CN204556961U - A kind of adjustable type laser beam expander - Google Patents
A kind of adjustable type laser beam expander Download PDFInfo
- Publication number
- CN204556961U CN204556961U CN201520268475.9U CN201520268475U CN204556961U CN 204556961 U CN204556961 U CN 204556961U CN 201520268475 U CN201520268475 U CN 201520268475U CN 204556961 U CN204556961 U CN 204556961U
- Authority
- CN
- China
- Prior art keywords
- object lens
- eyepiece
- bobbin
- inner core
- ring flange
- 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.)
- Expired - Fee Related
Links
Landscapes
- Lens Barrels (AREA)
Abstract
The utility model discloses a kind of adjustable type laser beam expander, comprise the ocular unit connected successively, large lens barrel and object lens, each assembly in ocular unit adopts sleeve fashion to connect, in adjustment lens combination interval procedure, effectively ensure the right alignment of optical system and the stability of system; Large lens barrel connects firmly with ocular unit and the coaxial flange of object lens respectively, and assembling is simple, compact conformation; This structure degree of regulation is high, and be easy to debugging and safeguard, design cost is low, effectively can realize laser beam expanding.
Description
Technical field
The utility model belongs to technical field of optical instrument, especially relates to a kind of adjustable type laser beam expander.
Background technology
Laser beam expander has in fields such as such as laser radar, laser ranging and optical communications to be applied very widely.Laser beam is Gaussian beam, in communication process, have the angle of divergence, and this can cause hot spot to spread, energy loss.Use laser beam expander, by the way of expansion of laser light beam waist diameter, laser beam divergence can be reduced, improve the collimation of Laser emission.Have strict requirement for remote laser detection system to laser beam expander right alignment, the deviation of right alignment can have a strong impact on range capability and the range finding directive property of system.
The temperature difference of laser beam expander in environment for use is very large, beam expander lens barrel is made to produce thermal deformation, cause the change of optical interval between object lens and eyepiece, in order to compensate the impact of thermal deformation, need the distance between lens combination before and after mobile laser beam expander, before and after ensureing again, the right alignment of lens combination meets the demands simultaneously.And current existing adjustable type laser beam expander ensures the complex structure of right alignment, higher to commissioning requirements, and cannot ensure that in debug process right alignment meets system requirements all the time, greatly limit range capability and the distance accuracy of laser detection system.
Utility model content
In order to overcome the deficiency of above technology, the utility model provides a kind of adjustable type laser beam expander, and simply, the adjustable type laser beam expander of highly versatile, can keep higher system coaxial degree in adjustment lens combination spacing process for compact conformation, assembling.
Technical solution of the present utility model is: the utility model provides a kind of adjustable type laser beam expander, comprises the ocular unit connected successively, large lens barrel and object lens.
Described large lens barrel respectively with ocular unit and object lens Flange joint.
Described ocular unit comprises the first ring flange, eyepiece trim ring, eyepiece, eyepiece inner core, eyepiece urceolus, spring and the second ring flange; Described eyepiece inner core is hollow inner cylinder, and described eyepiece is buckled in eyepiece inner core, and described eyepiece trim ring lateral wall is connected with eyepiece inner core inner thread, is pressed in eyepiece side, locking eyepiece; Be provided with line slide rail in described eyepiece urceolus, described spring one end withstands eyepiece inner core, and the second ring flange is overlapped in one end, and the second described ring flange is fixed on bottom eyepiece urceolus, and described eyepiece inner core, spring are arranged in line slide rail; The first described ring flange slides adjustable in eyepiece urceolus, and slidably pushing tow eyepiece inner core and spring successively.
