CN205003357U - Absorb extinction chamber of useless light beam - Google Patents
Absorb extinction chamber of useless light beam Download PDFInfo
- Publication number
- CN205003357U CN205003357U CN201520682358.7U CN201520682358U CN205003357U CN 205003357 U CN205003357 U CN 205003357U CN 201520682358 U CN201520682358 U CN 201520682358U CN 205003357 U CN205003357 U CN 205003357U
- Authority
- CN
- China
- Prior art keywords
- cavity
- glass
- dull polish
- light beam
- ground glass
- 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.)
- Active
Links
Landscapes
- Optical Elements Other Than Lenses (AREA)
Abstract
The utility model discloses an absorb extinction chamber of useless light beam, including cavity, the planar printing opacity glass of a slice and two planar dull polish glass, the cavity is the cuboid, and the inner wall of cavity is the black mat surface, and inside vertical upward the opening of cavity has three slots, and the louvre has all been opened to the top cap and the bottom surface of cavity, and preceding the opening of cavity has an entrance pupil, ground glass is the single face dull polish, printing opacity glass and two dull polish glass place in cavity three inside slots, be printing opacity glass, dull polish glass, dull polish glass in proper order in the past backward, and the frosting that printing opacity glass and two dull polish glass parallels of each other, the contained angle of the side of printing opacity glass and cavity are 45, two dull polish glass all backwards. The utility model discloses simple structure, the useless light beam of complete absorption avoids stray light to disturb laser system basically.
Description
Technical field
The utility model relates to laser application technique field, is specifically related to a kind of extinction chamber absorbing useless light beam.
Background technology
In laser and laser application system, when the oblique incidence of needs light beam enters an optical interface, have transmission and reflection light, when system does not need to utilize reflected light, reflected light of usually leaving freely transmits, and forms parasitic light in systems in which.Along with the development of laser and laser application system, the light path of system becomes increasingly complex, and the optical element of use gets more and more, and exists without using up, the situation of parasitic light also gets more and more in system.Such as, the report [CN104614080A] of the maximum image planes differential thermal calculation method that infrared optical system causes because of stray radiation is had.Useless light beam in system also likely forms undesired signal, likely the performance of influential system.Such as, shown in accompanying drawing in CN104749785A, incide the blue light of prism 1, reflected light on the plane of incidence of prism 1, just likely enter into the laser generator of green glow, through multiple reflections, also may enter into the laser generator of ruddiness, so just may affect the vibration of green glow and red laser generator.Such as, in the accompanying drawing of CN104359809A, the reflected light of light beam generation when first prism surface is incident of grating 4 outgoing, in internal system after the reflection of chamber wall, likely enters plus lens, forms undesired signal.
Summary of the invention
In order to solve above-mentioned technical matters, the utility model provides the extinction chamber that a kind of structure simply absorbs useless light beam, substantially absorbs useless light beam completely, avoids interference of stray light laser system.
The scheme that the utility model solves the problems of the technologies described above is as follows:
Absorb the extinction chamber of useless light beam, comprise cavity, the transparent glass of a plate plane and the ground glass of two plate planes;
Described cavity is rectangular parallelepiped, and the inwall of cavity is black rough face, and have three road slots on inside cavity is longitudinal, top cover and the bottom surface of cavity all have louvre, have an entrance pupil before cavity;
Described ground glass is one side frosted;
Described transparent glass and two panels ground glass are placed in three road slots of inside cavity, be followed successively by transparent glass, ground glass, ground glass from front to back, transparent glass and two panels ground glass parallel to each other, the angle of the side of transparent glass and cavity is 45 °, and the frosting of two panels ground glass all backwards.
The bottom surface of described cavity is provided with two L shape pin for being connected with the external world.
The utility model has following advantage relative to prior art:
1, this extinction chamber can be positioned in various optical system, and make useless reflected light or refract light impinge perpendicularly on entrance pupil before cavity, useless light beam enters in extinction chamber, is substantially absorbed completely, avoids interference of stray light laser system.
2, the utility model simplicity of design, cost of manufacture is low.
Accompanying drawing explanation
Fig. 1 is the front view in the extinction chamber of the useless light beam of absorption of the present utility model.
Fig. 2 is the vertical view (hiding top cover) in extinction chamber.
Fig. 3 is the vertical view of top cover.
Fig. 4 is the index path in extinction chamber.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.
The extinction chamber of the useless light beam of absorption as shown in Figure 1-Figure 3, comprises the transparent glass 2 of cavity 1, plate plane and the ground glass 3 of two plate planes;
Cavity 1 is rectangular parallelepiped, and the inwall of cavity 1 is black rough face, and have three road slots 4 on cavity 1 inside is longitudinal, the top cover 5 of cavity 1 and bottom surface all have louvre 6, have an entrance pupil 7 before cavity 1;
Ground glass 3 is one side frosted;
Transparent glass 2 and two panels ground glass 3 are placed in three road slots 4 of cavity 1 inside, be followed successively by transparent glass 2, ground glass 3, ground glass 3 from front to back, transparent glass 2 and two panels ground glass 3 parallel to each other, transparent glass 2 is 45 ° with the angle of the side of cavity 1, and the frosting 9 of two panels ground glass 3 all backwards.
The bottom surface of cavity 1 is provided with two L shape pin 8 for being connected with the external world.
Below the extinction effect in this extinction chamber is tested:
The thickness of 3 sheet glass is 5mm, and spacing is 10mm, and an incident beam power is the Bladder stone of 2.0W, after transparent glass, transmitted optical power is 1.8W, after first block of ground glass, transmitted optical power only remains 0.3W, then after second block of ground glass, essentially no transmitted light.
