A high-precision institutional design and mechanical performance analysis of the medium-wave infrared continuous zoom

Bo Gao; Sansan Chang; He Bian; Weining Chen; Yue Zhao; Chao Mei; Erlei Fan; Gaopeng Zhang; Guangdong Zhang

doi:10.1117/12.2503866

12 December 2018 A high-precision institutional design and mechanical performance analysis of the medium-wave infrared continuous zoom

Bo Gao, Sansan Chang, He Bian, Weining Chen, Yue Zhao, Chao Mei, Erlei Fan, Gaopeng Zhang, Guangdong Zhang

Author Affiliations +

Proceedings Volume 10846, Optical Sensing and Imaging Technologies and Applications; 108460J (2018) https://doi.org/10.1117/12.2503866
Event: International Symposium on Optoelectronic Technology and Application 2018, 2018, Beijing, China

Abstract

Compared with visible light imaging systems, the infrared imaging systems have the advantages of strong fogging ability, especially in the high-altitude water vapor and haze environment. and the medium-wave infrared cooling detectors have the advantage of low cost compared to long waves. Therefore, in recent years, The demand for medium-wave infrared continuous zoom systems is increasing. In this design, based on the medium-wave infrared optical system, and summarizing the advantages and disadvantages of the previous zoom structure, a zoom mechanism in the form of a cam and guide was proposed. The cam mechanism, zoom guide mechanism, and compensation guide mechanism were described in detail in this paper. The detailed analysis of the torque demand during zooming was performed. Ansys workbench was used to analyze the main components of the zoom mechanism and the stray light of the system was proposed. The adjustment results show that this kind of structure can realize medium-wave infrared continuous zooming, and the the amount of optical axis shaking during zooming is less than 0.3mrad, which meets the design requirements, and the proposed stray light suppression method effectively suppresses the system's spurious radiation and improves the lens's imaging quality; impact and vibration simulation show that the strength and stiffness of the structure meet the requirements of the mechanical environment, and the imaging system has stable performance.

Citation Download Citation

Bo Gao, Sansan Chang, He Bian, Weining Chen, Yue Zhao, Chao Mei, Erlei Fan, Gaopeng Zhang, and Guangdong Zhang "A high-precision institutional design and mechanical performance analysis of the medium-wave infrared continuous zoom", Proc. SPIE 10846, Optical Sensing and Imaging Technologies and Applications, 108460J (12 December 2018); https://doi.org/10.1117/12.2503866

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
8 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Zoom lenses

Content addressable memory

Mirrors

Infrared radiation

Infrared imaging

Imaging systems

Infrared zoom

Show All Keywords

Keywords/Phrases

Search In:

Publication Years