Described eyepiece inner core comprises the first bobbin, described eyepiece trim ring lateral wall is connected with the first bobbin inner thread, first method orchid dish bobbin cramp is provided with outside the first described bobbin, the first described ring flange withstands on outside the first ring flange bobbin cramp, the first described ring flange bobbin cramp has symmetrical ears disk, described symmetrical ears disk has the second bobbin, and the second described bobbin has spring card slot; Described spring top is on spring card slot; The first described ring flange bobbin cramp is hollow cylindrical, the internal diameter of the first ring flange bobbin cramp is less than the first bobbin, external diameter is greater than the first bobbin, described symmetrical ears disk is hollow, ears are semicircle shape, the internal diameter of symmetrical ears disk is greater than the first bobbin and the second bobbin, and internal diameter is identical with the second bobbin, and the internal diameter of the second described bobbin is greater than the first bobbin.
Described eyepiece urceolus is hollow, comprises the first inner core of accommodation first ring flange, and the first described inner core inwall is threaded with the first ring flange disk lateral wall; The first described inner core has line slide rail, described line slide rail comprises the second inner core holding symmetrical ears disk, the second described inner core has the 3rd inner core holding spring, and the 3rd described inner core has the pickup groove for fixing the second ring flange.
Described object lens comprises the first mirror trim ring, the first object lens, the second mirror trim ring, the second object lens and three-flange dish; Described three-flange dish is threaded flange dish; The first described object lens are buckled in three-flange dish bobbin, and the first described mirror trim ring lateral wall is connected with three-flange dish bobbin inner thread, is pressed in the first object lens side, locks the first object lens; The second described object lens are buckled in three-flange dish bobbin, and the second described mirror trim ring lateral wall is connected with three-flange dish bobbin inner thread, is pressed in the second object lens side, locks the second object lens; Be provided with dividing plate between the second described object lens and the first object lens, the second object lens and the first object lens are arranged in order along optical axis direction.
Described large lens barrel is bottle shape, comprises the 4th ring flange that bobbin is downward, and the 4th described ring flange has cone bucket, and described cone bucket has cylinder, and described cylinder has ring flange interface.
Described ocular unit comprises an eyepiece, and described eyepiece is a diverging meniscus lens; Object lens comprises the first object lens and the second object lens, and the second described object lens are a diverging meniscus lens; The first described object lens are a positive biconvex lens; Described eyepiece, the second object lens and the first object lens are arranged in order along optical axis direction.
A kind of adjustable type laser beam expander according to claim 8, it is characterized in that: described eyepiece bore is 14mm, center thickness is 2mm, focal length is 55.25mm, convex surface is towards incident light direction, the bore of the second described object lens is 84mm, center thickness is 7mm, focal length is 2006.49mm, convex surface is towards incident light direction, the bore of the first described object lens is 84mm, center thickness is 14mm, focal length is 357.54mm, the second described object lens and the first object lens be spaced apart 5.00mm, described eyepiece, second object lens and the first object lens all adopt K9 materials processing to form, and be coated with 532nm high transmittance film, the optical interval of described eyepiece and the second object lens is 360mm.
The beneficial effects of the utility model are: a kind of adjustable type laser beam expander, contrast existing adjustable type laser beam expander, each assembly in ocular unit adopts sleeve fashion to connect, in adjustment lens combination interval procedure, effectively ensure the right alignment of optical system and the stability of system; Large lens barrel connects firmly with ocular unit and the coaxial flange of object lens respectively, and assembling is simple, compact conformation; This structure degree of regulation is high, and be easy to debugging and safeguard, design cost is low, effectively can realize laser beam expanding.
