An assembly and adjustment method of an off-axis parabolic mirror group

A technology of off-axis parabolic mirror and its assembly and adjustment method, which is applied in the field of assembly and adjustment of off-axis parabolic mirror group, which can solve the problems of difficult to achieve high-precision standard installation and adjustment, cannot eliminate system errors, etc., and achieve the effect of improving the accuracy of assembly and adjustment

CN113204127BActive Publication Date: 2022-03-08CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2022-03-08

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
Patent Text Reader

Abstract

The invention relates to an assembly and adjustment method of an off-axis parabolic mirror group, which belongs to the technical field of assembly and adjustment methods. It solves the problem that the installation and adjustment methods in the prior art are generally aimed at the installation and adjustment of a single off-axis parabolic mirror. In the adjustment method of the present invention, a plane reflecting mirror is added on the back of the off-axis parabolic mirror as the back mirror, the pitch angle and azimuth angle of the off-axis parabolic mirror are monitored by aligning the back mirror with a Leica theodolite, and the precise measuring prism is used as the box body and each The horizontal reference of the off-axis parabolic mirror uses an interferometer to emit a beam of parallel incident light. On the one hand, by adjusting the thickness and position of the spacer of the off-axis parabolic mirror, the brightest and clearest image of the optical camera is found, and the off-axis parabolic mirror is fixed. On the one hand, the adjustment of the off-axis parabolic mirror is completed by observing the self-collimating interference image. The assembling method has high assembling accuracy.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention belongs to the technical field of assembly and adjustment methods, and in particular relates to an assembly and adjustment method of an off-axis parabolic mirror group. Background technique

[0002] Off-axis parabolic mirrors can generate high-quality parallel beams without central occlusion with a simple surface shape, which can effectively improve the imaging quality of the optical system and simplify the optical system. Using multiple off-axis parabolic mirrors to form an off-axis parabolic mirror group can achieve high system efficiency. The demand for precision miniaturization. Since the off-axis parabolic mirror is not a rotationally symmetrical surface, compared with the ordinary spherical mirror, the off-axis parabolic mirror also needs to consider its own rotation vector. For the assembly and adjustment of multi-off-axis parabolic mirror groups, there are extremely high requirements for the construction of the overall optical sy...

Examples

Embodiment Construction

[0037] In order to further understand the present invention, the preferred embodiments of the present invention will be described below in conjunction with specific embodiments, but it should be understood that these descriptions are only for further illustrating the features and advantages of the present invention rather than limiting the patent requirements of the present invention.

[0038]The method for assembling and adjusting the off-axis parabolic mirror group of the present invention, the off-axis parabolic mirror group is composed of N groups of off-axis parabolic mirror groups, and each group of off-axis parabolic mirror groups is composed of two off-axis parabolic mirror groups;

[0039] Such as figure 1 As shown, when N=1, the adjustment method includes the following steps:

[0040] Step 1, setting a back mirror on the back of each off-axis parabolic mirror, the back mirror is a plane reflector;

[0041] Step 2. Calculate the theoretical position of the off-axis p...