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:
Oct. 02, 1984

Filed:

Jun. 30, 1982
Applicant:
Inventors:

George O Reynolds, Waban, MA (US);

Burton R Clay, Wayland, MA (US);

Assignee:

Honeywell Inc., Minneapolis, MN (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G03B / ; G01J / ; G02B / ; G02B / ;
U.S. Cl.
CPC ...
354402 ; 354479 ; 250204 ; 2502 / ; 350311 ; 35016224 ;
Abstract

A system having a scaled anti-aliasing random phase filter for use in optical imaging systems having a sampled focal plane or an automatic focussing device. The filter is scaled so that it may be placed near the focal plane or automatic focus sensing device, yet produce the effect of an anti-aliasing filter at the exit pupil of the optical system. In one example, the filter includes a scaled hologram of a Sayanagi filter located at the exit pupil. In a second example, the filter includes a scaled double chirped diffraction grating.


Find Patent Forward Citations

Reynolds, George. (1984). Focal sensor having optical low pass filter (U.S. Patent No. 4474446). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4474446

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

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