Wide-angle passive infrared radiation detector
US5308985A · kind A · utility
34Cited by
2References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 16, 1992 |
| Grant date | May 3, 1994 |
| Priority date | — |
| Expiry date | Mar 16, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S250/01
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
An infrared radiation detector using a reflector comprising a mirrored conic section or faceted reflector to increase the field of view of a sensor. The reflector is mounted in the normal field of view of the sensor, and is truncated so as prevent the reflector from blocking radiation directly in front of the detector. The detector is mounted either on a wall with a nearly 180 degree field of view, or on a post with a nearly 360 degree horizontal field of view and a nearly 180 degree vertical field of view.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.