Acousto-optic device having wide diffraction angle, optical scanner, light modulator, and display apparatus using the acousto-optic device
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 30, 2015
Grant Date -
Feb 28, 2013
app pub date -
Aug 14, 2012
filing date -
Aug 25, 2011
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An acousto-optic device having a wide range of diffraction angle and an optical scanner, a light modulator, and a display apparatus using the acousto-optic device are provided. The acousto-optic device includes a core layer having a periodic photonic crystal structure in which unit cells of predetermined patterns are repeated, a first clad layer on a first surface of the core layer, the first clad layer having a refractive index that is different from a refractive index of the core layer, a second clad layer on a second surface of the core layer, the second surface being opposite the first surface, the second clad layer having a refractive index that is different from the refractive index of the core layer, and a sound wave generator configured to apply surface acoustic waves (SAW) to the core layer, the first clad layer, the second clad layer, or any combination thereof.
First Claim
Other Claims data not available
Family
International Classification(s)
- 2012 Application Filing Year
- G02B Class
- 5744 Applications Filed
- 5025 Patents Issued To-Date
- 87.49 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 7 Citation Count
- G02B Class
- 11.27 % this patent is cited more than
- 10 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Dec 30, 2026 |
