Patent ID: 9071763
Filing Date: 2015-06-30
Classification: G03B,H04N

Abstract:
1. A method comprising: selecting a range of distances from an image capture device, wherein the image capture device comprises a light source and a light sensing array; determining a pulse length based on the range of distances; causing the light source to generate a light pulse with the pulse length, wherein the pulse length defines a beginning of the light pulse and an end of the light pulse, wherein the light pulse has a modulated decay that is substantially linear such that the light pulse has an intensity that decays from a maximum at the beginning of the light pulse to zero at the end of the light pulse, wherein the light pulse reflects from an object located at an object distance within the range of distances to provide a reflected light pulse; and using the light sensing array to sense an integrated intensity of the reflected light pulse during an exposure time, wherein the exposure time is controlled based on the range of distances and the modulated decay such that the integrated intensity of the reflected light pulse is substantially independent of the object distance.