Diffractive optical element, method of producing same, and optical apparatus
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 14, 2006
Issued Date -
N/A
app pub date -
Sep 15, 2004
filing date -
Mar 18, 2002
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A diffractive optical element simultaneously realizes a plurality of optical functions and is small in size and excellent in productivity. The diffractive optical element has a multilayer member composed of a plurality of layers each of which is made of an optical material. Adjacent layers of the multilayer member are in contact with each other, and have different refractive indexes from each other. The multilayer member includes boundary faces between the contacted adjacent layers. Uneven patterns that cause transmitted light to undergo desired diffraction are formed on at least two faces of three faces including the boundary faces and outer surfaces of the multilayer member. The uneven patterns formed on different faces have different shapes or sizes in the direction of the layers of the multilayer member.
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