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HETERODYNE LASER EYE ATTITUDE SENSOR WITH RAPID RESPONSE

Award Information

Agency:
Department of Defense
Branch:
Navy
Award ID:
2008
Program Year/Program:
1988 / SBIR
Agency Tracking Number:
2008
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
OPTRA, Inc
461 Boston Street Topsfield, MA 01983-
View profile »
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 2
Fiscal Year: 1988
Title: HETERODYNE LASER EYE ATTITUDE SENSOR WITH RAPID RESPONSE
Agency / Branch: DOD / NAVY
Contract: N/A
Award Amount: $265,000.00
 

Abstract:

AN IMPROVED LASER DOPPLER TECHNIQUE TO MONITOR EYE ATTITUDE USING AN OPTRA DEVELOPED 2-FREQUENCY HE NE LASER IS PROPOSED. THE HETERODYNE APPROACH MAKES IT POSSIBLE TO UNAMBIGUOUSLY MEASURE EYE ATTITUDE BY INTEGRATING THE DOPPLER SHIFT OF LIGHT SCATTERED OFF THE CORNEA OR SCLERA. THE HIGH SENSITIVITY OF THIS METHOD MAKES IT POSSIBLE TO OPERATE A LOW LIGHT LEVELS--WELL BELOW THE EYE SAFETY EXPOSURE LIMITS.SINCE THE MEASUREMENT SAMPLING RATE IS AT THE HETERODYNE FREQUENCY (TYPICALLY 250 KHZ), THE SYSTEM RESPONSE IS FAST, E.G. LESS THAN 1 MSEC, MAKING THIS METHOD WELL-SUITED FOR MONITORING RAPID SACCADIC EYE MOTIONS AND FOR COUPLING WITH STIMULUS-BASED DISPLAY SYSTEMS. THE RESOLUTION IS HIGH, SINCE THE MEASUREMENT IS PERFORMED AT OPTICAL WAVELENGTHS. MOREOVER, THE METHOD IS CAPABLE OF FOLLOWING LARGE EYE EXCURSIONS. WE PROPOSE, IN ORDER TO MINIMIZE WEIGHT AND HEAD RESTRAINTS, TO USE FIBER OPTICS BOTH TO BRING ILLUMINATION TO THE EYE, AND TO COLLECT THE SCATTERED LIGHT. WHILE THE PHASE I EFFORT INVOLVES ONLY ANALYSIS OF A SINGLE AXIS, THE APPROACH IS INHERENTLY CAPABLE OF MONITORING MULTI-AXIAL MOTIONS.

Principal Investigator:

Geert Wyntjes
6175357670

Business Contact:

Small Business Information at Submission:

Optra Inc.
83 Pine St - W Peabody Office Peabody, MA 01960

EIN/Tax ID:
DUNS: N/A
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No