Optical beam scanning system

Optical: systems and elements – Deflection using a moving element

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

359211, 359305, 250235, 346108, G02B 2608, G02B 133, G01D 942

Patent

active

052259242

ABSTRACT:
An optical beam scanning system for scanning photosensitive material (1) comprises a laser (201), a beam splitter (204) for producing multibeams (LB.sub.a, LB.sub.b), AOM's (207a, 207b), a multibeam adjuster (300) for turning the multibeams to intersect each other at a prescribed point (P.sub.C), a horizontal expander (211), an AOD (213), a vertical expander (214), a deflection direction adjuster (400) for rotating a deflection direction of the multibeams, and a variable focusing mechanism (500) comprising a plurality of object lenses (501-504). A pixel pitch and a spot diameter on the photosensitive material can be changed separately from each other by exchanging the object lenses and by adjusting an angle of intersection of multibeams (B.sub.a, B.sub.b) by means of the multibeam adjuster. Cylindrical lenses of the horizontal and vertical expanders are so positioned that they compensate a cylindrical lensing effect of the AOD.

REFERENCES:
patent: 3365579 (1968-01-01), Giashwiller
patent: 3435228 (1969-03-01), Gordon
patent: 3746427 (1973-07-01), Foster
patent: 3835249 (1974-09-01), Dattilo et al.
patent: 4000493 (1976-12-01), Spaulding et al.
patent: 4107701 (1978-08-01), Sprague et al.
patent: 4209224 (1980-06-01), Stewart, Jr.
patent: 4257016 (1989-03-01), Kramer, Jr. et al.
patent: 4426134 (1984-01-01), Abramovitz et al.
patent: 4455485 (1984-06-01), Hosaka et al.
patent: 4733252 (1988-03-01), Daniele et al.
patent: 4773754 (1988-09-01), Gisele
patent: 4810068 (1989-03-01), Shimazu et al.
patent: 4841135 (1989-06-01), Goto et al.
patent: 4855761 (1989-08-01), Hiiro
patent: 4863226 (1989-09-01), Houpt et al.
patent: 4896169 (1990-01-01), Kuwabara et al.
patent: 4971413 (1990-11-01), Znoue
patent: 5002348 (1991-03-01), Wolf

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Optical beam scanning system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Optical beam scanning system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical beam scanning system will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1694134

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.