CN112271541A - Lens assembly and laser - Google Patents
Lens assembly and laser Download PDFInfo
- Publication number
- CN112271541A CN112271541A CN202011261490.2A CN202011261490A CN112271541A CN 112271541 A CN112271541 A CN 112271541A CN 202011261490 A CN202011261490 A CN 202011261490A CN 112271541 A CN112271541 A CN 112271541A
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- Prior art keywords
- lens
- sidewall
- base
- lens assembly
- laser
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Links
- 239000003292 glue Substances 0.000 description 22
- 238000000034 method Methods 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 239000011521 glass Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
- H01S3/08—Construction or shape of optical resonators or components thereof
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Optics & Photonics (AREA)
- Lens Barrels (AREA)
Abstract
The utility model provides a lens subassembly and laser instrument, relates to laser instrument lens location technical field, including lens and mirror base, the lens has the first lateral wall that is cambered surface structure and the second lateral wall that is planar structure, and the mirror base has the supporting part that is planar structure, second lateral wall and supporting part fixed connection to make lens and mirror base fixed connection, first lateral wall exposes outside the supporting part. The lens assembly and the laser can improve the reliability of the laser.
Description
Technical Field
The invention relates to the technical field of laser lens positioning, in particular to a lens assembly and a laser.
Background
In the production and debugging process of the solid laser, the angle of the lens needs to be adjusted through a precise mechanical structure so as to obtain the maximum power output and good beam quality. In the laser industry, it is common that all lenses are bonded with corresponding mechanical lens bases in advance through glue, and then the lenses are integrally embedded into a laser system for integration, so as to realize the operation of a laser.
Currently, circular lenses or square lenses are commonly used in the laser industry, wherein the circular lenses have a wider application range, but the circular lenses have the following disadvantages: because the expansion coefficients of the lens and the glue are difficult to be consistent, and the bonding strength of the glue is required to be high in the application of the occasion, the risk of tearing the lens at the boundary of the lens and the glue is easily caused, the optical path of the laser is deviated after the lens is torn, the crack is further expanded, and even the complete failure of the whole laser is caused.
Disclosure of Invention
The invention aims to provide a lens assembly and a laser, which can improve the reliability of the laser.
The embodiment of the invention is realized by the following steps:
in one aspect of the embodiments of the present invention, a lens assembly is provided, which includes a lens and a lens holder, wherein the lens has a first sidewall in a cambered surface structure and a second sidewall in a planar structure, the lens holder has a bearing portion in a planar structure, the second sidewall is fixedly connected to the bearing portion, so that the lens is fixedly connected to the lens holder, and the first sidewall is exposed outside the bearing portion. The lens assembly can improve the reliability of the laser.
Optionally, in a preferred embodiment of the present invention, the lens and the lens holder are symmetrical along a direction perpendicular to the second sidewall, and the lens holder are disposed opposite to each other.
Optionally, in a preferred embodiment of the present invention, along a length direction of the second sidewall, a length of the second sidewall is greater than a length of the carrying portion, so that two sides of the second sidewall are exposed outside the carrying portion.
Optionally, in a preferred embodiment of the present invention, along a width direction of the second sidewall, a width of the second sidewall is smaller than or equal to a width of the carrying portion, so that at least one side of the carrying portion is exposed outside the second sidewall.
Optionally, in a preferred embodiment of the present invention, the mirror base includes a base and a carrying platform disposed on the base, two sides of the carrying platform are respectively provided with a clearance groove, the carrying portion is located between the two clearance grooves, two sides of the second sidewall are respectively located above the clearance grooves, and a gap is formed between the second sidewall and the corresponding clearance groove.
Optionally, in a preferred embodiment of the present invention, the two clearance grooves are respectively provided with a limiting protrusion at an outer side thereof, the second sidewall is located between the two limiting protrusions, and two sides of the first sidewall respectively abut against the corresponding limiting protrusions.
Optionally, in a preferred embodiment of the present invention, a buffer groove is disposed on a side of the base away from the plummer, and the buffer groove is located below the plummer.
Optionally, in a preferred embodiment of the present invention, the base is provided with a plurality of fixing holes, and the plurality of fixing holes are respectively located at two sides of the plummer.
Optionally, in a preferred embodiment of the present invention, the second sidewall is fixed to the bearing portion by adhesion.
In another aspect of the present invention, a laser device is provided, which includes the lens assembly. The lens assembly can improve the reliability of the laser.
