CN203561789U - Collimator - Google Patents
Collimator Download PDFInfo
- Publication number
- CN203561789U CN203561789U CN201320620523.7U CN201320620523U CN203561789U CN 203561789 U CN203561789 U CN 203561789U CN 201320620523 U CN201320620523 U CN 201320620523U CN 203561789 U CN203561789 U CN 203561789U
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- China
- Prior art keywords
- housing
- mirror
- web member
- parallel light
- light
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- Expired - Lifetime
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Abstract
The utility model relates to a collimator. The collimator comprises a housing extending along the front and rear direction in length. A light through hole is arranged at the front end of the housing. A planar mirror, whose mirror surface faces to the back, is arranged in the housing and behind the light through hole. A concave mirror is arranged in the housing and on the reflected light path behind the planar mirror. The concave mirror is provided with a concave mirror surface facing to the front and used for reflecting the light reflected by the planar mirror to the light through hole, and the light reflected to the light through hole is parallel due to the reflection of the concave mirror surface. Focuses of the planar mirror and the concave mirror are located at the periphery of the reflected light path of the concave mirror. The collimator provided by the utility model is capable of emitting parallel light and is free from barriers.
Description
Technical field
The utility model relates to optical instrument, relates in particular to a kind of parallel light tube.
Background technology
The use of parallel light tube is very extensive, and one of them effect is that the infrared light for the infrared origin of black matrix is sent converts to for projecting the directional light on target seeker, for product test provides the infrared origin of simulation.Parallel light tube focal length is in the past limited, and clear aperture is less, and along with producing the needs of debugging and testing experiment, in the urgent need to the parallel light tube of long-focus.Existing long-focus collimator as disclosed in Chinese patent literature CN2398611Y " long-focus collimator ", this parallel light tube comprises the housing that length is extended along fore-and-aft direction, the front end of housing is provided with light hole, the rear end of housing is provided with minute surface forward and for the spherical reflector to light hole reflection directional light, in the reflected light path of spherical reflector, be provided with minute surface plane mirror backwards, wherein the focus of spherical reflector is arranged in the reflected light path of spherical reflector, is provided with the light inlet corresponding with plane mirror position on the housing wall of housing.During use, the light of being injected by light inlet first reflexes on spherical reflector through plane mirror, then through spherical reflector, reflects to form directional light, finally by logical light mouth, penetrates.By the setting of plane mirror, make the focal length of parallel light tube can be greater than the length of parallel light tube, effectively increased the focal length of parallel light tube, but still there is following problem in existing this long-focus collimator: because the focus of spherical reflector is arranged in the reflected light path of spherical reflector, so can reflect directional light in order to realize spherical reflector, plane mirror must be arranged in the reflected light path of spherical reflector, plane mirror can block the directional light that spherical calotte catoptron reflects, affect the quality of the final directional light penetrating of parallel light tube.
Summary of the invention
It is a kind of to penetrating the explicit parallel light tube of directional light that the purpose of this utility model is to provide.
In order to address the above problem, the technical solution of the utility model is:
A kind of parallel light tube, comprise the housing that length is extended along fore-and-aft direction, the front end of housing is provided with light hole, in housing, in the rear of light hole, be provided with minute surface plane mirror backwards, in the reflected light path at the interior rear in described plane mirror of housing, be provided with concave mirror, concave mirror has towards forward and be reflected into the concave reflection minute surface of the directional light of directive light hole for the light that described plane mirror is reflected back, and the focus of described plane mirror and described concave mirror is all positioned at the periphery of the reflected light path of described concave mirror.
Described concave mirror is a parabolic mirror, described parabolic mirror is arranged in housing by the first microscope base, the first microscope base comprises housing the first web member being fixedly connected with described housing and the paraboloidal mirror web member being fixedly connected with parabolic mirror, between paraboloidal mirror web member and housing the first web member, be provided with the first disconnecting prevention structure of realizing its both anticreep on fore-and-aft direction, between paraboloidal mirror web member and housing the first web member, be also provided with at least two the first set screw that realize parabolic mirror reflects angular setting.
