CN203164521U - Simple Cassegrain type beam expanding device - Google Patents
Simple Cassegrain type beam expanding device Download PDFInfo
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- CN203164521U CN203164521U CN 201320120942 CN201320120942U CN203164521U CN 203164521 U CN203164521 U CN 203164521U CN 201320120942 CN201320120942 CN 201320120942 CN 201320120942 U CN201320120942 U CN 201320120942U CN 203164521 U CN203164521 U CN 203164521U
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- mirror
- frame
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- holder
- primary
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Abstract
The utility model provides a simple Cassegrain type beam expanding device. The simple Cassegrain type beam expanding device comprises a base plate, a main lens bracket, an invar rod, a main lens frame, a main lens, a support frame, a secondary lens, a secondary lens seat, a secondary lens frame and a secondary lens bracket, wherein the main lens is put into the main lens frame and is fastened; the main lens frame is embedded in the main lens bracket; the secondary lens is adhered onto the secondary lens seat; the secondary lens seat is fastened to the secondary lens frame; the support frame and the main lens bracket are fixed on a pedestal; the support frame and the main lens bracket are equipped with clamping openings; the invar rod penetrates through the clamping openings of the support frame and the main lens bracket; the secondary lens bracket is equipped with clamping openings; and the secondary lens bracket penetrates through the invar rod near the side of the support frame and is locked by a tightening clamping opening. The simple Cassegrain type beam expanding device can overcome adverse phenomena such as deviation of axes of an eyepiece and an object lens, poor beam expanding quality and defocus in a conventional beam expanding device.
Description
Technical field
The utility model relates to beam expander device in a kind of optical system light path debugging, especially a kind of easy Cassegrain's formula parallel beam expand device.
Background technology
In the prior art, technique known is in the optical system light path debugging, light beam can be expanded usually.At present, known beam expander device great majority are to adopt combined type object lens and eyepiece to be used, and eyepiece is placed on the object lens back, and light beam is from eyepiece incident, the object lens outgoing, and then realize expanding.In the beam expander process, need regulate eyepiece, mainly be to regulate eyepiece and the alignment of object lens and distance between the two, and the adjusting of distance all is to adopt rotation that the eyepiece frame of eyepiece is installed basically between eyepiece and the object lens, and eyepiece frame seesaws under the drive of screw thread and realizes the adjusting of distance.In this process, the rotation of eyepiece can cause eyepiece and object lens journal offset, expand bad phenomenon such as of poor quality, and in the bigger environment of the temperature difference, the distance between eyepiece and the object lens is difficult to keep, and the out of focus phenomenon can occur, and this is the existing in prior technology weak point.
The utility model content
The purpose of this utility model, be exactly at the existing in prior technology deficiency, and a kind of technical scheme of easy Cassegrain's formula parallel beam expand device is provided, this scheme can overcome eyepiece and object lens journal offset in traditional parallel beam expand device, expands of poor quality and bad phenomenon such as out of focus occur.
This programme is realized by following technical measures: a kind of easy Cassegrain's formula parallel beam expand device comprises base plate, main glasses holder, invar bar, primary frame, primary mirror, bracing frame, secondary mirror, inferior microscope base, inferior picture frame, inferior mirror holder; Primary mirror is put primary frame into and is carried out fasteningly, and primary frame embeds main glasses holder; Secondary mirror is bonded on time microscope base, and inferior microscope base and time picture frame carry out fastening, and inferior picture frame embeds time mirror holder; Bracing frame and main glasses holder are fixed on the base; Bracing frame and main glasses holder are provided with the clamping bayonet socket; The invar bar passes the clamping bayonet socket of bracing frame and main glasses holder and locked; Secondary mirror sets up and is equipped with the clamping bayonet socket; Inferior mirror holder is passing invar bar and locked with stepping up bayonet socket by bracing frame one side.
Preferred as this programme: primary mirror is concave mirror, middle borehole, and borehole external diameter and incident beam diameter are complementary.
