Portable cockpit light assembly
US5031080A · kind A · utility
22Cited by
8References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 24, 1990 |
| Grant date | Jul 9, 1991 |
| Priority date | — |
| Expiry date | May 24, 2010 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21V9/04
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A portable incandescent light assembly having a selectably interposable filter is disclosed. The light assembly is particularly applicable to night vision situations for airplane pilots. The light assembly comprises a housing in which a light source and a filter for filtering out infra-red light are located. The light assembly further comprises a mechanism for rotating the filter within the housing between a filtering position in which the filter is disposed across a light output axis and a non-filtering position in which the filter is disposed parallel to the light output axis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.