CN101750725A - Reflective optical system for collimator tube - Google Patents
Reflective optical system for collimator tube Download PDFInfo
- Publication number
- CN101750725A CN101750725A CN200810188556A CN200810188556A CN101750725A CN 101750725 A CN101750725 A CN 101750725A CN 200810188556 A CN200810188556 A CN 200810188556A CN 200810188556 A CN200810188556 A CN 200810188556A CN 101750725 A CN101750725 A CN 101750725A
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- China
- Prior art keywords
- catoptron
- reflecting mirror
- parallel light
- mirror
- light tube
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- 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.)
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Abstract
The invention relates to a reflective optical system for a collimator tube, which comprises a primary reflecting mirror, a second reflecting mirror, a third reflecting mirror and a fourth reflecting mirror. The second reflecting mirror is arranged on the reflected light path of the first reflecting mirror; the third reflecting mirror is arranged on the reflected light path of the second reflecting mirror; and the fourth reflecting mirror is arranged on the reflected light path of the third reflecting mirror. The invention provides the light paths which can shorten the system and the collimator tube with the long focal length but no shielding, and the difficulty in processing each reflecting mirror of the collimator tube is low.
Description
Technical field
The present invention relates to field of optical systems, relate in particular to a kind of reflective optics of blocking parallel light tube that is used to not have.
Background technology
Parallel light tube is the important tool that optical instrument is adjusted in the dress school, also is the important component part in the optics metering equipment, the graticule that adapted is different, together with the micrometer eyepiece head, or microscopic system, then can measure the focal length of high resolving power camera, image quality technical indicators such as resolution.Equipment such as adapted sun simulating light source, monochromator, moving target generator can be applied to detection, the optical system feature measurement of visible light camera imaging quality and survey in the characteristic staking-out work of receiving trap.
The spectral range broadness that reflective parallel light tube covers, to infrared, clear aperture is done greatlyyer easily from ultraviolet, therefore adopts reflective optics usually for wide-aperture parallel light tube.Common large aperture long-focus parallel light tube adopts coaxial optical system, there is central obscuration in system, make to there being central obscuration, and central obscuration is not comprehensive less than the detection of the camera of the central obscuration of parallel light tube, and adopt longer from two mirror system length of axle, and two catoptrons are that the primary and secondary mirror is aspheric mirror, and especially principal reflection mirror is the aspheric mirror from axle, and processing is difficulty comparatively.
Summary of the invention
The present invention is for solving the technical matters that exists in the background technology, shortens the light path of system and the less long-focus of difficulty of processing of each catoptron does not have the parallel light tube of blocking and provide a kind of.
Technical solution of the present invention is: the present invention is a kind of reflective optics that is used for parallel light tube, and its special character is: described reflective optics comprises principal reflection mirror, second catoptron, the 3rd catoptron, the 4th catoptron; Second catoptron is arranged on the reflected light path of principal reflection mirror; The 3rd catoptron is arranged on the reflected light path of second catoptron; The 4th catoptron is arranged on the reflected light path of the 3rd catoptron.
Above-mentioned principal reflection mirror is rotational symmetric concave ellipsoidal surface catoptron.
Above-mentioned second catoptron is protruding spherical reflector.
Above-mentioned the 3rd catoptron is a concave spherical mirror.
Above-mentioned the 4th catoptron is a plane mirror.
Advantage of the present invention is:
1, can shorten the light path of system.The reflective optics that is used for parallel light tube provided by the present invention adopts four mirror systems, the compact conformation of system, parallel light tube to 30 meters focal lengths, with respect to two mirror systems in the background technology, the length of system can shorten one times, in 8 meters, and in the desired visual field of parallel light tube, system functional, the design wavefront difference also is better than two mirror systems in 0.03 wavelength.
2, the difficulty of processing of each catoptron is less.Principal reflection mirror of the present invention is rotational symmetric concave ellipsoidal surface mirror, and second catoptron, the 3rd catoptron are spherical reflector, and the 4th catoptron is a plane mirror, and for two mirror systems needed off-centre, the difficulty of processing of system greatly reduced.
