Title:
A PARTITIONED MULTI-LINE SCANNING LASER PROJECTOR
Document Type and Number:
WIPO Patent Application WO/2004/063789
Kind Code:
A1
Abstract:
The invention relates to A partitioned multi-line scanning laser projector. In prior scheme there are some disadvantages of low scanning efficiency and degraded quality of scanning lines or the like due to the restriction of the line scanning speed, without satisfying the demand for implement. This invention, according to the deviation of geometry sizes of facets, assigns signals to plural laser display units by using digital techniques. Plural laser display units form a series of light beam by directly arranging or passing through a light beam former, and images were partitioned multi-line scanned by a partitioning line deflecting polygonal drum, which has symmetrical facets setting or conjugated combination setting for facets. Light beams, which had been deflected, joint in the junction planes of the series of light beam. The system employs a light beam series lens group, which includes a quasi telescopic system for outputting parallel beams, focuses the light beam series, and uses projection lenses to project the beams onto the junction planes between light beam series, thus miniaturizing and being practicable.
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Inventors:
WANG QING SHAN (CN)
Application Number:
PCT/CN2004/000027
Publication Date:
July 29, 2004
Filing Date:
January 08, 2004
Export Citation:
Assignee:
WANG QING SHAN (CN)
International Classes:
G02B26/12; H04N1/113; (IPC1-7): G02B26/10
Foreign References:
| CN1415994A | 2003-05-07 | |||
| CN1331425A | 2002-01-16 | |||
| CN1185591A | 1998-06-24 | |||
| US20010012043A1 | 2001-08-09 | |||
| US5838355A | 1998-11-17 | |||
| JP2000153634A | 2000-06-06 |
Attorney, Agent or Firm:
Changsha, Zonekey Patent Law Firm (Changsha, Hunan 1, CN)
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