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:
Mar. 19, 1996
Filed:
Dec. 30, 1994
Applicant:
Inventors:
J Robert Zinter, Rochester, NY (US);
Paul L Ruben, Penfield, NY (US);
Assignee:
Amarel Precision Instruments, Rochester, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B / ; G02B / ; G02B / ;
U.S. Cl.
CPC ...
359793 ; 359362 ; 359368 ; 359643 ; 359656 ;
Abstract
A multiple lens element macrolens system operative as a single lens has a high light transmission value and a wide field of view of an object to be viewed. The macrolens system provides a long object working distance and an extended back focal distance to an image plane. An object group of lens elements is spaced by a substantial axial gap from an image group of lens elements. The gap and the working and back focal distances facilitate inclusion of various auxiliary components into an optical instrument which incorporates the macrolens system.