Devices and Methods for Speckle Reduction in Scanning Projectors Using Birefringence
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
N/A
app pub date -
Apr 12, 2016
filing date -
Apr 12, 2016
priority date (Note) -
Published
status (Latency Note)
Importance
Abstract
Devices and methods are described herein that use birefringent elements to reduce speckle. The birefringent elements are angularly separate received laser light into two separated light beams, and then recombine the two angularly separated light beams. At least one scanning mirror is configured to reflect the recombined laser light beam, and a drive circuit is configured to provide an excitation signal to excite motion of the at least one scanning mirror. The angular separation of the light beams generates a relative delay between the two light beams, and this relative delay between light beams generates a temporal incoherence in the recombined light beams. This temporal incoherence can reduce speckle in the projected image.
First Claim
Family
International Classification(s)
- [Classification Symbol]
- [Patents Count]
Cited Art Landscape
Patent Citation Ranking
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