Automatic ranging gun sight
US4695161A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 6, 1984 |
| Grant date | Sep 22, 1987 |
| Priority date | — |
| Expiry date | Aug 6, 2004 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B27/36
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An auto-ranging sight includes an optical viewer that includes a reticle within the viewer. The reticle is a liquid crystal display having a plurality of horizontal lines which can individually be selected to be visible. A distance measuring device is provided for measuring distance from the sight to a target. Parameter information is input to a microprocessor to describe the flight of a projectile. The microprocessor also receives the distance information. The microprocessor then determines the required elevation for the optical viewer and attached weapon. It then selects one of the horizontal lines as the visible horizontal cross-hair. The operator then aligns the horizontal and vertical cross-hairs seen through the viewer such that the projectile can be accurately directed to the target. Optionally, a group of liquid crystal display vertical lines can be provided to accommodate windage adjustment for aiming the target. The range determination can be provided by systems using radar, laser, ultrasonic or infrared signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.