The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Mar. 02, 1993

Filed:

Sep. 09, 1991
Applicant:
Inventor:

John L Johnson, Huntsville, AL (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01B / ;
U.S. Cl.
CPC ...
356353 ; 356346 ; 356365 ; 359499 ;
Abstract

The White Light Optical Fourier Transform Device comprises symmetrical wedges of uniaxial birefringent crystal placed on either side of a half-wave plate to induce an angle between the wavefronts of the polarized components of the beam travelling through the device. The wavefront tilt angle of the output beam is shown to be linearly proportional to the angle of incidence. This is sufficient to generate the necessary phase factor for a Fourier transform of the incident intensity image.


Find Patent Forward Citations

Johnson, John. (1993). White light optical transform device (U.S. Patent No. 5191392). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5191392

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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