IR Light for use with night vision goggles
US4547701A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 1, 1983 |
| Grant date | Oct 15, 1985 |
| Priority date | — |
| Expiry date | Jul 1, 2003 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64D47/04
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An IR source of illumination for use with night vision goggles in which there is provided an array of a minimum of about eight Ga-Al-As diodes per group with two groups per array in a planar distribution with the spacing of the diodes within each group such that at least about 75% of the diodes are coupled to at least two neighboring diodes to provide coupling in the light pattern and to enhance the output thereof and means are provided to operate the diodes in parallel at about the current limit of the diodes whereby beams are generated which converge to provide a beam diameter of approximately 10.degree. with a halo at approximately 30.degree. at ranges beyond 15 meters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.