Combat vehicle with a hatchway in its armored roof and including a system of periscopes
US5128803A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 7, 1991 |
| Grant date | Jul 7, 1992 |
| Priority date | — |
| Expiry date | May 7, 2011 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF41H5/266
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A combat vehicle, especially a military tank, has a hatchway in its armored roof and periscopes in the immediate vicinity of the hatchway. Each periscope has an ocular inside the vehicle and an objective outside it. A channel that accommodates the optical path extends between them. The channel extends through a protective block of neutral material on the roof of the vehicle. At least one section of the channel is completely occupied by optical glass. The ocular extends directly out of that section although the objective rests on the top of the block. The block can consist of a stack of separate sheets. The objective can have an outlook aperture and a direct-view aperture. The mirror in the objective can be semitransparent or moved out of the optical path.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.