The light path trend of Bladder stone is as shown in Figure 4, specific as follows:
(1) extinction chamber is placed on without in the light path of using up, allows the plane orthogonal at its entrance pupil place use up in nothing.Now, without using up and inciding the A point on transparent glass sheet with 45° angle.
(2) arrive A point after be divided into two-way: 1., very little a part of light reflected, and the internal chamber wall then impinging perpendicularly on extinction chamber is absorbed; 2., another part light through superrefraction, wherein a very little part by the glass material of process absorb, remainder arrives B point;
(3) from the light of B point injection, incide ground glass surface C point, be divided into two-way: 1., very little a part of light is reflected to and reaches E point, is again reflected to and reaches F point, again reflected, the internal chamber wall then impinging perpendicularly on extinction chamber is absorbed; 2., another part light through superrefraction, wherein a very little part by the glass material of process absorb, remainder arrives D point, and scattering occurs, finally by the glass material of process absorb, absorbed by chamber wall.
(4) the very faint light beam transmitted from first piece of ground glass sheet D point incides second piece of ground glass sheet, finally all can by process glass material absorb, absorbed by chamber wall.
(5) at the scattered light that the frosting of two panels ground glass produces, again transparent glass can be entered, and the light of entrance pupil outgoing from extinction chamber, very little.
Above-mentioned is the utility model preferably embodiment; but embodiment of the present utility model is not by the restriction of foregoing; change, the modification done under other any does not deviate from Spirit Essence of the present utility model and principle, substitute, combine, simplify; all should be the substitute mode of equivalence, be included within protection domain of the present utility model.
Claims (2)
1. absorb the extinction chamber of useless light beam, it is characterized in that: comprise cavity, the transparent glass of a plate plane and the ground glass of two plate planes;
Described cavity is rectangular parallelepiped, and the inwall of cavity is black rough face, and have three road slots on inside cavity is longitudinal, top cover and the bottom surface of cavity all have louvre, have an entrance pupil before cavity;
Described ground glass is one side frosted;
Described transparent glass and two panels ground glass are placed in three road slots of inside cavity, be followed successively by transparent glass, ground glass, ground glass from front to back, transparent glass and two panels ground glass parallel to each other, the angle of the side of transparent glass and cavity is 45 °, and the frosting of two panels ground glass all backwards.
2. the extinction chamber of the useless light beam of absorption according to claim 1, is characterized in that: the bottom surface of described cavity is provided with two L shape pin for being connected with the external world.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520682358.7U CN205003357U (en) | 2015-09-02 | 2015-09-02 | Absorb extinction chamber of useless light beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520682358.7U CN205003357U (en) | 2015-09-02 | 2015-09-02 | Absorb extinction chamber of useless light beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205003357U true CN205003357U (en) | 2016-01-27 |
Family
ID=55160237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520682358.7U Active CN205003357U (en) | 2015-09-02 | 2015-09-02 | Absorb extinction chamber of useless light beam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205003357U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109324360A (en) * | 2018-11-29 | 2019-02-12 | 中国科学院上海光学精密机械研究所 | Laser beam collector |
| CN109541801A (en) * | 2018-12-06 | 2019-03-29 | 中国工程物理研究院激光聚变研究中心 | A kind of stray light managing and control system and method for high power-terminal optical system |
-
2015
- 2015-09-02 CN CN201520682358.7U patent/CN205003357U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109324360A (en) * | 2018-11-29 | 2019-02-12 | 中国科学院上海光学精密机械研究所 | Laser beam collector |
| CN109541801A (en) * | 2018-12-06 | 2019-03-29 | 中国工程物理研究院激光聚变研究中心 | A kind of stray light managing and control system and method for high power-terminal optical system |
| CN109541801B (en) * | 2018-12-06 | 2021-04-13 | 中国工程物理研究院激光聚变研究中心 | Stray light pipe control system and method for high-power terminal optical system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103941398B (en) | Through mode glasses display | |
| CN206115116U (en) | High definition imaging system of double -colored light simple lens | |
| CN109977742A (en) | Optical finger print sensor | |
| CN205120285U (en) | Toughened glass surface stress measuring apparatu | |
| CN205003357U (en) | Absorb extinction chamber of useless light beam | |
| CN205941958U (en) | Displacement prism subassembly | |
| CN207133475U (en) | Optical communication module | |
| CN203337990U (en) | Directional backlight 3D imaging screen and naked-eye 3D projection system | |
| CN105333980A (en) | Tempered glass surface stress measuring instrument | |
| CN209055730U (en) | A kind of camera module | |
| CN203708255U (en) | Parallel optical path online monitoring device | |
| CN101408680A (en) | Far-field monitoring device of four-pass amplification system and collimation method thereof | |
| CN205720851U (en) | A kind of refrigeration mode two-waveband infrared optical system | |
| CN108168702B (en) | Full-aperture back scattered light measurement system based on scattering plate scattering sampling | |
| CN207851841U (en) | Optical fingerprint identification system | |
| CN110807374A (en) | Liquid crystal display panel | |
| CN206515546U (en) | A kind of lens set applied to Train-borne recorder camera | |
| CN203404725U (en) | Vehicle tail portion signal lamplight device | |
| CN102662206B (en) | Angle reflector and angle reflector array | |
| CN105929531A (en) | Laser corner reflector far field diffracted intensity data simulation method | |
| US11644609B2 (en) | Light guide plate and transparent illumination system utilizing the same | |
| CN205506680U (en) | Thermal -insulated membrane reflectivity of solar energy and transmission rate tester | |
| CN205786353U (en) | A kind of transmittance meter based on rotating filtering sheet monochromator | |
| CN202177414U (en) | Fiber-optical communication gas meter | |
| CN204789422U (en) | Thermal -insulated performance detection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |