Wavefront coded imaging systems
First Claim
1. A singlet imaging system for imaging an object onto a detector, comprising:
- a lens configured for producing transverse ray intercept curves which are substantially straight, sloped lines;
a wavefront coding element formed on a surface of the lens and configured such that a modulation transfer function of the lens and wavefront coding element, combined, exhibits reduced variation, over a range of spatial frequencies and caused, at least in part, by aberrations of the lens, as compared to a modulation transfer function of the lens 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 the lens and the wavefront coding element.
2 Assignments
0 Petitions
Accused Products
Abstract
A singlet imaging system for imaging an object onto a detector includes a lens configured for producing transverse ray intercept curves which are substantially straight, sloped lines. A wavefront coding element is formed on a surface of the lens and configured such that a modulation transfer function of the lens and wavefront coding element, combined, exhibits reduced variation, over a range of spatial frequencies and caused, at least in part, by aberrations of the lens, as compared to a modulation transfer function of the lens alone, without the wavefront coding element. A post processor is configured for generating an improved modulation transfer function, over the range of spatial frequencies, as compared to the modulation transfer function of the lens and the wavefront coding element.
104 Citations
18 Claims
-
1. A singlet imaging system for imaging an object onto a detector, comprising:
-
a lens configured for producing transverse ray intercept curves which are substantially straight, sloped lines;
a wavefront coding element formed on a surface of the lens and configured such that a modulation transfer function of the lens and wavefront coding element, combined, exhibits reduced variation, over a range of spatial frequencies and caused, at least in part, by aberrations of the lens, as compared to a modulation transfer function of the lens 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 the lens and the wavefront coding element. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. In an imaging system for imaging an object onto a detector, the imaging system including a lens configured for producing transverse ray intercept curves that are substantially straight, sloped lines, an improvement comprising:
-
a wavefront coding element formed on a surface of the lens and configured such that a modulation transfer function of the lens and the wavefront coding element, combined, exhibits reduced variation, over a range of spatial frequencies and caused, at least in part, by aberrations of the lens, as compared to a modulation transfer function of the lens 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 lens and the wavefront coding element. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
-
Specification