Title:
AN OPTICAL SENSOR AND METHOD FOR DETECTING PROJECTILE IMPACT LOCATION AND VELOCITY VECTOR
Document Type and Number:
WIPO Patent Application WO2003036338
Kind Code:
A3
Abstract:
An optical sensor (P) and method for detecting a projectile velocity vector includes optically detecting the arrival of a projectile. The sensor (P) includes a sandwich of a transparent layer (20) within two reflective layers (15), which in turn are within two opaque layers. An optical sensor structure includes a set of sensors positioned in respective planes, wherein at least two non-parallel optical sensors (P) are used for each trajectory dimension of interest that differs from the primary direction of motion of the projectile and one additional optical sensor (P) may be used for independent measurement of velocity attenuation. An optical sensor structure includes a set of sensors positioned in respective planes, wherein at least two of the optical sensors (P) are oriented in respective planes that tare parallel and potentially offset from each other. A tiling of the optical sensors or optical structures is also possible.
Inventors:
GAUTHIER LEO R JR (US)
DREWRY DAVID G JR (US)
BRUNNER LEROY (US)
DREWRY DAVID G JR (US)
BRUNNER LEROY (US)
Application Number:
PCT/US2002/034377
Publication Date:
August 21, 2003
Filing Date:
October 25, 2002
Export Citation:
Assignee:
UNIV JOHNS HOPKINS (US)
GAUTHIER LEO R JR (US)
DREWRY DAVID G JR (US)
BRUNNER LEROY (US)
GAUTHIER LEO R JR (US)
DREWRY DAVID G JR (US)
BRUNNER LEROY (US)
International Classes:
F41J5/02; G01P3/68; (IPC1-7): G02B6/26; G02B6/42
Foreign References:
| US5157262A | 1992-10-20 | |||
| US20020003231A1 | 2002-01-10 | |||
| US5991479A | 1999-11-23 | |||
| US6045888A | 2000-04-04 | |||
| US6198694B1 | 2001-03-06 | |||
| US5258962A | 1993-11-02 | |||
| US5988645A | 1999-11-23 |
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