Retrofocus lens system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 28, 1998
Grant Date -
N/A
app pub date -
Jul 11, 1996
filing date -
Jul 13, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A retrofocus lens system comprises, in order from a large conjugate side: a first lens group having a negative refracting power and including a plurality of lens elements; a second lens group having a positive refracting power; and a third lens group having a positive refracting power. Each of the lens elements of the first lens group has a negative refracting power. Following conditional expressions (1) to (3) are satisfied: 1.3
Recipient Email Address Recipient Email Address Comment Recipient Email Address 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
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Add to Portfolio(s)