Preferred as this programme: secondary mirror is convex mirror, and the beam expander multiplying power of secondary mirror and the radius-of-curvature of primary mirror and secondary mirror are complementary, the round number of times of light beam between primary mirror and secondary mirror and expand multiplying power and be complementary.
Preferred as this programme: invar bar, base plate, bracing frame, inferior mirror holder and main glasses holder adopt the invar material.
Preferred as this programme: inferior mirror holder slides before and after can be on the invar bar, and inferior microscope base can be regulated pitching and the orientation angles of secondary mirror.
The beneficial effect of this programme can be learnt according to the narration to such scheme, owing in this scheme, adopt invar bar fixed eyepiece and object lens, need not to regulate by screw thread rotation the distance of eyepiece and object lens, guaranteed object lens and eyepiece axis non-migration, avoided occurring the phenomenon of out of focus.
This shows that the utility model compared with prior art has substantive distinguishing features and progress, the beneficial effect of its enforcement also is apparent.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment.
Fig. 2 is the index path of Fig. 1.
Among the figure, 1 is base plate, and 2 is main glasses holder, and 3 is the invar bar, and 4 is primary frame, and 5 is primary mirror, and 6 is bracing frame, and 7 is secondary mirror, and 8 is time microscope base, and 9 is time picture frame, and 10 is time mirror holder.
Embodiment
For clearly demonstrating the technical characterstic of this programme, below by an embodiment, and in conjunction with its accompanying drawing, this programme is set forth.
By accompanying drawing as can be seen, this programme comprises base plate, main glasses holder, invar bar, primary frame, primary mirror, bracing frame, secondary mirror, inferior microscope base, inferior picture frame, inferior mirror holder; Primary mirror is put primary frame into and is carried out fasteningly, and primary frame embeds main glasses holder; Secondary mirror is bonded on time microscope base, and inferior microscope base and time picture frame carry out fastening, and inferior picture frame embeds time mirror holder; Bracing frame and main glasses holder are fixed on the base; Bracing frame and main glasses holder are provided with the clamping bayonet socket; The invar bar passes the clamping bayonet socket of bracing frame and main glasses holder and locked; Secondary mirror sets up and is equipped with the clamping bayonet socket; Inferior mirror holder is passing invar bar and locked with stepping up bayonet socket by bracing frame one side.Primary mirror is concave mirror, middle borehole, and borehole external diameter and incident beam diameter are complementary.Secondary mirror is convex mirror, and the beam expander multiplying power of secondary mirror and the radius-of-curvature of primary mirror and secondary mirror are complementary, the round number of times of light beam between primary mirror and secondary mirror with expand multiplying power and be complementary.Invar bar, base plate, bracing frame, inferior mirror holder and main glasses holder adopt the invar material.Inferior mirror holder can slide front and back on the invar bar, and inferior microscope base can be regulated pitching and the orientation angles of secondary mirror.
Light beam incides on the secondary mirror from the borehole of primary mirror, launches from primary mirror after secondary mirror and primary mirror come back reflective, becomes hollow parallel beam behind the beam expander.Expand in the process, orientation and the luffing angle regulating the distance between primary mirror and the secondary mirror and regulate time microscope base are observed light beam after expanding with shear plate, and when the interference fringe on the shear plate was parallel, beam expander became parallel beam, and the process that expands finishes.
Claims (5)
1. easy Cassegrain's formula parallel beam expand device is characterized in that: comprise base plate (1), main glasses holder (2), invar bar (3), primary frame (4), primary mirror (5), bracing frame (6), secondary mirror (7), inferior microscope base (8), inferior picture frame (9), inferior mirror holder (10); Described primary mirror (5) is put primary frame (4) into and is carried out fasteningly, and primary frame (4) embeds main glasses holder (2); Described secondary mirror (7) is bonded on time microscope base (8), and inferior microscope base (8) and time picture frame (9) carry out fastening, and inferior picture frame (9) embeds time mirror holder (10); Support frame as described above (6) and main glasses holder (2) are fixed on the base (1); Support frame as described above (6) and main glasses holder (2) are provided with the clamping bayonet socket; Described invar bar (3) passes the clamping bayonet socket of bracing frame (6) and main glasses holder (2) and locked; Described mirror holder (10) is provided with the clamping bayonet socket; Described mirror holder (10) passing invar bar (3) and locked with clamping bayonet socket by bracing frame (6) one sides.
