Cat eye effect weaken based on achromatic prism and phase corrector

Dalin Song; Jun Chang; Yifei Zhao; Zexia Zhang

doi:10.1117/12.2320464

17 September 2018 Cat eye effect weaken based on achromatic prism and phase corrector

Dalin Song, Jun Chang, Yifei Zhao, Zexia Zhang

Proceedings Volume 10746, Novel Optical Systems Design and Optimization XXI; 107460O (2018) https://doi.org/10.1117/12.2320464
Event: SPIE Optical Engineering + Applications, 2018, San Diego, California, United States

Abstract

Sensor surface or division plate of optoelectronic imaging system can retroreflect incident beams energy strongly. This so-called cat eye effect is useful for engineering application, such as range finding. However, it is hazardous for the hidden photoelectric equipment be detected by a laser active device based on cat eye effect. In this paper, we propose a new scheme of geometrical optics imaging system to change the beam incident angle on the detector surface. Thus, the reflected beam energy could pass through a completely different route and be blocked by the lens aperture, so it cannot be reflected back to the active detection device. The aim of anti-detection for the lens design is achieved by usage of prism and phase corrector. A prism plays a role of bending beam direction of propagation to deviate from the optic axis and maintaining the direction of image surface simultaneously. The cemented achromatic prism used herein is to correct the chromatic aberration induced by the prism. And we also adopt a fixed phase corrector to compensate the large amount of oblique astigmatism following a prism in nonparallel beams. A final anti-detection optical imaging lens is shown as example. We offer the detailed design and simulation results, which shows that this kind of optics system can reduce the cat eye reflected signal substantially and maintain acceptable imaging performance.

Citation Download Citation

Dalin Song, Jun Chang, Yifei Zhao, and Zexia Zhang "Cat eye effect weaken based on achromatic prism and phase corrector", Proc. SPIE 10746, Novel Optical Systems Design and Optimization XXI, 107460O (17 September 2018); https://doi.org/10.1117/12.2320464

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

Prisms

Eye

Imaging systems

Mirrors

Optical imaging

Chromatic aberrations

Fluctuations and noise

Show All Keywords

Keywords/Phrases

Search In:

Publication Years