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Catadioptric astronomical telescope and telescoping device

An astronomical telescope and catadioptric technology, which is applied in the field of astronomical telescopes, can solve the problems of large difference between the image quality at the edge of the telescope's field of view and the image quality at the center, relatively large distortion, and a small number of stars, so as to ensure assembly accuracy and imaging quality, Increase the transmittance and eliminate the effect of field curvature

Pending Publication Date: 2018-09-28
西安航光仪器厂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The object of the present invention is to overcome the deficiencies of the prior art above, and provide a catadioptric astronomical telescope and telescopic device, which overcomes the large difference between the image quality at the edge of the telescope's field of view and the image quality at the center, small field of view, and The number of ingested stars is less after matching and the relative distortion is large

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  • Catadioptric astronomical telescope and telescoping device
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specific Embodiment approach

[0025] It should be noted that the structures, proportions, sizes, etc. shown in the drawings attached to this specification are only used to match the content disclosed in the specification, for those who are familiar with this technology to understand and read, and are not used to limit the implementation of the present invention Any modification of the structure, change of the proportional relationship or adjustment of the size shall still fall within the scope of the technical content disclosed in the present invention without affecting the effect and purpose of the present invention. In the range.

[0026] At the same time, terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description and are not used to limit this specification. The practicable scope of the invention and the change or adjustment of its relative relationship shall also be regarded as the practicable scope of the present inventi...

Embodiment 1

[0028] Such as Figure 1~2 As shown, the present invention discloses a catadioptric astronomical telescope, which includes a lens barrel and a lens group, wherein the lens group is arranged in the inner cavity of the lens barrel, and the lens group includes a first front correction lens group 1, a second front correction lens Group 2, catadioptric lens group 3, rear correction lens group 4 and main reflection lens group 5, wherein the first front correction lens group 1, the second front correction lens group 2, catadioptric lens group 3, rear correction lens group 4 and The main reflective lens group 5 is sequentially arranged in the inner cavity of the lens barrel, and the central axis of the lens barrel is connected to the first front correction lens group 1, the second front correction lens group 2, the catadioptric lens group 3, the rear correction lens group 4 and the main lens group. The optical axes of the reflective lens group 5 are concentric.

Embodiment 2

[0030] Such as Figure 1~2 As shown, the present invention discloses a catadioptric astronomical telescope, which includes a lens barrel and a lens group, wherein the lens group is arranged in the inner cavity of the lens barrel, and the lens group includes a first front correction lens group 1, a second front correction lens Group 2, catadioptric lens group 3, rear correction lens group 4 and main reflection lens group 5, wherein the first front correction lens group 1, the second front correction lens group 2, catadioptric lens group 3, rear correction lens group 4 and The main reflective lens group 5 is sequentially arranged in the inner cavity of the lens barrel, and the central axis of the lens barrel is connected to the first front correction lens group 1, the second front correction lens group 2, the catadioptric lens group 3, the rear correction lens group 4 and the main lens group. The optical axes of the reflective lens group 5 are concentric. Because the lens and l...

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Abstract

The invention discloses a catadioptric astronomical telescope and a telescoping device. The catadioptric astronomical telescope comprises a lens cone and lens assemblies, wherein the lens assemblies are arranged in an inner cavity of the lens cone, the lens assemblies include a first front correcting lens assembly, a second front correcting lens assembly, a catadioptric lens assembly, a rear correcting lens assembly and a main reflecting lens assembly which are arranged in the inner cavity of the lens cone sequentially, and a central axis of the lens cone is concentric with optical axes of thefirst front correcting lens assembly, the second front correcting lens assembly, the catadioptric lens assembly, the rear correcting lens assembly and the main correcting lens assembly. The catadioptric astronomical telescope and the telescoping device have the advantages that by adding appropriate number of catadioptric lenses, chromatic aberration of the telescoping device is reduced maximally,and a telescope body of the telescope can be shortened effectively; by adopting two groups correcting lens assemblies in the front and back, paraxial aberrations including coma aberration, position chromatism and the like are eliminated effectively, and good qualities of focused images in broad-spectrum bands are guaranteed.

Description

technical field [0001] The invention belongs to the technical field of astronomical telescopes, in particular to a catadioptric astronomical telescope and a telescopic device. Background technique [0002] The traditional zenith instrument is a classic geodetic instrument used for the determination of astronomical latitude and longitude at ground points. With the development of measurement technology and means, people put forward the concept of digital zenith instrument. In view of the needs of my country's military development and infrastructure construction, the research and development The digital astrophotogrammetry system has become an effective way and an indispensable means for our leapfrog development in high technology. At present, the technology and algorithm of the sensor are relatively mature and stable, and the conditions for development are already available. The high-precision zenith instrument first needs a high-quality optical imaging system, and the quality ...

Claims

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Application Information

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IPC IPC(8): G02B23/02
CPCG02B23/02
Inventor 赵莹龚建刘涛常俊琴王伟峰雷鸣张哺育艾君芳
Owner 西安航光仪器厂
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