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 betwee

Method used

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  • Catadioptric astronomical telescope and telescoping device
  • Catadioptric astronomical telescope and telescoping device
  • Catadioptric astronomical telescope and telescoping device

Examples

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Example Embodiment

[0024] The specific implementation of the present invention will be described below in conjunction with the drawings and embodiments:

[0025] It should be noted that the structure, ratio, size, etc. illustrated in the drawings attached to this specification are only used to match the content disclosed in the specification for the understanding and reading of those familiar with this technology, and are not intended to limit the implementation of the present invention. The limitation conditions, any structural modification, proportional relationship change or size adjustment, shall still fall within the scope of the technical content disclosed in the present invention without affecting the effects and objectives that can be achieved by the present invention In the range.

[0026] At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" cited in this specification are only for the convenience of description and are not used to limit the text. The sc...

Example Embodiment

[0027] Example 1

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

Example Embodiment

[0029] Example 2

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

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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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