Optical aiming device employing radioluminous material
US3937968A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 2, 1969 |
| Grant date | Feb 10, 1976 |
| Priority date | — |
| Expiry date | May 2, 1989 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J65/06
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An aiming device of the general type shown in U.S. Pat. No. 2,488,541 is disclosed. The device comprises a tubular housing for mounting on a gun or other device which must be manually aimed and the housing contains a spot source of light which is projected rearwardly toward one eye of the user through a collimator contained within the housing. The light source is preferably a radiation activated phosphor of one color housed in a filter of a different color in order to present automatically a spot source of light of the color of the filter during high ambient lighting intensity and a spot source of light the color of the phosphor during low ambient lighting intensity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.