Description of drawings
Fig. 1 is a system light path synoptic diagram of the present invention.
Embodiment
Referring to Fig. 1, the reflective optics that is used for parallel light tube of the present invention has four catoptrons, and wherein principal reflection mirror 1 is the concave ellipsoidal surface catoptron, and second catoptron 2 is protruding spherical reflector, the 3rd catoptron 3 is a concave spherical mirror, and the 4th catoptron 4 is a plane mirror.Second two-mirror 2 is arranged on the reflected light path of principal reflection mirror 1; The 3rd catoptron 3 is arranged on the reflected light path of second catoptron 2; The 4th catoptron 4 is arranged on the reflected light path of the 3rd catoptron 3.
The total system lateral length is in 8 meters, and longitudinal length is in 2 meters.And system can satisfy request for utilization in 0.1 ° * 0.1 ° big visual field.Focusing is longer than 10 meters, and the aperture of system is greater than 500mm, and the parallel light tube of the no central obscuration of requirement, especially at the parallel light tube of ultra-large aperture, overlength focal length, adopts reflective optics form advantage of the present invention more obvious.
Claims (5)
1. reflective optics that is used for parallel light tube, it is characterized in that: described reflective optics comprises principal reflection mirror, second catoptron, the 3rd catoptron, the 4th catoptron; Described second catoptron is arranged on the reflected light path of principal reflection mirror; Described the 3rd catoptron is arranged on the reflected light path of second catoptron; Described the 4th catoptron is arranged on the reflected light path of the 3rd catoptron.
2. the reflective optics that is used for parallel light tube according to claim 1 is characterized in that: described principal reflection mirror is rotational symmetric concave ellipsoidal surface catoptron.
3. the reflective optics that is used for parallel light tube according to claim 1 is characterized in that: described second catoptron is protruding spherical reflector.
4. the reflective optics that is used for parallel light tube according to claim 1 is characterized in that: described the 3rd catoptron is a concave spherical mirror.
5. the reflective optics that is used for parallel light tube according to claim 1 is characterized in that: described the 4th catoptron is a plane mirror.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810188556A CN101750725A (en) | 2008-12-17 | 2008-12-17 | Reflective optical system for collimator tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810188556A CN101750725A (en) | 2008-12-17 | 2008-12-17 | Reflective optical system for collimator tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101750725A true CN101750725A (en) | 2010-06-23 |
Family
ID=42477934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810188556A Pending CN101750725A (en) | 2008-12-17 | 2008-12-17 | Reflective optical system for collimator tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101750725A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102087407A (en) * | 2010-12-30 | 2011-06-08 | 中国科学院长春光学精密机械与物理研究所 | Off-axis total reflection optical system with huge field of view |
| CN102486404A (en) * | 2010-12-06 | 2012-06-06 | 中国科学院西安光学精密机械研究所 | Ultraviolet low-light stellar magnitude simulation and stellar magnitude calibration system |
| CN110161717A (en) * | 2019-04-25 | 2019-08-23 | 中国科学院西安光学精密机械研究所 | A kind of nothing blocks global face reflected parallel light-pipe optics system |
-
2008
- 2008-12-17 CN CN200810188556A patent/CN101750725A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102486404A (en) * | 2010-12-06 | 2012-06-06 | 中国科学院西安光学精密机械研究所 | Ultraviolet low-light stellar magnitude simulation and stellar magnitude calibration system |
| CN102087407A (en) * | 2010-12-30 | 2011-06-08 | 中国科学院长春光学精密机械与物理研究所 | Off-axis total reflection optical system with huge field of view |
| CN102087407B (en) * | 2010-12-30 | 2012-12-12 | 中国科学院长春光学精密机械与物理研究所 | Off-axis total reflection optical system with huge field of view |
| CN110161717A (en) * | 2019-04-25 | 2019-08-23 | 中国科学院西安光学精密机械研究所 | A kind of nothing blocks global face reflected parallel light-pipe optics system |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20100623 |