Share Email Print
cover

Optical Engineering

Supplemental optical specifications for imaging systems: parameters of phase gradient
Author(s): Bin Xuan; Junfeng Li; Peng Wang; Xiao-ping Chen; Shumei Song; Jingjiang Xie
Format Member Price Non-Member Price
PDF $20.00 $25.00

Paper Abstract

Specifications of phase error, peak to valley (PV), and root mean square (rms) are not able to represent the properties of a wavefront reasonably because of their irresponsibility for spatial frequencies. Power spectral density is a parameter that is especially effective to indicate the frequency regime. However, it seems not convenient for opticians to implement. Parameters of phase gradient, PV gradient, and rms gradient are most correlated with a point-spread function of an imaging system, and they can provide clear instruction of manufacture. The algorithms of gradient parameters have been modified in order to represent the image quality better. In order to demonstrate the analyses, an experimental spherical mirror has been worked out. It is clear that imaging performances can be maintained while manufacture difficulties are decreased when a reasonable trade-off between specifications of phase error and phase gradient is made.

Paper Details

Date Published: 1 December 2009
PDF: 8 pages
Opt. Eng. 48(12) 123401 doi: 10.1117/1.3275460
Published in: Optical Engineering Volume 48, Issue 12
Show Author Affiliations
Bin Xuan, Changchun Institute of Optics, Fine Mechanics and Physics (China)
Junfeng Li, Changchun Institute of Optics, Fine Mechanics and Physics (China)
Peng Wang, Changchun Institute of Optics, Fine Mechanics and Physics (China)
Xiao-ping Chen, Changchun Institute of Optics, Fine Mechanics and Physics (China)
Shumei Song, Changchun Institute of Optics, Fine Mechanics and Physics (China)
Jingjiang Xie, Changchun Institute of Optics, Fine Mechanics and Physics (China)


© SPIE. Terms of Use
Back to Top