Uniform light source for an imaging instrument
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 4, 2014
Grant Date -
Nov 24, 2011
app pub date -
Apr 21, 2011
filing date -
Apr 21, 2010
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The approach of one embodiment of the present invention is to mechanically vibrate a length of fiber optic cable transmitting coherent laser light, so that a mechanical resonance in the optical fiber is excited. This is achieved by suspending the fiber optic cable between two points and controlling both the axial tension on the suspended fiber optic cable as well as the mechanical forcing frequency. The cyclic, high-frequency mechanical perturbations of the fiber rapidly vary the path length and internal reflection angles of one or more respective modes of the transmitted laser light. In certain embodiments, the system may be tuned to induce a standing mechanical wave in the fiber. Higher-harmonic waveforms and higher amplitudes in the resonant fiber produce excellent speckle reduction and uniform intensity distributions.
First Claim
Other Claims data not available
Family
International Classification(s)
- 2011 Application Filing Year
- G02F Class
- 2772 Applications Filed
- 2281 Patents Issued To-Date
- 82.29 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Aug 4, 2025 |
