Optical pickup device and position adjusting method for light separating element
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 30, 2013
Grant Date -
Jan 3, 2013
app pub date -
Jun 29, 2012
filing date -
Jun 29, 2011
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An astigmatism element converges laser light in a first direction for generating a first focal line, and converges the laser light in a second direction perpendicular to the first direction for generating a second focal line. A light separating element guides the laser light entered into two first areas and into two second areas to four respective positions different from each other, and guides the laser light entered into a third area to a position different from the four positions. When an intersection of two straight lines extending in parallel to the first direction and the second direction and intersecting with each other is aligned with an optical axis of the laser light, the third area is disposed at the intersection of the two straight lines.
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