The embodiment of the invention has the beneficial effects that:
this lens subassembly includes lens and mirror seat, the lens has the first lateral wall that is ARC structure and the second lateral wall that is planar structure, the mirror seat has the bearing part that is planar structure, second lateral wall and bearing part fixed connection, laminate each other through planar structure and planar structure promptly and carry out fixed connection, so that lens and mirror seat fixed connection, first lateral wall exposes outside the bearing part, with the first lateral wall that is ARC structure who effectively avoids glue to contact the lens, thereby avoid the lens to produce at the boundary department of lens and glue and tear, avoid the lens to tear because of receiving internal stress, and then effectively support the laser instrument and obtain bigger temperature and use and range of storage, improve the reliability of laser instrument.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic view of a lens assembly according to an embodiment of the present invention;
FIG. 2 is a second schematic view of a lens assembly according to an embodiment of the invention;
FIG. 3 is a third exemplary view illustrating a structure of a lens assembly according to an embodiment of the present invention;
fig. 4 is a fourth schematic structural view of a lens assembly according to an embodiment of the invention.
Icon: 100-a lens assembly; 10-a lens; 11-a first side wall; 12-a second side wall; 20-a lens base; 21-a base; 211-fixation holes; 22-a carrier table; 221-a carrier; 222-clearance groove; 223-limit protrusions; 224-buffer groove.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. 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 should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; either directly or indirectly through intervening media, or may be internal to both elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the prior art, the side wall of the circular lens and the accommodating groove of the lens base are respectively of an arc surface structure, and the arc surface structure of the side wall of the circular lens is matched with the arc surface structure of the accommodating groove of the lens base, so that the circular lens and the lens base can be bonded through glue.
However, the use of circular lenses has the following disadvantages: because the expansion coefficients of the lens and the glue are difficult to be consistent, and the bonding strength of the glue is required to be high in the application of the occasion, the risk of tearing the lens at the boundary of the lens and the glue is easily caused, the optical path of the laser is deviated after the lens is torn, the crack is further expanded, and even the complete failure of the whole laser is caused.
Therefore, the present application provides a lens assembly 100, which can prevent the lens 10 from being torn at the boundary between the lens 10 and the glue, so as to prevent the lens 10 from being torn due to the internal stress, thereby improving the reliability of the laser.
Referring to fig. 1 to 4, the present embodiment provides a lens assembly 100, which includes a lens 10 and a lens holder 20, wherein the lens 10 has a first sidewall 11 having an arc structure and a second sidewall 12 having a planar structure, the lens holder 20 has a carrying portion 221 having a planar structure, the second sidewall 12 is fixedly connected to the carrying portion 221, so that the lens 10 is fixedly connected to the lens holder 20, and the first sidewall 11 is exposed outside the carrying portion 221. The lens assembly 100 can improve the reliability of the laser. In this embodiment, the second sidewall 12 and the bearing portion 221 are fixed by gluing.
It should be noted that, firstly, as shown in fig. 1 and 2, the lens 10 has a first side wall 11 in a cambered surface structure and a second side wall 12 in a planar structure, besides, the lens 10 also has a front end surface and a rear end surface for passing light, and regarding the structure of the front end surface and the rear end surface, a person skilled in the art should be able to make reasonable selection and design according to the actual situation, and there is no specific limitation here, and the structure of the front end surface and the rear end surface may be a plane, a spherical surface or a cambered surface by way of example.
Then, how is again how to make a lens 10 having a first sidewall 11 in a curved configuration and a second sidewall 12 in a planar configuration? For example, the circular lens in the prior art may be subjected to a cutting process, so as to divide the original circular arc-structured side wall surface of the circular lens into the first side wall 11 in the arc-shaped structure and the second side wall 12 in the planar structure.
It should be noted that, in order to ensure the central position of the lens 10 during use, the skilled person should be able to select and design the lens 10 according to the cut-flat height and the actual height of the lens holder 20 (or the bearing part 221).
Secondly, as shown in fig. 1 to fig. 3, the second sidewall 12 is fixedly connected to the supporting portion 221, wherein the second sidewall 12 is a planar structure, and the supporting portion 221 is also a planar structure, in other words, the planar structure and the planar structure are mutually attached to each other for fixedly connecting the lens 10 and the lens holder 20, and the first sidewall 11 is exposed out of the supporting portion 221, so as to effectively prevent the glue from contacting the first sidewall 11 of the lens 10, which is in an arc structure, thereby preventing the lens 10 from being torn at the boundary between the lens 10 and the glue, preventing the lens 10 from being torn due to internal stress, and further effectively supporting the laser to obtain a larger temperature using and storing range, and improving the reliability of the laser.
