Extra wide angle fresnel lens array for infrared motion detector

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Information

Patent Grant
D315808

References
Source

Patent Number
D315,808
Date Filed
Monday, February 27, 1989
35 years ago
Date Issued
Tuesday, March 26, 1991
33 years ago

Inventors
- Richard N. Claytor
- Russell G. Torti
Original Assignees
- Fresnel Technologies, Inc.
Examiners
- Lucas; Susan J.
Agents
- Bradley; James E.

US Classifications
- D26 - Lighting
- D10 - Measuring, testing, or signalling instruments
Field of Search
- US
- D10 121
- D26 118
- D26 120
- D26 121
- D26 122
- D26 123
- D26 128-137
- 362 319
- 362 326-340
- 350 432-436
- 350 452
- 350 167
- 350 16211
- 350 16218
- Term of Grant
  14Years

Information

Abstract

Description

Claims

The ornamental design for an extra wide angle fresnel lens array for infrared motion detector, as shown and described.

US Referenced Citations (5)

Number	Name	Date	Kind
1970358	Bull et al.	Aug 1934
3463118	Wood	Aug 1969
3708222	Stern	Jan 1973
3883733	Nagel	May 1975
4772094	Sheiman	Sep 1988

Foreign Referenced Citations (2)

Number	Date	Country
968412	Feb 1958	DEX
2173013A	Oct 1986	GBX