Telescope primary mirror center radial positioning mechanism and assembly and adjustment method thereof

A technology of radial positioning and adjustment method, which is applied in the direction of telescope, installation, optics, etc., can solve the problem that the positioning mechanism cannot accurately locate the main mirror of the telescope, and achieve the effect of strong practicability and high precision

Active Publication Date: 2014-11-19
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0006] In order to solve the problem that the existing positioning mechanism cannot accurately locate the main mirror of the telescope, the present invention provides a radial positioning mechanism for the center of the main mirror of the telescope and its installation and adjustment method

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  • Telescope primary mirror center radial positioning mechanism and assembly and adjustment method thereof
  • Telescope primary mirror center radial positioning mechanism and assembly and adjustment method thereof
  • Telescope primary mirror center radial positioning mechanism and assembly and adjustment method thereof

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Embodiment Construction

[0036] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0037] A radial positioning mechanism for the center of a telescope primary mirror of the present invention, such as figure 1 As shown, the mechanism is located in the central hole of the primary mirror 8, and mainly includes a mandrel 1, a shaft sleeve 2, a flexible positioning head 3, a wedge block 4, an adjusting washer 5 and a pre-tightening screw 6, and the mandrel 1 is fixed on the base 10, the shaft sleeve 2 is set on the outside of the mandrel 1, leaving a gap between them, the shaft sleeve 2 and the primary mirror 8 are glued, and the flexible positioning head 3 is installed on the mandrel 1;

[0038] Such as Figure 4 As shown, the flexible positioning head 3 is mainly composed of a positioning block 3-1 and a ring 3-2, and six positioning blocks 3-1 are evenly distributed on the surface of the ring 3-2 and are connected with the ring 3-2 as a whol...

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Abstract

The invention discloses a telescope primary mirror center radial positioning mechanism and an assembly and adjustment method thereof, relating to the technical field of primary mirror support and solving the problem that the existing positioning mechanism cannot accurately position the primary mirror of a telescope. The mechanism is located at a center hole of the primary mirror and comprises a mandrel fixed on a base and a shaft sleeve sleeved outside the mandrel; the shaft sleeve is in glue joint with the primary mirror; a flexible positioning head is fixed on the mandrel and mainly comprises a positioning block and a ring connected together; at least three positioning blocks are uniformly distributed on the ring; the inner surface of each positioning block is a ring convex surface which is in ring line contact with the inclined plane of a wedge block, and the outer surface is an arc surface which is in ring line contact with the inner surface of the shaft sleeve; an adjustment gasket is connected with the ring through a pre-tightening screw and corresponds to each positioning block; the wedge block is mounted at the upper part of the adjustment gasket through a pre-tightening screw, and the inclined plane of the wedge block is in contact with the inner surface of the positioning block; and the part between the positioning block and the ring is a flexible link. The mechanism does not generate over-positioning and additional stress and has high precision.

Description

technical field [0001] The invention relates to the technical field of primary mirror support, in particular to a radial positioning mechanism for the center of a telescope primary mirror and an assembly method thereof. Background technique [0002] The telescope is an important means in astronomical observation. Its performance determines the size of the universe that people can observe. The primary mirror is the key optical component in the telescope system. Its positioning accuracy and surface shape directly determine the size of the telescope. image quality. There is a central hole in the center of the primary mirror, which itself has a certain thickness, the thickness matches the length of the bushing, and the positioning mechanism is located in the central hole of the primary mirror. [0003] In an ideal radial positioning device for the center of the telescope, the mandrel only acts as a center and does not generate additional stress on the mirror surface. The entire...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B7/182G02B23/00
Inventor 陈宝刚苏燕芹赵宏超张景旭杨飞
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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