Schmidt Cassegrain Telescope system
A Schmidt and telescope technology, applied in telescopes, instruments, optics, etc., can solve the problem of system image quality reduction, achieve high imaging quality, compact structure, and shorten the length of the system
Pending Publication Date: 2019-11-08
HUAZHONG UNIV OF SCI & TECH
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[0005] Aiming at the defects of the prior art, the object of the present invention is to provide a Schmidt-Cassegrain telescope system, aiming to solve the existing Schmidt-Cassegrain telescope system due to the introduction of additional Chromatic aberration, the problem that causes the image quality of the system to decrease
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[0025] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0026] Such as figure 1 As shown, a Schmidt-Cassegrain telescope system provided by an embodiment of the present invention includes: a first Schmidt correction plate 1, a second Schmidt correction plate 2, a primary reflector 3 and a secondary reflector 4; The first Schmidt correction plate 1, the second Schmidt correction plate 2, the primary reflector 3 and the secondary reflector 4 have a common optical axis; the first Schmidt correction plate 1 is used to modulate the emitted light of the signal source ; The second Schmidt correction plate 2 is used for secondary modulation of the modulated em...
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The invention discloses a Schmidt Cassegrain Telescope system. The Schmidt Cassegrain Telescope system comprises a first Schmidt correcting plate, a second Schmidt correcting plate, a main reflector,and an auxiliary reflector. The first Schmidt correcting plate, the second Schmidt correcting plate, the main reflector, and the auxiliary reflector share an optical axis. The first Schmidt correctingplate is used for modulation of emitted light of a signal source. The second Schmidt correcting plate is used for the secondary modulation of the modulated emitted light to correct aberration causedby the first correcting plate. The main reflector is used to gather and reflect the emitted light after the secondary modulation. The auxiliary reflector is used to receive the reflected light of themain reflector, and is used to converge the light on the focus for imaging. The invention is advantageous in that based on the Schmidt Cassegrain Telescope system, the double-Schmidt correcting platestructure is adopted to correct the aberration problem of the common Schmidt Cassegrain system, and therefore the imaging system having good image quality, large visual field, large aperture, and compact structure is realized.
Description
technical field [0001] The invention belongs to the field of optical system and device design, and more specifically relates to a Schmidt-Cassegrain telescope system. Background technique [0002] The optical system with large field of view and large aperture is widely used in the detection system of the optical band. The large field of view can enable the detector to detect a larger range at the same time. The large aperture means that the ratio of focal length to aperture is small, which can effectively improve the system. The light transmission efficiency can improve the brightness of the system to detect the target imaging, so as to reduce the exposure time of the optical system and improve the response rate of the system. However, a large field of view will cause the image quality at the edge of the system to drop rapidly compared to the center of the system, and a large aperture will affect the overall image quality of the system, especially magnifying the chromatic ab...
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IPC IPC(8): G02B23/02G02B23/06
CPCG02B23/02G02B23/06
Inventor 马冬林谈昊
Owner HUAZHONG UNIV OF SCI & TECH