CN204028474U - Lyot depolarizer - Google Patents
Lyot depolarizer Download PDFInfo
- Publication number
- CN204028474U CN204028474U CN201420467773.6U CN201420467773U CN204028474U CN 204028474 U CN204028474 U CN 204028474U CN 201420467773 U CN201420467773 U CN 201420467773U CN 204028474 U CN204028474 U CN 204028474U
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- China
- Prior art keywords
- annulus post
- quartz crystal
- annulus
- internal diameter
- post
- Prior art date
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Abstract
The utility model provides a kind of Lyot depolarizer, comprise stationary installation, the first quartz crystal, the second quartz crystal and 1/4 achromatic waveplate, the first quartz crystal is cylindrical, the second quartz crystal is cylindrical, 1/4 achromatic waveplate is cylindrical, described 1/4 achromatic waveplate, the first quartz crystal, the second quartz crystal is placed in described stationary installation successively, described stationary installation comprises the first annulus post and the second annulus post that internal diameter is identical, described the first annulus post has internal thread, described the second annulus post has external thread, one end of one end of described the first annulus post and the second annulus post is connected together by internal thread and external thread rotary, the other end of described the first annulus post has the 3rd annulus post that an internal diameter is less than the first annulus column internal diameter, the other end of described the second annulus post has the 4th annulus post that an internal diameter is less than the second annulus column internal diameter.The utility model is convenient for changing and installs, and the incident ray polarized light at arbitrary orientation angle is had to good depolarization effect.
Description
Technical field
The utility model relates to a kind of depolarizer, refers in particular to a kind of Lyot depolarizer.
Background technology
In some optical system, linearly polarized light is unwelcome, and such as in reflecting spectrograph, polarization effect can affect detector sensitivity.Depolarizer is used for polarized light to change into nonpolarized light, and it is widely used in Polarization-Sensitive system and instrument.Common depolarization device can only be in narrow spectral range owing to being subject to the restriction at BEAM SQUINT angle, and this depolarization device can be for very wide spectral range, and BEAM SQUINT angle is controlled within the scope of an acceptable.But existing Lyot depolarizer depolarization weak effect, and be difficult for installing.
Summary of the invention
The technical problems to be solved in the utility model, is to provide a kind of Lyot depolarizer, solves existing Lyot depolarizer depolarization weak effect, and is difficult for the problem of installation.
The utility model is achieved in that
A kind of Lyot depolarizer, comprise stationary installation, the first quartz crystal, the second quartz crystal and 1/4 achromatic waveplate, wherein the first quartz crystal is cylindrical, the second quartz crystal is cylindrical, 1/4 achromatic waveplate is cylindrical, described 1/4 achromatic waveplate, the first quartz crystal, the second quartz crystal is placed in described stationary installation successively, described stationary installation comprises the first annulus post and the second annulus post that internal diameter is identical, described the first annulus post has internal thread, described the second annulus post has external thread, one end of one end of described the first annulus post and the second annulus post is connected together by internal thread and external thread rotary, the other end of described the first annulus post has the 3rd annulus post that an internal diameter is less than the first annulus column internal diameter, the other end of described the second annulus post has the 4th annulus post that an internal diameter is less than the second annulus column internal diameter.
The utility model has the advantage of: be convenient for changing and install, and the incident ray polarized light at arbitrary orientation angle is had and well moves back sheet effect.。
Accompanying drawing explanation
The utility model is further described with reference to the accompanying drawings in conjunction with the embodiments.
Fig. 1 is profile structural representation of the present utility model.
Embodiment
Refer to shown in Fig. 1, a kind of Lyot depolarizer, comprise stationary installation 1, the first quartz crystal 2, the second quartz crystal 3 and 1/4 achromatic waveplate 4, wherein the first quartz crystal 2 is cylindrical, the second quartz crystal 3 is cylindrical, 1/4 achromatic waveplate 4 is cylindrical, 1/4 achromatic waveplate 4, the first quartz crystal 2, the second quartz crystal 3 is placed in stationary installation 1 successively, stationary installation 1 comprises the first annulus post 10 and the second annulus post 11 that internal diameter is identical, the first annulus post 10 has internal thread 100, the second annulus post 11 has external thread 110, together with one end of the first annulus post 10 is screwed in external thread 110 by internal thread 10 with one end of the second annulus post 11, the other end of the first annulus post 10 has the 3rd annulus post 101 that an internal diameter is less than the first annulus post 10 internal diameters, the other end of the second annulus post 11 has the 4th annulus post 111 that an internal diameter is less than the second annulus post 11 internal diameters.The utility model in use, can, by the first annulus post 10 and the second annulus post 11 by mutually outwarding winding, be convenient for changing the quartz crystal in stationary installation 1.The setting of 1/4 achromatic waveplate in the utility model simultaneously, can make the incident ray polarized light at arbitrary orientation angle have good depolarization effect, solves the problem of existing depolarizer depolarization weak effect.
The above embodiment, it is better embodiment of the present utility model, be not to limit the utility model practical range, the equivalence of doing according to structure, feature and principle described in the utility model claim therefore all changes or modifies, and all should comprise in the utility model patent claim.
Claims (1)
1. a Lyot depolarizer, it is characterized in that: comprise stationary installation, the first quartz crystal, the second quartz crystal and 1/4 achromatic waveplate, wherein the first quartz crystal is cylindrical, the second quartz crystal is cylindrical, 1/4 achromatic waveplate is cylindrical, described 1/4 achromatic waveplate, the first quartz crystal, the second quartz crystal is placed in described stationary installation successively, described stationary installation comprises the first annulus post and the second annulus post that internal diameter is identical, described the first annulus post has internal thread, described the second annulus post has external thread, one end of one end of described the first annulus post and the second annulus post is connected together by internal thread and external thread rotary, the other end of described the first annulus post has the 3rd annulus post that an internal diameter is less than the first annulus column internal diameter, the other end of described the second annulus post has the 4th annulus post that an internal diameter is less than the second annulus column internal diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420467773.6U CN204028474U (en) | 2014-08-19 | 2014-08-19 | Lyot depolarizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420467773.6U CN204028474U (en) | 2014-08-19 | 2014-08-19 | Lyot depolarizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204028474U true CN204028474U (en) | 2014-12-17 |
Family
ID=52068314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420467773.6U Expired - Fee Related CN204028474U (en) | 2014-08-19 | 2014-08-19 | Lyot depolarizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204028474U (en) |
-
2014
- 2014-08-19 CN CN201420467773.6U patent/CN204028474U/en not_active Expired - Fee Related
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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 |
Granted publication date: 20141217 Termination date: 20160819 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |