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A dual-channel optical path switching device suitable for day and night telescopes

A technology of optical path switching and telescope, applied in the directions of telescopes, optics, optical components, etc., to achieve accurate linear motion, avoid blocking light, and respond quickly.

Active Publication Date: 2019-10-01
NANJING INST OF ASTRONOMICAL OPTICS & TECH NAT ASTRONOMICAL OBSE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at solving and realizing the technical problem of switching between the reflective light barrier and the reflector support and the two sets of optical paths without causing mutual blocking of light, the present invention provides a dual-channel optical path switching device suitable for day and night telescopes. Realize the switching between two different observation modes in a limited space

Method used

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  • A dual-channel optical path switching device suitable for day and night telescopes
  • A dual-channel optical path switching device suitable for day and night telescopes
  • A dual-channel optical path switching device suitable for day and night telescopes

Examples

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Embodiment 1

[0032] See attached figure 1 , the coordinate system in the figure represents: X represents the horizontal optical axis, and Y represents the main optical axis. The device in this embodiment is composed of an outer support blade 4 , a transition support box 1 and an inner support device, and the inner support device is further divided into two parts: a reflective barrier assembly 2 and a reflector assembly 3 . The shape and size of the transition support box 1 can be actually set according to the needs of the telescope to be used. In this embodiment, the transition support box 1 is a rectangle as a whole, two sides of which are connected to not block the light path of the large field of view, and the other two sides are connected to each other. In order not to block the light path of the sun, the last two sides are connected so that the reflective light bar assembly 2 can be moved out of the light path of the large field of view when switching the night mode. On the outer sur...

Embodiment 2

[0037] The difference between this embodiment and Embodiment 1 is that a grating scale 24 is also provided on one side of the reflective barrier translation guide rail 23, and one end of the grating scale is fixed on the supporting blade 25 in the reflective barrier;

Embodiment 3

[0039] The difference between this embodiment and Embodiment 1 is that a grating scale 34 is provided on one side of the mirror translation guide rail 33 , and one end of the grating scale 34 is fixed on the inner support blade 35 of the reflector.

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Abstract

The invention discloses a two-channel optical path switching device suitable for a day night telescope. The device specifically includes an outer support blade, a transition support box and an inner support device. The inner support device includes a reflection diaphragm assembly and a reflector assembly. The reflection diaphragm assembly specifically includes a reflection diaphragm translation transmission mechanism, a reflection diaphragm translation guide rail, a grating ruler, a reflection diaphragm inner support blade. The reflector assembly includes a reflector, a reflector translation transmission mechanism, a reflector transmission guide rail, a grating ruler and a reflector inner support blade. According to the invention, projection superposition of support blades in optical axis direction is realized through the arrangement of the transition support box and employing inner and outer segmented support. By utilizing the translation transmission mechanisms arranged in the reflection diaphragm assembly and the reflector assembly, electric alternating use of the reflection diaphragm assembly and the reflector assembly is realized and switching of the two optical paths is implemented. The device provided by the invention has advantages of not increasing light barriers and being capable of realizing computer remote control switchover, accurate positioning, quick response and the like.

Description

technical field [0001] The invention relates to the field of telescope structure design, in particular to the field of design of an optical path switching device for a telescope with two sets of optical systems sharing a primary mirror. Background technique [0002] Solar telescopes only observe during the day, which means that terminal imaging equipment and environmental resources are "wasted" to a certain extent during the non-working period at night. At the same time, for the night astronomical telescope, it does not have the ability to observe the sun during the day. In order to realize the continuous observation of the sun and night astronomy by the same telescope and improve the utilization rate of equipment and environmental resources, it is required to develop a multifunctional telescope. [0003] Solar telescopes and night astronomy telescopes have different requirements on the performance of the optical system. For example, scientific targets for night astronomy o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B23/02
Inventor 顾伯忠朱冉姜翔
Owner NANJING INST OF ASTRONOMICAL OPTICS & TECH NAT ASTRONOMICAL OBSE