Patent ID: 7583363
Filing Date: 2009-09-01
Classification: G01C,G01S,H04N

Abstract:
1. A range finder system for calculating a distance X, comprising: a point light source configured to emit light; a first image pickup device comprising a first lens and a first sensor disposed corresponding to the first lens, the first lens having a first focal length F a second image pickup device spaced apart from the first image pickup device a predetermined distance L, the second image pickup device comprising a second lens and a second sensor disposed corresponding to the second lens, the second lens having a second focal length F a processing device electronically coupled to the first image pickup device and the second image pickup device, the processing device configured for calculating a first distance D where θ 1 is a complementary angle for an angle of θ 3 , the tangent of which is the ratio of D 1 to F 1 , and θ 2 is a complementary angle for an angle of θ 4 , the tangent of which is the ratio of D 2 to F 2 .