Laser scanning optics and laser scanning method using the same
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 25, 2003
Grant Date -
Aug 22, 2002
app pub date -
Feb 14, 2002
filing date -
Feb 19, 2001
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Laser scanning optics for scanning a laser beam issuing from a laser in the main scanning direction while repeatedly steering it in the subscanning direction is disclosed. The laser scanning optics includes focusing optics for focusing the laser beam, a first deflector for steering the laser beam in the subscanning direction, and a second deflector for steering the laser beam in the main scanning direction. The focusing optics causes the laser beam to form an elliptical beam spot, which is elongate in the main scanning direction, in a scanning plane. The first deflector is driven such that the laser beam is scanned at a higher speed in the subscanning direction than in the main scanning direction. The first deflector is so controlled, based on a value input beforehand or data measured beforehand, as to correct the distortion of linearity in the main scanning direction by subscanning.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully