×

Wavefront coded imaging systems

  • US 20060291058A1
  • Filed: 08/28/2006
  • Published: 12/28/2006
  • Est. Priority Date: 02/03/1995
  • Status: Active Grant
First Claim
Patent Images

1. An infrared imaging system for imaging infrared radiation from an object to a detector, comprising:

  • optics configured for producing, with the infrared radiation, transverse ray intercept curves that are substantially straight, sloped lines;

    a wavefront coding element configured for modifying phase of a wavefront of the infrared radiation such that a modulation transfer function of the optics and wavefront coding element, combined, has reduced variation, over a range of spatial frequencies and caused, in part, by thermal variation within the imaging system, as compared to a modulation transfer function of the optics alone, without the wavefront coding element; and

    a post processor configured for generating an improved modulation transfer function, over the range of spatial frequencies, as compared to the modulation transfer function of a combination of the optics and the wavefront coding element.

View all claims
  • 2 Assignments
Timeline View
Assignment View
    ×
    ×