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:
Apr. 12, 1977
Filed:
Feb. 09, 1976
Applicant:
Inventor:
Milton H Sussman, Amherst, NY (US);
Assignee:
American Optical Corporation, Southbridge, MA (US);
Primary Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
3501 / ; 350231 ;
Abstract
A two-element eyepiece having a biconvex singlet with the radii of the convex surfaces being substantially identical and a convex-plano doublet formed of a biconvex element having radii of the convex surfaces being substantially equal with a concavo-plano component cemented thereto, has a field of view of approximately 40.degree. with good correction for normal eyepiece aberrations. Eye relief is approximately 80 percent of the effective focal length.