Accompanying drawing explanation
Fig. 1 is schematic appearance of the present utility model;
Fig. 2 is sectional structure schematic diagram of the present utility model;
Fig. 3 is the structural representation of eyepiece inner core of the present utility model;
Fig. 4 is the schematic appearance of eyepiece inner core of the present utility model;
Fig. 5 is the A-A cut-open view of eyepiece inner core of the present utility model;
Fig. 6 is the structural representation of eyepiece urceolus of the present utility model;
Fig. 7 is the schematic appearance of eyepiece urceolus of the present utility model;
Fig. 8 is the A-A cut-open view of eyepiece urceolus of the present utility model;
Fig. 9 is a specific embodiment index path of the present utility model;
Figure 10 is large lens barrel structure figure of the present utility model;
In figure: 1-first ring flange, 2-eyepiece trim ring, 3-eyepiece, 4-eyepiece inner core, 4-1-first bobbin, 4-2-first ring flange bobbin cramp, the symmetrical ears disk of 4-3-, 4-4-second bobbin, 5-eyepiece urceolus, 5-1-first inner core, 5-2-second inner core, 5-3-the 3rd inner core, 5-4-pickup groove, 6-spring, 7-second ring flange, the large lens barrel of 8-, 8-1-the 4th ring flange, 8-2-bores bucket, 8-3-cylinder, 8-4-three-flange dish interface, 9-1-first mirror trim ring, 9-2-second mirror trim ring, 10-1-first object lens, 10-2-second object lens, 11-objective tube.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further.
As Fig. 1, a kind of adjustable type laser beam expander, comprises the ocular unit connected successively, large lens barrel 8 and object lens.Large lens barrel 8 respectively with ocular unit and object lens Flange joint.
As Fig. 2, ocular unit comprises the first ring flange 1, eyepiece trim ring 2, eyepiece 3, eyepiece inner core 4, eyepiece urceolus 5, spring 6 and the second ring flange 7; Described eyepiece inner core 4 is hollow inner cylinder, and described eyepiece 3 is buckled in eyepiece inner core 4, and described eyepiece trim ring 2 lateral wall is connected with eyepiece inner core 4 inner thread, is pressed in eyepiece 3 side, locking eyepiece 3; Line slide rail 5-5 is provided with in described eyepiece urceolus 5, eyepiece inner core 4 is withstood in described spring 6 one end, the second ring flange 7 is overlapped in one end, and the second described ring flange 7 is fixed on bottom eyepiece urceolus 5, and described eyepiece inner core 4, spring 6 are arranged in line slide rail 5-5; The first described ring flange 1 slides adjustable in eyepiece urceolus 5, and slidably pushing tow eyepiece inner core 4 and spring 6 successively.
As shown in Fig. 3, Fig. 4 and Fig. 5, eyepiece inner core 4 comprises the first bobbin 4-1, described eyepiece trim ring 2 lateral wall is connected with the first bobbin 4-1 inner thread, first method orchid dish bobbin cramp 4-2 is provided with outside the first described bobbin 4-1, the first described ring flange 1 withstands on outside the first ring flange bobbin cramp 4-2, the first described ring flange bobbin cramp 4-2 has symmetrical ears disk 4-3, described symmetrical ears disk 4-3 has the second bobbin 4-4, and the second described bobbin 4-4 has spring card slot 4-5; Described spring 6 withstands on spring card slot 4-5; The first described ring flange bobbin cramp 4-2 is hollow cylindrical, the internal diameter of the first ring flange bobbin cramp 4-2 is less than the first bobbin 4-1, external diameter is greater than the first bobbin 4-1, described symmetrical ears disk 4-3 is hollow, ears are semicircle shape, the internal diameter of symmetrical ears disk 4-3 is greater than the first bobbin 4-1 and the second bobbin 4-4, and internal diameter is identical with the second bobbin 4-4, and the internal diameter of the second described bobbin 4-4 is greater than the first bobbin 4-1.
As shown in Fig. 6, Fig. 7 and Fig. 8, eyepiece urceolus 5 is hollow, comprises the first inner core 5-1 of accommodation first ring flange 1, and the first described inner core 5-1 inwall is threaded with the first ring flange 1 disk lateral wall; The first described inner core 5-1 has line slide rail 5-5, described line slide rail 5-5 comprises the second inner core 5-2 holding symmetrical ears disk 4-3, the second described inner core 5-2 has the 3rd inner core 5-3 holding spring 6, and the 3rd described inner core 5-3 has the pickup groove 5-4 for fixing the second ring flange.
