Method of word screen formation by laser light projection and the structure for the same
US6222459A · kind A · utility
12Cited by
6References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 22, 1999 |
| Grant date | Apr 24, 2001 |
| Priority date | — |
| Expiry date | Jul 22, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G3/02
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention relates to a method of word screen formation by laser light projection and the structure of word formation by laser light projection, and in particular, relates to a plurality of laser production devices arranged in a single column and by rapid reciprocating action of the devices to project multiple columns of light track and form word arrays.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.