Claims
- 1. A process of designing a diffractive optics device and to synthesize phase and amplitudes of a far field diffraction pattern of an optical wave emitted by a phase-only spatial light modulator using principles of speckle generation and established optics, wherein said process comprises the steps of:a first selecting step for selecting desired far field pattern of the diffractive optical wave emitted by the spatial light modulator performing a Fourier transform using fast Fourier transform identities from a table of Fourier transform pairs on the desired far field pattern of the optical wave to get a desired source distribution description that determines complex valued pixel amplitudes αi for each pixel i; and a second selecting step for selecting pixel phases by a combination of random phase selection for specified portions of the diffraction pattern, and conventional pixel phase selection methods for predetermined portions of the diffraction pattern; and wherein said process comprises a pseudorandom encoding process, and wherein said second selection step uses a MEDOF method for encoding predetermined portions of the modulation pattern and random phase encoding for other portions of the modulation pattern.
Parent Case Info
This application is a continuation-in-part of U.S. Ser. No. 08/756,967 filed Oct. 31, 1996, now abandoned.
US Referenced Citations (2)
Number |
Name |
Date |
Kind |
4765714 |
Horner et al. |
Aug 1988 |
|
5363186 |
Cohn et al. |
Nov 1994 |
|
Continuation in Parts (1)
|
Number |
Date |
Country |
Parent |
08/756967 |
Oct 1996 |
US |
Child |
09/538245 |
|
US |