US 7,496,293 B2
Versatile camera for various visibility conditions
Hanan Shamir, Haifa (Israel); and Yossi Yaeli, Haifa (Israel)
Assigned to Elbit Systems Ltd., Haifa (Israel)
Filed on Jul. 15, 2005, as Appl. No. 11/182,302.
Application 11/182302 is a continuation in part of application No. PCT/IL2004/000038, filed on Jan. 14, 2004.
Prior Publication US 2006/0291849 A1, Dec. 28, 2006
Int. Cl. G03B 41/00 (2006.01)
U.S. Cl. 396—333  [348/216; 348/262; 348/342] 44 Claims
OG exemplary drawing
 
1. Versatile camera for various visibility conditions, comprising:
at least two sensors for capturing images of a scene and providing a digital signal representation of said images;
an optical and routing module for receiving incoming rays from said scene and routing said incoming rays toward said at least two sensors, respectively; and
a processor for merging in registration and processing the images provided by said at least two sensors,
wherein at least one of said at least two sensors comprises a good visibility conditions sensor having low sensitivity and high resolution in a first wavelength range;
wherein at least another of said at least two sensors comprises a poor visibility conditions sensor having high sensitivity and low resolution in a second wavelength range at least partially overlapping said first wavelength range; and
wherein said optical and routing module directs, for the partially overlapping portion of said first wavelength range and said second wavelength range a small-portion of the light intensity of said incoming rays toward said good visibility conditions sensor, said optical and routing module further directing a large-portion of the light intensity of said incoming rays toward said poor visibility conditions sensor, and for the non-overlapping portion of said second wavelength range, said optical and routing module directs said incoming rays toward said poor visibility conditions sensor.