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:
Jan. 04, 1983
Filed:
Apr. 06, 1978
Applicant:
Inventor:
William E Roberts, Palos Verdes Penn., CA (US);
Assignee:
AM International, Inc., Los Angeles, CA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F21S / ; F21V / ; G02B / ;
U.S. Cl.
CPC ...
362224 ; 350167 ; 362 97 ; 362225 ; 362260 ;
Abstract
In an apparatus capable of duplicating jacketed and unjacketed microfiche, a bank of clear cylindrical lenses is provided, each lens being divided into segments by a series of substantially opaque baffles. The lenses are used with a corresponding bank of aperture lamps, and are disposed between the lamps and microfiche to provide relatively uniform, collimated light upon an image plane, the side of the lenses closest to the microfiche being flattened, and the baffles having an index of refraction lower than that of the clear segments of the lens.