07 | 2013-03-06 | 松下电器产业株式会社 | Lens unit |
JP2012018319A (en) * | 2010-07-08 | 2012-01-26 | Konica Minolta Opto Inc | Actuator unit, imaging apparatus, and method for adjusting actuator unit |
CN104483740A (en) * | 2014-11-20 | 2015-04-01 | 中国工程物理研究院激光聚变研究中心 | Coaxial lens precision axis positioning method |
CN104977692A (en) * | 2015-06-24 | 2015-10-14 | 中国科学院西安光学精密机械研究所 | Optical axis determining method in cemented lens centering processing |
CN205067840U (en) * | 2015-10-09 | 2016-03-02 | 南京茂莱光学科技股份有限公司 | Abbe prism veneer timing device |
CN209117951U (en) * | 2019-01-04 | 2019-07-16 | 长春博信光电子有限公司 | A kind of jig for balsaming lens |
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