Described paraboloidal mirror web member consists of an annular installing ring, and described parabolic mirror is fixed on by parabolic reflector microscope base in the endoporus of described annular installing ring, and each first set screw is arranged around the circumferential interval of annular installing ring.
Described plane mirror is arranged in housing by the second microscope base, the second microscope base comprises housing the second web member being fixedly connected with housing and the level crossing web member being fixedly connected with plane mirror, between level crossing web member and housing the second web member, be provided with the second disconnecting prevention structure of realizing its both anticreep on fore-and-aft direction, between level crossing web member and housing the second web member, be also provided with at least two and realize the second set screw that plane mirror reflection angle is adjusted.
Described concave mirror is a paraboloidal mirror.
Described housing comprises sleeve pipe and is arranged at front end end cover and the rear end cap at the forward and backward two ends of sleeve pipe, and described light hole is opened on described front end end cover.
The dismantled and assembled over cap of being furnished with for light hole described in shutoff on described front end end cover.
On described over cap rear side, be provided with for placing the drying agent displacement structure of drying agent.
Described sleeve pipe is rectangle structure, sleeve pipe comprises base and mounts cover the U-shaped cover on base, the both sides of base Width arrange and are provided with fixed block, are provided with threaded hole on fixed block, are provided with the screw perforation that for lock-screw install corresponding with each threaded hole on U-shaped cover.
On described base, be provided with recess hand-held while carrying for operating personnel.
The beneficial effects of the utility model are: the light being reflected by plane mirror is reflected into directional light through concave mirror, and finally by light hole, penetrated, the focus of concave mirror and plane mirror be the periphery in concave mirror reflected light path all, therefore plane mirror can not block the directional light that parabolic mirror reflects goes out, thereby has guaranteed the quality of the directional light that parallel light tube penetrates.
Accompanying drawing explanation
Fig. 1 is the structural representation of an embodiment of the present utility model;
Fig. 2 is the structural representation of Fig. 1 when removing U-shaped cover and over cap;
Fig. 3 is the light path principle of reflection figure of Fig. 1.
Embodiment
A kind of embodiment of parallel light tube is as shown in Fig. 1 ~ 3: comprise the housing that length is extended along fore-and-aft direction; housing comprises rectangular sleeve pipe and is arranged at front end end cover 13 and the rear end cap 3 at the forward and backward two ends of sleeve pipe; on front end end cover, offer light hole 14; the front end of front end end cover, by the removable over cap 2 being installed with for shutoff light hole of helical structure, is provided with on over cap rear side for placing the drying agent displacement structure of drying agent.Sleeve pipe comprises base 9 and mounts cover the U-shaped cover 1 on base, the both sides of base Width arrange and are provided with fixed block 8, on fixed block, be provided with threaded hole, on U-shaped cover, be provided with the screw perforation that for lock-screw install corresponding with each threaded hole, side at forward and backward end cap is also correspondingly provided with threaded hole, is provided with recess 9-1 hand-held while carrying for operating personnel on base.The rear end of base is provided with parabolic mirror 6 by the first microscope base, parabolic mirror has towards forward, and for the parabolic reflector minute surface to light hole reflection directional light, the first microscope base comprises housing the first web member 7 being fixedly connected with housing and the paraboloidal mirror web member being fixedly connected with parabolic mirror, housing the first web member is fixed on base by screw, paraboloidal mirror web member consists of an annular installing ring 4, parabolic mirror is fixed in the endoporus of annular installing ring by parabolic reflector microscope base, between annular installing ring and housing the first web member, be provided with the first disconnecting prevention structure of realizing its both anticreep on fore-and-aft direction, the first disconnecting prevention structure is the first anti-loosing screw being threaded onto between annular installing ring and housing the first web member, annular installing ring is positioned at the front side of housing the first web member, between annular installing ring and housing the first web member, be also provided with three the first set screw that realize parabolic mirror reflects angular setting, each first set screw is arranged around the circumferential interval of annular installing ring, each first set screw respectively by rear to front spinning on housing