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. 09, 1997
Filed:
Mar. 08, 1996
Applicant:
Inventor:
Richard Edmund Albrecht, Honeoye Falls, NY (US);
Assignee:
Eastman Kodak Company, Rochester, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B / ; G03B / ;
U.S. Cl.
CPC ...
396 62 ; 396175 ;
Abstract
A photographic flash apparatus includes a flash tube for producing a flash of light; a reflector located behind the flash tube for concentrating the light produced by the flash tube into a beam having a particular scene coverage angle; and an adjustable wave-lens device positioned in the beam to adjust the scene coverage angle of the beam. The adjustable wave-lens device includes first and second wave-lens elements and a lever for displacing one of the wave-lens elements with respect to the other to vary the optical power of the adjustable wave-lens element, thereby adjusting the scene coverage angle of the beam.