As Fig. 2, object lens comprises thing first mirror trim ring 9-1, the first object lens 10-1, the second mirror trim ring 9-2, the second object lens 10-2 and three-flange dish 11; Described three-flange dish 11 is threaded flange dish; The first described object lens 10-1 is buckled in three-flange dish 11 bobbin, and the first described mirror trim ring 9-1 lateral wall is connected with three-flange dish 11 bobbin inner thread, is pressed in the first object lens 10-1 side, locks the first object lens 10-1; The second described object lens 10-2 is buckled in three-flange dish 11 bobbin, and the second described mirror trim ring 9-2 lateral wall is connected with three-flange dish 11 bobbin inner thread, is pressed in the second object lens 10-2 side, locks the second object lens 10-2; Be provided with dividing plate between the second described object lens 10-2 and the first object lens 10-1, the second object lens 10-2 and the first object lens 10-1 is arranged in order along optical axis direction.
As Figure 10, large lens barrel 8 is bottle shape, comprises the 4th ring flange 8-1 that bobbin is downward, and the 4th described ring flange 8-1 has cone bucket 8-2, and described cone bucket 8-2 has cylinder 8-3, and described cylinder 8-3 has three-flange dish interface 8-4.
As Fig. 9, described ocular unit comprises an eyepiece 3, and described eyepiece 3 is a diverging meniscus lens; Object lens comprises the first object lens 10-1 and the second object lens 10-2, and the second described object lens 10-2 is a diverging meniscus lens; The first described object lens 10-1 is a positive biconvex lens; Described eyepiece 3, second object lens 10-2 and the first object lens 10-1 is arranged in order along optical axis direction.
Provide the design parameter of the utility model specific embodiment below: eyepiece 3 bore is 14mm, center thickness is 2mm, focal length is 55.25mm, convex surface is towards incident light direction, the bore of the second described object lens 10-2 is 84mm, center thickness is 7mm, focal length is 2006.49mm, convex surface is towards incident light direction, the bore of the first described object lens 10-1 is 84mm, center thickness is 14mm, focal length is 357.54mm, the second described object lens 10-2 and the first object lens 10-1 is spaced apart 5mm, described eyepiece 3, second object lens 10-2 and the first object lens 10-1 all adopts K9 materials processing to form, and be coated with 532nm high transmittance film, described eyepiece 3 and the optical interval of the second object lens 10-2 are 360mm.
The utility model use procedure: be fixed in eyepiece inner core 4 by the required lens 3 expanding ratio, after assembling, regulates the optical interval of eyepiece and objective lens by rotating the first ring flange 1, make the laser beam of outgoing be parallel beam.
The utility model solves adjustable type beam expander in the past and is loading in optical system, and right alignment is difficult to ensure, the problem that debugging is complicated.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various amendment or supplements or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present utility model or surmount the scope that appended claims defines.
Claims (9)
1. an adjustable type laser beam expander, is characterized in that: comprise the ocular unit connected successively, large lens barrel (8) and object lens.
2. a kind of adjustable type laser beam expander according to claim 1, is characterized in that: described large lens barrel (8) respectively with ocular unit and object lens Flange joint.
3. a kind of adjustable type laser beam expander according to claim 1, is characterized in that: described ocular unit comprises the first ring flange (1), eyepiece trim ring (2), eyepiece (3), eyepiece inner core (4), eyepiece urceolus (5), spring (6) and the second ring flange (7); Described eyepiece inner core (4) is hollow inner cylinder, and described eyepiece (3) is buckled in eyepiece inner core (4), and described eyepiece trim ring (2) lateral wall is connected with eyepiece inner core (4) inner thread, is pressed in eyepiece (3) side, locking eyepiece (3); Line slide rail (5-5) is provided with in described eyepiece urceolus (5), eyepiece inner core (4) is withstood in described spring (6) one end, the second ring flange (7) is overlapped in one end, described the second ring flange (7) is fixed on eyepiece urceolus (5) bottom, and described eyepiece inner core (4), spring (6) are arranged in line slide rail (5-5); Described the first ring flange (1) slides adjustable in eyepiece urceolus (5), and slidably pushing tow eyepiece inner core (4) and spring (6) successively.
