Universal passive night vision system
US4794246A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 10, 1987 |
| Grant date | Dec 27, 1988 |
| Priority date | — |
| Expiry date | Jul 10, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B23/12
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method and apparatus for arranging primary optical apparatus to provide a high degree of adaptability to other vision equipment. The primary optical apparatus (10) includes a housing (90) with a number of cavities for holding optical components in alignment with respect to various optical paths. An image intensifier tube (114) is mounted in a cavity (112) disposed in a planar face (70) of the housing (90). The planar face (70) is adapted for mounting to a variety of other optical equipment. A collimator (115) is disposed in a housing cavity (113) and optically aligned between the tube (114) and a dual prism (128, 136). The optical images existing the prisms (128, 136) are redirected through turning mirrors (154, 158) and presented through eyepieces (92) to an observer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.