Fresnel spiral reflector and method for making same
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 21, 1982
Issued Date -
N/A
app pub date -
Apr 7, 1980
filing date -
Apr 7, 1980
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A spiral Fresnel reflector is formed by plotting a predetermined developed spiral on a flat sheet of reflecting material, cutting the flat sheet of reflecting material along the developed spiral and winding up the developed spiral until the spiral arms focus reflective light at a focal area. The developed spiral can have either a positive or a negative focal length.
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