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.
Patent No.:
Date of Patent:
Nov. 08, 1988
Filed:
Jul. 21, 1986
Applicant:
Inventors:
Assignee:
Hamamatsu Photonics Kabushiki Kaisha, Hamamatsu, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B / ; G01S / ;
U.S. Cl.
CPC ...
350-364 ; 350-362 ; 350356 ; 342 35 ; 342 55 ;
Abstract
In a microwave holographic device, the main lobe of a microwave antenna is spatially scanned to receive a microwave signal reflected from an object. The received microwave signal is mixed with a reference signal to generate two-dimensional electric information, synchronized with the scanning. The two-dimensional electric information is used to change the optical properties of an electrooptic material, and then the optical property changes are read out to obtain a holographic image.