Laser illumination device
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United States of America Patent
Stats
-
Jul 28, 2020
Grant Date -
Jul 11, 2019
app pub date -
Mar 13, 2019
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)
- 2019 Application Filing Year
- F21V Class
- 3835 Applications Filed
- 2770 Patents Issued To-Date
- 72.23 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 27 Citation Count
- F21V Class
- 98.21 % this patent is cited more than
- 5 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Jan 28, 2028 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jan 28, 2032 |
