Lens driving apparatus
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 22, 2003
Grant Date -
Jan 10, 2002
app pub date -
Jul 6, 2001
filing date -
Jul 6, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The present invention provides a lens driving apparatus which can prevent a lens barrel from increasing its size and cost while making it possible to detect the position of a movable lens group. A first lens group, a second lens group, and a third lens group are disposed along an optical axis, among which the second lens group is a movable lens group movable along the optical axis. A second lens frame holding the second lens group is formed with a detection plate having a predetermined width in the direction of optical axis. A detector detects passages of both end portions of the detection plate, whereby the position of the second lens group can be detected.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
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