Design of microscope imaging system for double-telecentric and two-position zoom microscope

JI Mian; SHEN Yu; LIU Xiaofang

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Design of microscope imaging system for double-telecentric and two-position zoom microscope

Optical Devices & System Design | 更新时间：2026-05-20

- Design of microscope imaging system for double-telecentric and two-position zoom microscope
- OPTICAL TECHNIQUE Vol. 52, Issue 3, Pages: 318-323(2026)
- 作者机构：
  
  1.河南质量工程职业学院，河南平顶山 467000
  2.河南城建学院，河南平顶山 467041
- 作者简介：
- 基金信息：
- DOI：
  CLC： O439
- Received：12 January 2026，
  
  Revised：2026-03-09，
  
  Accepted：14 April 2026，
  
  Published：20 May 2026
- 稿件说明：
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冀勉,沈羽,刘晓芳.双远心两档变倍显微镜成像系统设计[J].光学技术,2026,52(03):318-323.

JI Mian,SHEN Yu,LIU Xiaofang.Design of microscope imaging system for double-telecentric and two-position zoom microscope[J].OPTICAL TECHNIQUE,2026,52(03):318-323.
冀勉,沈羽,刘晓芳.双远心两档变倍显微镜成像系统设计[J].光学技术,2026,52(03):318-323. DOI：

JI Mian,SHEN Yu,LIU Xiaofang.Design of microscope imaging system for double-telecentric and two-position zoom microscope[J].OPTICAL TECHNIQUE,2026,52(03):318-323. DOI：

摘要

针对航空航天精密零部件的大视场、高分辨和高精度的检测需求，设计了一种双远心两档变倍显微镜光学系统。提出在光轴方向以变倍组和补偿组作运动匹配的方法，通过同步切换达到双远心大变倍比成像的目的，并且为了减小机械运动结构的复杂度，在变化成像倍率的过程中孔径光阑随补偿组一起运动。通过这种方法设计了一个双远心变倍显微镜光学系统，其成像放大率分别为-0.4和-2.0，且该光学系统的变倍比为5×，畸变小于5.0µm，双远心度误差小于0.35°，光学总长为142mm。双远心两档变倍显微镜系统具有变倍比大、畸变小、变倍结构简单和易制造等优点，在精密测量领域具有广阔的应用前景。

Abstract

To meet the detection requirements of large field of view

high resolution

and high precision for aerospace precision components

a double-telecentric two-position zoom microscope has been designed. A method is proposed for motion matching between the zoom group and the compensation group in the optical axis direction

achieving dual telecentric imaging with a large zoom ratio through synchronous switching. To reduce the complexity of the mechanical motion structure

the aperture stop moves along with the compensation group during the zoom process. Using this method

a dual-telecentric zoom microscope optical system with imaging magnifications of -0.4 and -2.0 was designed. The zoom ratio of this optical system is 5×

with distortion less than 5.0 µm

dual-telecentric error less than 0.35°

and a total length of 142 mm. The dual-telecentric two-position zoom microscope system possesses advantages such as a large zoom ratio

low distortion

a simple zoom structure

and ease of manufacturing

making it have broad application prospects in the field of precision measurement.

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references

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