4. a kind of adjustable type laser beam expander according to claim 3, it is characterized in that: described eyepiece inner core (4) comprises the first bobbin (4-1), described eyepiece trim ring (2) lateral wall is connected with the first bobbin (4-1) inner thread, first method orchid dish bobbin cramp (4-2) is provided with outside described the first bobbin (4-1), described the first ring flange (1) withstands on the first ring flange bobbin cramp (4-2) outward, the first described ring flange bobbin cramp (4-2) has symmetrical ears disk (4-3), described symmetrical ears disk (4-3) has the second bobbin (4-4), described the second bobbin (4-4) has spring card slot (4-5), described spring (6) withstands on spring card slot (4-5), the first described ring flange bobbin cramp (4-2) is hollow cylindrical, the internal diameter of the first ring flange bobbin cramp (4-2) is less than the first bobbin (4-1), external diameter is greater than the first bobbin (4-1), described symmetrical ears disk (4-3) is hollow, ears are semicircle shape, the internal diameter of symmetrical ears disk (4-3) is greater than the first bobbin (4-1) and the second bobbin (4-4), and internal diameter is identical with the second bobbin (4-4), the internal diameter of described the second bobbin (4-4) is greater than the first bobbin (4-1).
5. a kind of adjustable type laser beam expander according to claim 3, it is characterized in that: described eyepiece urceolus (5) is hollow, comprise first inner core (5-1) of accommodation first ring flange (1), described the first inner core (5-1) inwall is threaded with the first ring flange (1) disk lateral wall; Described the first inner core (5-1) has line slide rail (5-5), described line slide rail (5-5) comprises the second inner core (5-2) holding symmetrical ears disk (4-3), described the second inner core (5-2) has the 3rd inner core (5-3) holding spring (6), and the 3rd described inner core (5-3) has the pickup groove (5-4) for fixing the second ring flange.
6. a kind of adjustable type laser beam expander according to claim 3, is characterized in that: described object lens comprises the first mirror trim ring (9-1), the first object lens (10-1), the second mirror trim ring (9-2), the second object lens (10-2) and three-flange dish (11); Described three-flange dish (11) is threaded flange dish; Described the first object lens (10-1) are buckled in three-flange dish (11) bobbin, the first described mirror trim ring (9-1) lateral wall is connected with three-flange dish (11) bobbin inner thread, be pressed in the first object lens (10-1) side, lock the first object lens (10-1); Described the second object lens (10-2) are buckled in three-flange dish (11) bobbin, the second described mirror trim ring (9-2) lateral wall is connected with three-flange dish (11) bobbin inner thread, be pressed in the second object lens (10-2) side, lock the second object lens (10-2); Be provided with dividing plate between described the second object lens (10-2) and the first object lens (10-1), the second object lens (10-2) and the first object lens (10-1) are arranged in order along optical axis direction.
7. a kind of adjustable type laser beam expander according to claim 3, it is characterized in that: described large lens barrel (8) is bottle shape, comprise the 4th ring flange (8-1) that bobbin is downward, the 4th described ring flange (8-1) has cone bucket (8-2), described cone bucket (8-2) has cylinder (8-3), and described cylinder (8-3) has three-flange dish interface (8-4).
8. a kind of adjustable type laser beam expander according to claim 1, is characterized in that: described ocular unit comprises an eyepiece (3), and described eyepiece (3) is a diverging meniscus lens; Object lens comprises the first object lens (10-1) and the second object lens (10-2), and described the second object lens (10-2) are a diverging meniscus lens; Described the first object lens (10-1) are a positive biconvex lens; Described eyepiece (3), the second object lens (10-2) and the first object lens (10-1) are arranged in order along optical axis direction.
