Centering tool and method for determining reference of non-spherical reflector by using same

A mirror and aspheric surface technology, which is applied in installation, optics, instruments, etc., can solve the problems of aspheric mirror surface change, reference change, etc., achieve high reset accuracy, easy disassembly, and ensure the effect of coincidence accuracy

Inactive Publication Date: 2012-07-25
XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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  • Abstract
  • Description
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Problems solved by technology

[0007] In order to solve the technical problem that the existing method for determining the optical axis reference of an aspheric reflector leads to changes in the reference and the surface type of the aspheric reflector, the present invention provides a centering tool and a method for determining the reference of an aspheric reflector using the tool

Method used

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  • Centering tool and method for determining reference of non-spherical reflector by using same
  • Centering tool and method for determining reference of non-spherical reflector by using same
  • Centering tool and method for determining reference of non-spherical reflector by using same

Examples

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Embodiment

[0096] A method of determining the datum of an aspheric mirror,

[0097] 1] Design and process the spindle sleeve that matches the inner hole of the primary mirror; figure 2 , image 3 said

[0098] 2] Determine the optical axis of the primary mirror (the primary mirror in this application is an aspheric reflector) through the centering process; Figure 4 , Figure 5 shown

[0099] 3] Based on the determined optical axis, turn the inner wall and end face of the primary mirror sleeve to ensure the concentricity between the inner wall of the sleeve and the optical axis of the primary mirror and the perpendicularity between the end face of the sleeve and the optical axis; Figure 6 shown

[0100] 4) Redesign and process the centering reference reticle, including the flat glass reticle engraved with the crosshair and its sleeve, and center it to ensure that the center of the crosshair coincides with the optical axis and the glass plane is perpendicular to the optical axis; ...

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Abstract

The invention discloses a centering tool and a method for determining reference of a non-spherical reflector by using the centering tool. The centering tool comprises a reflector centering tool, wherein the reflector centering tool comprises a mother board and a spindle sleeve; one end of the mother board is fixed on a mechanical rotating shaft, and the other end of the mother board is fixed with the spindle sleeve; the mother board and the spindle sleeve are arranged coaxial to the mechanical rotating shaft; and the spindle sleeve is adaptive to an inner hole of the non-spherical reflector. The technical problems that the reference is changed and the profile of the non-spherical reflector is changed in the conventional method for determining reference of an optical axis of the non-spherical reflector are solved, a reticle reticule of the centering reference tool represents the optical axis of the non-spherical reflector with high precision, the concentricity of the reticule and the optical axis can be about 0.006mm, and the verticality of the reticule and the optical axis can be about 0.005mm.

Description

technical field [0001] The invention relates to a centering tool and a method for determining the datum of an aspheric reflector by using the tool. Background technique [0002] Such as figure 1 The positions of the main mirror and the secondary mirror are shown. The optical axes of the primary mirror and the secondary mirror must be on a straight line, so as to achieve a good imaging effect. The general method is to find the optical axis reference of the primary mirror, and then adjust the secondary mirror The optical axis of the mirror is unified with it, and the primary mirror mentioned here is an aspheric reflector. [0003] The traditional method of determining the optical axis reference of the aspheric mirror is to design a tool called "three tops and three pulls". First, connect the tooling to the aspheric mirror, then find the optical axis of the aspheric , Pull the screw to adjust the spatial position and attitude of the reticle until the reticle coincides with th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B7/182G02B27/32B23B1/00
Inventor 付兴段战军耿波段学霆李华
Owner XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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