Design of vari-focal panoramic annular lenses based on Alvarez surfaces

Yujie Luo; Jian Bai; Yuan Yao

doi:10.1117/12.2071224

5 November 2014 Design of vari-focal panoramic annular lenses based on Alvarez surfaces

Yujie Luo, Jian Bai, Yuan Yao

Proceedings Volume 9272, Optical Design and Testing VI; 927216 (2014) https://doi.org/10.1117/12.2071224
Event: SPIE/COS Photonics Asia, 2014, Beijing, China

Abstract

We propose a novel design of panoramic annular lenses (PAL) for the imaging of 360° surroundings with a large field of view (FOV) ranging from 30°~105°, which can partly realize the zooming function. Its wavelength band is between 486 and 656 nanometers. The conventional vari-focal PAL is based on the axial shift of some optical components, which will make the blind zone larger and out of the sensing area, while our design is based on the lateral shift, which can make some imaging area zoom in, keep the area of blind zone stay the same, and minimize the whole scale of this system. In order to change the focal length of conventional PAL system, we introduce several pairs of free-form surfaces (Alvarez surfaces) which can be regarded as several plano-spherical lenses and change the focal power of the whole optical system. As we set two different configurations (long focal length and wide angle), all of the optical parameters are designed and optimized with the help of the software (Zemax).

Citation Download Citation

Yujie Luo, Jian Bai, and Yuan Yao "Design of vari-focal panoramic annular lenses based on Alvarez surfaces", Proc. SPIE 9272, Optical Design and Testing VI, 927216 (5 November 2014); https://doi.org/10.1117/12.2071224

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