Target scoring system
US6717684B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 9, 2000 |
| Grant date | Apr 6, 2004 |
| Priority date | — |
| Expiry date | Apr 2, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B5/124
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A device for target scoring includes an elongated retro-reflective member, a first light source, a second light source, a first light sensor, a second light sensor and a processor. The first light source is disposed at a first location and is spaced apart from the retro-reflective member. The first light source is also positioned so as to be able to direct a first beam of light toward the retro-reflective member. The second light source is disposed at a second location spaced apart from both the retro-reflective member and from the first light source. The second light source is also positioned so as to be able to direct a second beam of light toward the retro-reflective member so that the second beam of light intersects the first beam of light over an area so as to define a target area. The first light sensor is disposed adjacent the first light source and is positioned so as to be able to receive light from the first light source that has been reflected from the retro-reflective member. The first light sensor generates a first signal indicative of a first position of a first blockage of illumination from the retro-reflective member. The second light sensor is disposed adjacent the…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.