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Irwin FriedmanBridgeport, CT

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Bridgeport, CT

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Irwin Friedman Photo 1

Irwin Friedman - Lawyer

Specialties:
Litigation
ISLN:
907254346
Admitted:
1964
University:
Rutgers University NJ; NJ; Columbia University, New York NY
Law School:
Rutgers University, LL.B.

Publications & IP owners

Us Patents

Wide Angle Lens With Improved Flat Field Characteristics

US Patent:
4772107, Sep 20, 1988
Filed:
Nov 5, 1986
Appl. No.:
6/927215
Inventors:
Irwin Friedman - Weston CT
Assignee:
The Perkin-Elmer Corporation - Norwalk CT
International Classification:
G02B 900
G02B 300
G02B 904
US Classification:
350463
Abstract:
There is disclosed an improvement in wide angle lenses wherein very flat field characteristics are achieved. This is accomplished by a novel two element field flattener just before the image plane. One of the elements is positive and the other negative. It is possible to thereby correct both third and fifth order Petzval curvature, as well as third and fifth order distortion.

Single Mirror Projection Optical System

US Patent:
4779966, Oct 25, 1988
Filed:
Dec 21, 1984
Appl. No.:
6/684760
Inventors:
Irwin Friedman - Weston CT
Assignee:
The Perkin-Elmer Corporation - Norwalk CT
International Classification:
G02B 1700
G02B 0000
US Classification:
350442
Abstract:
A well corrected ring field catadioptric optical system utilizing refractive elements of the same glass type. A virtual relay corrected for axial and lateral primary color incorporates an air-surface doublet and two field lenses to correct for field aberrations to provide a well corrected ring field virtual image. A spherical mirror is used to make the virtual image accessible.

Possible Relatives

Cyril J Friedman  Dean L Friedman  Dale R Friedman  Deborah L Friedman  Denise M Friedman  Dennis J Friedman  Diane H Friedman  Irwin W Jones  Irwin Steinberg  Irwin M Stelzer 

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