2. a kind of easy Cassegrain's formula parallel beam expand device according to claim 1, it is characterized in that: primary mirror (5) is concave mirror, middle borehole, borehole external diameter and incident beam diameter are complementary.
3. a kind of easy Cassegrain's formula parallel beam expand device according to claim 1 and 2, it is characterized in that: secondary mirror (7) is convex mirror, the radius-of-curvature of the beam expander multiplying power of secondary mirror (7) and primary mirror (5) and secondary mirror (7) is complementary, the round number of times of light beam between primary mirror (5) and secondary mirror (7) with expand multiplying power and be complementary.
4. a kind of easy Cassegrain's formula parallel beam expand device according to claim 1 and 2 is characterized in that: invar bar (3), base plate (1), bracing frame (6), inferior mirror holder (10) and main glasses holder (2) employing invar material.
5. a kind of easy Cassegrain's formula parallel beam expand device according to claim 1 and 2 is characterized in that: inferior mirror holder (10) can slide before and after invar bar (3) is gone up, and inferior microscope base (8) can be regulated pitching and the orientation angles of secondary mirror (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320120942 CN203164521U (en) | 2013-03-18 | 2013-03-18 | Simple Cassegrain type beam expanding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320120942 CN203164521U (en) | 2013-03-18 | 2013-03-18 | Simple Cassegrain type beam expanding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203164521U true CN203164521U (en) | 2013-08-28 |
Family
ID=49025695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320120942 Expired - Fee Related CN203164521U (en) | 2013-03-18 | 2013-03-18 | Simple Cassegrain type beam expanding device |
Country Status (1)
| Country | Link |
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| CN (1) | CN203164521U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104121994A (en) * | 2014-07-10 | 2014-10-29 | 中国科学院上海光学精密机械研究所 | Transient grating effect based femtosecond laser pulse measuring device |
| CN105487198A (en) * | 2015-12-22 | 2016-04-13 | 中国科学院长春光学精密机械与物理研究所 | Axially adjustable secondary mirror support mechanism |
| CN107991747A (en) * | 2017-09-15 | 2018-05-04 | 北京仿真中心 | A kind of optical system is without thermalization mechanical device |
| CN110456498A (en) * | 2019-08-06 | 2019-11-15 | 南京英田光学工程股份有限公司 | Based on the adjustable main beam-expanding system for carrying out Control Thermal Deformation with reversed thermal compensation |
-
2013
- 2013-03-18 CN CN 201320120942 patent/CN203164521U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104121994A (en) * | 2014-07-10 | 2014-10-29 | 中国科学院上海光学精密机械研究所 | Transient grating effect based femtosecond laser pulse measuring device |
| CN105487198A (en) * | 2015-12-22 | 2016-04-13 | 中国科学院长春光学精密机械与物理研究所 | Axially adjustable secondary mirror support mechanism |
| CN107991747A (en) * | 2017-09-15 | 2018-05-04 | 北京仿真中心 | A kind of optical system is without thermalization mechanical device |
| CN107991747B (en) * | 2017-09-15 | 2024-03-19 | 北京仿真中心 | Athermalization mechanical device of optical system |
| CN110456498A (en) * | 2019-08-06 | 2019-11-15 | 南京英田光学工程股份有限公司 | Based on the adjustable main beam-expanding system for carrying out Control Thermal Deformation with reversed thermal compensation |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130828 Termination date: 20160318 |