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:
Sep. 04, 1979
Filed:
Aug. 15, 1977
Helmut A Heine, Herrsching, DE;
Helmut Rosenbusch, Weilheim, DE;
Propper Manufacturing Co., Inc., Long Island City, NY (US);
Heine Optotechnik GmbH & Co. KG, Herrsching, DE;
Abstract
The invention relates to a lighting appliance for generating a light beam for indirect ophthalmoscopy which appliance comprises a housing with a beam outlet aperture through which the beam leaves the housing and first and second means in the housing to respectively modify the color characteristics and the cross-section of the beam leaving the aperture. An externally accessible operating element is provided on the housing which can be independently adjusted to selectively control the first and second means.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile