Vertical barrier fresnel lens array for infrared motion detector systems

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Information

Patent Grant
D315424

References
Source

Patent Number
D315,424
Date Filed
Monday, February 27, 1989
36 years ago
Date Issued
Tuesday, March 12, 1991
34 years ago

Inventors
- Richard N. Claytor
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 a vertical barrier fresnel lens array for infrared motion detector systems, as shown and described.

US Referenced Citations (2)

Number	Name	Date	Kind
3740119	Sakurai et al.	Jun 1973
4011857	Rice	Mar 1977

Foreign Referenced Citations (2)

Number	Date	Country
968412	Feb 1958	DEX
2537547	Mar 1976	DEX

Non-Patent Literature Citations (1)

Entry
Corning "Lighting Glassware for Architecture" catalog, .COPYRGT.1963, p. 2, Curved Lens Panel #65.