the first web member, each front end end of the first set screw and the rear end pushing tow of annular installing ring coordinate.Minute surface plane mirror 10 is backwards set in housing between parabolic mirror and light hole, plane mirror is positioned at the periphery of the reflected light path of parabolic mirror, plane mirror is arranged in housing by the second microscope base, the second microscope base comprises that housing the second web member 12 being fixedly connected with base is picture frame with the level crossing web member 11(being fixedly connected with plane mirror), level crossing web member is positioned at the rear side of housing the second web member, plane mirror is fixed in the groove of level crossing web member, the second housing connection is fixedly connected with base by screw, between level crossing web member and housing the second web member, be provided with the second disconnecting prevention structure of realizing its both anticreep on fore-and-aft direction, the second disconnecting prevention structure is the second anti-loosing screw being threaded onto between level crossing web member and housing the second web member, between level crossing web member and housing the second web member, be also provided with a plurality of the second set screw that plane mirror reflection angle is adjusted that realize, each the second set screw spinning is from front to back on housing the second web member, the rear end of the second set screw coordinates with level crossing web member pushing tow.
During use, can base be fixed on worktable by bolt, light generating apparatus 15 produces infrared light, infrared light is through the aperture on apertured plate, forming pointolite outwards disperses and the incidence hole directive planar transmit mirror on housing, plane mirror is by light reflection to parabolic mirror, and parabolic mirror becomes parallel beam by the light reflection of incident, finally by light hole, is penetrated.Can to the reflection angle of parabolic mirror, finely tune by the first set screw, by the second set screw, the reflection angle of plane mirror be finely tuned; When not working, can by over cap spinning on front end end cover with shutoff light hole, can reduce entering of dust, can also on the drying agent displacement structure of over cap inner side, place drying agent, drying agent can absorb the moisture in parallel light tube, guarantees inner dry.For avoiding producing unnecessary reflection in fiberoptic cable system, spray black antiglossing pigment on the inside surface of housing and first and second microscope base, reduces the reflection of light.
In other embodiment of the present utility model: first and second microscope base can also not established, now parabolic mirror and plane mirror can be directly fixed on housing; The first set screw also can spinning on annular installing ring, now the rear end of the first set screw coordinates with housing the first web member front end pushing tow; The second set screw also can spinning on level crossing web member, now the second set screw coordinates with housing the second web member pushing tow; The first disconnecting prevention structure can also be to annular installing ring and housing the first web member, to apply the first elastic component of relative direction acting force; The second disconnecting prevention structure can also be to level crossing web member and housing the second web member, to apply the second elastic component of relative direction acting force; Certainly, when not needing the reflection angle of parabolic mirror and plane mirror to adjust, each disconnecting prevention structure and set screw all can not established, and now annular installing ring and housing the first web member can be wholely set, and housing the second web member and level crossing web member can be wholely set; The number of the first set screw can also be two, four or other number; The number of the second set screw can be two, three or other number; The shape of sleeve pipe can also be circular; Paraboloidal mirror web member can also be a slab structure, now parabolic mirror can be adhesively fixed on paraboloidal mirror web member; Over cap can also be assigned on front end end cover by screw releasable connection structure as dismountable; Paraboloidal mirror can also be replaced by other concave mirrors such as spherical mirrors.
Claims (10)
1. a parallel light tube, comprise the housing that length is extended along fore-and-aft direction, the front end of housing is provided with light hole, in housing, in the rear of light hole, be provided with minute surface plane mirror backwards, in the reflected light path at the interior rear in described plane mirror of housing, be provided with concave mirror, concave mirror has towards forward, and for the light that described plane mirror is reflected back, be reflected into the concave reflection minute surface of the directional light of directive light hole, it is characterized in that: the focus of described plane mirror and described concave mirror is all positioned at the periphery of the reflected light path of described concave mirror.
