Hand held illuminated pointer
US6070987A · kind A · utility
21Cited by
8References
4Claims
0Family size
Inventor
Key dates
| Filing date | Dec 16, 1997 |
| Grant date | Jun 6, 2000 |
| Priority date | — |
| Expiry date | Dec 16, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B27/20
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A hand-held illuminated presentation pointer is described. In a lighted room, the pointer has all of the advantages of a conventional pointing rod. In a darkened room, the pointer can be illuminated so that it emits light from just one side of the shaft. When used in conjunction with a projected image such as from a 35 mm slide, the pointer is held so that illuminated side of the shaft faces the audience, with the result that the pointer is clearly visible as a glowing line in front of the projected image, and yet the appearance of the image is unaffected. Smaller illuminated pointers for use at close range are also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.