As described above, the lens assembly 100 includes the lens 10 and the lens holder 20, the lens 10 has the first sidewall 11 in the arc structure and the second sidewall 12 in the planar structure, the lens holder 20 has the carrying portion 221 in the planar structure, the second sidewall 12 is fixedly connected to the carrying portion 221, that is, the planar structure and the planar structure are mutually attached to each other for fixed connection, so that the lens 10 is fixedly connected to the lens holder 20, the first sidewall 11 is exposed out of the carrying portion 221, so as to effectively prevent the glue from contacting the first sidewall 11 in the arc structure of the lens 10, thereby preventing the lens 10 from being torn at the boundary between the lens 10 and the glue, preventing the lens 10 from being torn due to internal stress, further effectively supporting the laser to obtain a larger temperature use and storage range, and improving reliability of the laser.
Regarding the relative position relationship between the lens 10 and the lens holder 20 when the lens 10 and the lens holder 20 are fixedly connected, specifically, as shown in fig. 1, 2 and 4, in the present embodiment, the lens 10 and the lens holder 20 are symmetrical along the direction perpendicular to the second sidewall 12, and the lens 10 and the lens holder 20 are disposed opposite to each other.
In order to prevent the glue from contacting the first side wall 11 of the lens 10 in the arc structure as much as possible, as shown in fig. 1 and fig. 2, in the present embodiment, along the length direction of the second side wall 12, the length of the second side wall 12 is greater than the length of the bearing portion 221, so that two sides of the second side wall 12 are exposed outside the bearing portion 221.
Since the length of the second sidewall 12 is greater than the length of the bearing portion 221 along the length direction of the second sidewall 12, in order to improve the reliability of the fixed connection between the lens 10 and the lens holder 20, optionally, the width of the second sidewall 12 is less than or equal to the width of the bearing portion 221 along the width direction of the second sidewall 12, so that at least one side of the bearing portion 221 is exposed outside the second sidewall 12. Illustratively, in the present embodiment, the width of the second sidewall 12 is smaller than the width of the bearing part 221.
As shown in fig. 1 to 4, in the present embodiment, the lens holder 20 includes a base 21 and a bearing platform 22 disposed on the base 21, two sides of the bearing platform 22 are respectively provided with a clearance groove 222, the bearing portion 221 is located between the two clearance grooves 222, two sides of the second sidewall 12 are respectively located above the clearance grooves 222, and a gap is formed between the two clearance grooves 222 and the corresponding clearance grooves 222.
Thus, even if the glue overflows when the bearing part 221 is coated with the glue or the second sidewall 12 is bonded and fixed to the bearing part 221, there is no fear that the glue may contact the first sidewall 11 of the lens 10 in the arc structure, because the empty-keeping grooves 222 on both sides of the bearing table 22 can accommodate the glue overflowing from both sides of the bearing part 221 or between the second sidewall 12 and the bearing part 221, thereby further avoiding the glue from contacting the first sidewall 11 of the lens 10 in the arc structure.
As shown in fig. 1, 2 and 4, in the present embodiment, the two spacing protrusions 223 are respectively disposed on the outer sides of the two clearance grooves 222, the second sidewall 12 is located between the two spacing protrusions 223, and two sides of the first sidewall 11 respectively abut against the corresponding spacing protrusions 223, so as to perform spacing installation on the lens 10 through the spacing protrusions 223, so that the center position of the lens 10 is located at a preset position as much as possible, and the accuracy of the lens 10 installed on the lens base 20 is improved.
Due to the advance of the bonding technique, the lens 10 can be equivalently integrated with the lens holder 20 after being bonded to the lens holder. Since the lens 10 is generally made of glass, the toughness of the glass is poor, so the lens 10 has a weak ability to withstand deformation, and the lens holder 20 has a strong ability to withstand deformation.
In the case that the lens holder 20 or the bottom surface of the laser is uneven, the lens holder 20 may deform when being mounted on the bottom surface of the laser, and the lens 10 may not follow the lens holder 20 to deform accordingly, resulting in that the lens 10 is subjected to internal stress, which may easily result in a risk of tearing the lens 10 at the boundary between the lens 10 and the glue, and the lens 10 may cause a deviation of the optical path of the laser after being torn, and a risk of re-expanding the crack, or even cause a complete failure of the whole laser.
Therefore, as shown in fig. 1 and fig. 2, in the present embodiment, a buffer groove 224 is disposed on a side of the base 21 away from the bearing platform 22, and the buffer groove 224 is located below the bearing platform 22 to prevent a protrusion of the bottom surface of the lens holder 20 or the laser from generating a jacking force on the mounting portion of the lens holder 20 (i.e., a side of the base 21 away from the bearing platform 22), so as to prevent the lens holder 20 from tearing the lens 10 due to the uneven bottom surface of the lens holder 20 or the laser, and further prevent the lens 10 from tearing due to internal stress.