2. parallel light tube according to claim 1, it is characterized in that: described concave mirror is a parabolic mirror, described parabolic mirror is arranged in housing by the first microscope base, the first microscope base comprises housing the first web member being fixedly connected with described housing and the paraboloidal mirror web member being fixedly connected with parabolic mirror, between paraboloidal mirror web member and housing the first web member, be provided with the first disconnecting prevention structure of realizing its both anticreep on fore-and-aft direction, between paraboloidal mirror web member and housing the first web member, be also provided with at least two the first set screw that realize parabolic mirror reflects angular setting.
3. parallel light tube according to claim 2, it is characterized in that: described paraboloidal mirror web member consists of an annular installing ring, described parabolic mirror is fixed on by parabolic reflector microscope base in the endoporus of described annular installing ring, and each first set screw is arranged around the circumferential interval of annular installing ring.
4. parallel light tube according to claim 1, it is characterized in that: described plane mirror is arranged in housing by the second microscope base, the second microscope base comprises housing the second web member being fixedly connected with housing and the level crossing web member being fixedly connected with plane mirror, between level crossing web member and housing the second web member, be provided with the second disconnecting prevention structure of realizing its both anticreep on fore-and-aft direction, between level crossing web member and housing the second web member, be also provided with at least two and realize the second set screw that plane mirror reflection angle is adjusted.
5. parallel light tube according to claim 1, is characterized in that: described concave mirror is a paraboloidal mirror.
6. according to the parallel light tube described in claim 1 ~ 5 any one, it is characterized in that: described housing comprises sleeve pipe and be arranged at front end end cover and the rear end cap at the forward and backward two ends of sleeve pipe, described light hole is opened on described front end end cover.
7. parallel light tube according to claim 6, is characterized in that: the dismantled and assembled over cap of being furnished with for light hole described in shutoff on described front end end cover.
8. parallel light tube according to claim 7, is characterized in that: on described over cap rear side, be provided with for placing the drying agent displacement structure of drying agent.
9. parallel light tube according to claim 6, it is characterized in that: described sleeve pipe is rectangle structure, sleeve pipe comprises base and mounts cover the U-shaped cover on base, the both sides of base Width arrange and are provided with fixed block, on fixed block, be provided with threaded hole, on U-shaped cover, be provided with the screw perforation that for lock-screw install corresponding with each threaded hole.
10. parallel light tube according to claim 9, is characterized in that: on described base, be provided with recess hand-held while carrying for operating personnel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320620523.7U CN203561789U (en) | 2013-10-09 | 2013-10-09 | Collimator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320620523.7U CN203561789U (en) | 2013-10-09 | 2013-10-09 | Collimator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203561789U true CN203561789U (en) | 2014-04-23 |
Family
ID=50511501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320620523.7U Expired - Lifetime CN203561789U (en) | 2013-10-09 | 2013-10-09 | Collimator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203561789U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106961589A (en) * | 2017-05-19 | 2017-07-18 | 深圳市桔子物联科技有限公司 | The implementation method and device of a kind of electronic peephole viewer |
| CN112556997A (en) * | 2020-11-30 | 2021-03-26 | 中国科学院长春光学精密机械与物理研究所 | Large-aperture optical system detection method, device, equipment and storage medium |
-
2013
- 2013-10-09 CN CN201320620523.7U patent/CN203561789U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106961589A (en) * | 2017-05-19 | 2017-07-18 | 深圳市桔子物联科技有限公司 | The implementation method and device of a kind of electronic peephole viewer |
| CN112556997A (en) * | 2020-11-30 | 2021-03-26 | 中国科学院长春光学精密机械与物理研究所 | Large-aperture optical system detection method, device, equipment and storage medium |
| CN112556997B (en) * | 2020-11-30 | 2021-10-08 | 中国科学院长春光学精密机械与物理研究所 | Large-aperture optical system detection method, device, equipment and storage medium |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |