Lens for luminaire

- McGraw-Edison Company
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Description

FIG. 1 is a perspective view of a lens for luminaire showing my new design, the grid pattern being partially shown for convenience of illustration, it being understood that the pattern is continuous over the surface of the lens;

FIG. 2 is a perspective view of the interior of the lens, the grid pattern being partially shown for convenience of illustration, it being understood that the pattern is continuous over the surface of the lens; and

FIG. 3 is a side elevational view of the lens for luminaire according to the invention.

Referenced Cited
U.S. Patent Documents
D170084 July 1953 Glatthar et al.
3766375 October 1973 Edman et al.
Foreign Patent Documents
649551 October 1962 CAX
Other references
  • Lighting, 4-1960, p. 15-Diffuser. Lighting Design & Application, 12-1977, p. 13, Luminaire Diffuser (Item 8).
Patent History
Patent number: D262914
Type: Grant
Filed: Apr 6, 1979
Date of Patent: Feb 2, 1982
Assignee: McGraw-Edison Company (Rolling Meadows, IL)
Inventor: Paul J. Kristofek (Hickory Hills, IL)
Primary Examiner: Susan J. Lucas
Attorneys: Ronald J. LaPorte, Jon C. Gealow, Charles W. MacKinnon
Application Number: 6/27,781
Classifications
Current U.S. Class: Frusto-conical Or Pyramidal (D26/135)
International Classification: D2605;