Weapon aim-training apparatus
US4619616A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 12, 1985 |
| Grant date | Oct 28, 1986 |
| Priority date | — |
| Expiry date | Jun 12, 2005 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF41G3/2616
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Optical aim-training apparatus 10 (FIG. 1) for a rifle 20, or the like comprises a CRT displaying a target image on a scanned line raster. The rifle is simulated and has photo-detection device 21 contained in a housing 22 located adjacent the barrel 19. The photodetection device has a detection axis 23, aligned parallel with the rifle bore axis, which 23 intersects the screen at detection point 34. The rifle sighting device has a sightline also parallel to the bore axis and detection axis intersecting the screen at aim point 33. The offset between aim and detection points is determined by a calibration procedure and when aim is taken at a target image and the trigger depressed a marker region of raster 29, displaced from the image by the calibration offset, is brightened temporarily. A series of light pulses due to scanning of the marker region raster is detected and the screen location of the center of the detector field of view i.e. detection point 34, found. With said calibration offset this enables the actual aim point to be found without masking the target image screen brightening necessary to enable photodetection. A further detection point (FIG. 5) may be defined and the rel…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.