The method for fixedly connecting the lens holder 20 and the laser should be reasonably selected and designed by those skilled in the art according to practical situations, and is not limited in particular, and for example, the lens holder 20 and the laser may be screwed or adhesively fixed, etc.
Specifically, in the present embodiment, a plurality of fixing holes 211, for example, two, four, six, etc., are provided on the base 21, the plurality of fixing holes 211 are respectively located at two sides of the bearing platform 22, and the lens holder 20 and the laser can be locked and fixed by passing screws (or other fixing members) through the fixing holes 211.
In this embodiment, to facilitate the use of the lens holder 20 and avoid damage to the lens 10 or other components of the laser, the substantially peripheral edge is also chamfered.
The application also provides a laser. The laser provided by the present embodiment includes the lens assembly 100. Since the structure and advantages of the lens assembly 100 have been described in detail in the foregoing embodiments, further description is omitted here.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The lens assembly is characterized by comprising a lens and a lens base, wherein the lens is provided with a first side wall in a cambered surface structure and a second side wall in a plane structure, the lens base is provided with a bearing part in a plane structure, the second side wall is fixedly connected with the bearing part, so that the lens is fixedly connected with the lens base, and the first side wall is exposed out of the bearing part.
2. The lens assembly of claim 1, wherein the lens and the base are symmetrical in a direction perpendicular to the second sidewall, and the lens and the base are disposed opposite to each other.
3. The lens assembly of claim 2, wherein the length of the second sidewall is greater than the length of the carrier along the length of the second sidewall such that two sides of the second sidewall are exposed outside of the carrier.
4. The lens assembly of claim 3, wherein the width of the second sidewall is less than or equal to the width of the carrier along the width of the second sidewall such that at least one side of the carrier is exposed beyond the second sidewall.
5. The lens assembly of claim 3, wherein the lens holder includes a base and a supporting platform disposed on the base, the supporting platform has two side walls respectively having a clearance groove, the supporting portion is disposed between the two clearance grooves, the two side walls are respectively disposed above the clearance grooves, and a gap is formed between the two side walls and the corresponding clearance grooves.
6. The lens assembly of claim 5, wherein two spacing protrusions are respectively disposed at outer sides of the two clearance grooves, the second sidewall is located between the two spacing protrusions, and two sides of the first sidewall respectively abut against the corresponding spacing protrusions.
7. The lens assembly of claim 5, wherein a side of the base away from the platform has a buffer recess located below the platform.
8. The lens assembly of claim 5, wherein the base has a plurality of fastening holes disposed therein, the fastening holes being disposed on two sides of the platform.
9. The lens assembly of any one of claims 1-8, wherein the second sidewall is adhesively secured to the carrier.
10. A laser comprising the lens assembly of any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011261490.2A CN112271541A (en) | 2020-11-12 | 2020-11-12 | Lens assembly and laser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011261490.2A CN112271541A (en) | 2020-11-12 | 2020-11-12 | Lens assembly and laser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112271541A true CN112271541A (en) | 2021-01-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011261490.2A Pending CN112271541A (en) | 2020-11-12 | 2020-11-12 | Lens assembly and laser |
Country Status (1)
| Country | Link |
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| CN (1) | CN112271541A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113885154A (en) * | 2021-09-26 | 2022-01-04 | 武汉光迅科技股份有限公司 | Optical filter assembly and manufacturing method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103529537A (en) * | 2013-10-21 | 2014-01-22 | 中国科学院光电技术研究所 | Support structure of plane reflector on motion platform |
| CN206313279U (en) * | 2016-12-29 | 2017-07-07 | 刘玉斌 | A kind of anticracking microscope base of solid state laser |
| CN213278687U (en) * | 2020-11-12 | 2021-05-25 | 深圳市杰普特光电股份有限公司 | Lens assembly and laser |
-
2020
- 2020-11-12 CN CN202011261490.2A patent/CN112271541A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103529537A (en) * | 2013-10-21 | 2014-01-22 | 中国科学院光电技术研究所 | Support structure of plane reflector on motion platform |
| CN206313279U (en) * | 2016-12-29 | 2017-07-07 | 刘玉斌 | A kind of anticracking microscope base of solid state laser |
| CN213278687U (en) * | 2020-11-12 | 2021-05-25 | 深圳市杰普特光电股份有限公司 | Lens assembly and laser |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113885154A (en) * | 2021-09-26 | 2022-01-04 | 武汉光迅科技股份有限公司 | Optical filter assembly and manufacturing method thereof |
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