Optical head and optical head device
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 10, 2009
Grant Date -
Nov 16, 2006
app pub date -
Jul 20, 2006
filing date -
Nov 27, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An optical head which has a prism with an incident section, an internal reflective surface and an emergent surface, and an optical head device which employs the optical head. Light emitted from a light source is incident to the prism through the incident section, reflects at least once on the internal reflective surface and is converged in the vicinity of the emergent surface. Then, the light effuses through the emergent surface as near field light.
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