Laser illumination device
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 24, 2023
Grant Date -
Nov 5, 2020
app pub date -
Jul 17, 2020
filing date -
Jul 26, 2007
priority date (Note) -
In Force
status (Latency Note)
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Abstract
An Electrically Switchable Bragg Grating (ESBG) despeckler device comprising at least one ESBG element recorded in a hPDLC sandwiched between transparent substrates to which transparent conductive coatings have been applied. At least one of said coatings is patterned to provide a two-dimensional array of independently switchable ESBG pixels. Each ESBG pixel has a first unique speckle state under said first applied voltage and a second unique speckle state under said second applied voltage.
First Claim
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International Classification(s)
- 2020 Application Filing Year
- F21V Class
- 3362 Applications Filed
- 2482 Patents Issued To-Date
- 73.83 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 3 Citation Count
- F21V Class
- 77.46 % this patent is cited more than
- 2 Age
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