Infrared radiation-burglary detector
US4087688A · kind A · utility
32Cited by
5References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 4, 1976 |
| Grant date | May 2, 1978 |
| Priority date | — |
| Expiry date | Nov 4, 1996 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S250/01
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An infrared radiation-burglary detector comprising an optical system for focusing the radiation upon a radiation receiver. One or more internally reflecting prism surfaces enclose the axis of the optical system and are arranged substantially parallel to such axis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.