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:
Jun. 22, 1999
Filed:
Jun. 11, 1997
Applicant:
Inventors:
A Michael Smith, Boulder, CO (US);
Henry Holt Frazier, Broomfield, CO (US);
Assignee:
Steris Corporation, Mentor, OH (US);
Primary Examiner:
Int. Cl.
CPC ...
F21V / ;
U.S. Cl.
CPC ...
362328 ; 362293 ; 362339 ; 362348 ; 362804 ;
Abstract
A surgical light (10) includes a conical shaped reflector (12) which is formed from pre-finished sheet of reflector material into a conical shape. The conical reflector (12) reflects the light from a lamp (14) at a plurality of different angles. Light directly from the lamp and reflected from the reflector strikes a refractor (18) at a plurality of angles of incidence which vary with distance from a central axis (X) of the reflector. The refractor has a plurality of differently shaped prisms (20) whose shape varies with the distance from the central axis to redirect the light to an illumination zone (Z).