9. a kind of adjustable type laser beam expander according to claim 8, it is characterized in that: described eyepiece (3) bore is 14mm, center thickness is 2mm, focal length is 55.25mm, convex surface is towards incident light direction, the bore of described the second object lens (10-2) is 84mm, center thickness is 7mm, focal length is 2006.49mm, convex surface is towards incident light direction, the bore of described the first object lens (10-1) is 84mm, center thickness is 14mm, focal length is 357.54mm, described the second object lens (10-2) and the first object lens (10-1) be spaced apart 5.00mm, described eyepiece (3), second object lens (10-2) and the first object lens (10-1) all adopt K9 materials processing to form, and be coated with 532nm high transmittance film, described eyepiece (3) is 360mm with the optical interval of the second object lens (10-2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520268475.9U CN204556961U (en) | 2015-04-29 | 2015-04-29 | A kind of adjustable type laser beam expander |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520268475.9U CN204556961U (en) | 2015-04-29 | 2015-04-29 | A kind of adjustable type laser beam expander |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204556961U true CN204556961U (en) | 2015-08-12 |
Family
ID=53832055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520268475.9U Expired - Fee Related CN204556961U (en) | 2015-04-29 | 2015-04-29 | A kind of adjustable type laser beam expander |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204556961U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105372819A (en) * | 2015-12-15 | 2016-03-02 | 重庆触视科技有限公司 | Holographic laser adjustable beam expanding lens |
-
2015
- 2015-04-29 CN CN201520268475.9U patent/CN204556961U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105372819A (en) * | 2015-12-15 | 2016-03-02 | 重庆触视科技有限公司 | Holographic laser adjustable beam expanding lens |
| CN105372819B (en) * | 2015-12-15 | 2018-01-09 | 重庆触视科技有限公司 | The adjustable beam expanding lens of holographic laser |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104181691B (en) | Based on the folding scanning optics of MEMS micro mirror | |
| CN103293666B (en) | Secondary mirror is the coaxial four catoptrons initiatively varifocal optical system of sphere | |
| CN103309044A (en) | Method for shaping circular beams into ring beams | |
| CN104316982A (en) | Fresnel-dual-lens-unit-based visible light communication receiving antenna design method | |
| CN104536151A (en) | Quick alignment device | |
| CN103048778B (en) | Infinite image distance microobjective optical system | |
| CN204556961U (en) | A kind of adjustable type laser beam expander | |
| CN204101825U (en) | In a kind of semiconductor laser, micro optical lens realizes the accurate on-Line Monitor Device debug | |
| CN106597632A (en) | Ellipsoidal reflector perifocus high-precision positioning device and method | |
| CN106646896A (en) | Flow cytometer light beam shaping system based on gradient refractive index lens | |
| CN204269930U (en) | A kind of fine position device of laser facula | |
| CN109656007A (en) | Varifocal optical system and imaging device | |
| CN102621666B (en) | Telescope objective optical system | |
| CN204269929U (en) | A kind of regulating device of laser spot position | |
| CN103511983B (en) | A kind of LED collimation optics | |
| CN107861251B (en) | Hollow beam laser cools down column type integrating sphere device | |
| CN104536148A (en) | Device and method for rapidly aligning light beams of mirror surface position indicator | |
| CN109613708A (en) | A kind of hollow four trap system of local based on dual beam configuration | |
| CN204360026U (en) | One realizes mirror surface position finder light beam fast alignment device | |
| CN208737107U (en) | A kind of annular beam converting means | |
| CN104503082B (en) | Compound imaging simulation optical system | |
| CN209028289U (en) | A kind of off-axis three anti-non-focus optical system | |
| CN102819109A (en) | Optical system for generating bottle beam by LED (Light-Emitting Diode) light source | |
| CN102623286B (en) | Coaxial optical pumping device and manufacturing method thereof | |
| CN208255548U (en) | The adjustable two waveband laser focusing system of focus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150812 Termination date: 20160429 |