Enhanced non-lethal visual security device
US6190022A · kind A · utility
46Cited by
16References
33Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 30, 1999 |
| Grant date | Feb 20, 2001 |
| Priority date | — |
| Expiry date | Sep 30, 2019 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2115/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A self-contained non-lethal security device for providing an optimally effective and eye-safe beam for use as a high-brightness visual countermeasure. The security device has one or more wavelengths of laser or light-emitting diode (LED) light in a continuous or flicker mode in order to provide a glare or flashblinding visual effect. A flicker mode of two wavelengths at opposite ends of the visible spectrum (e.g., red and green) produces heightened disorientation to the adversary. Replacing one or all of the laser light source with LEDs for shorter range applications reduces the overall cost of such a security device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.