Variable focus liquid crystal lens system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 26, 1980
Grant Date -
N/A
app pub date -
Dec 27, 1977
filing date -
Dec 27, 1977
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An optical lens system is disclosed which comprises a body of a nematic liquid crystal material placed in a variable electric or magnetic field. In response to variation of the field strength from zero to an upper limit, the focal length of the lens system changes continuously from a first focal length to a second focal length. The new lens system may be used, e.g., in cameras, telescopes, binoculars, projectors, and eyeglasses.
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