US 12,467,826 B2
System and method for calibrating the light sensitivity of a camera
Jason S. Damazo, Seattle, WA (US); Dejan Nikic, Seattle, WA (US); Dominic Martinez, Shoreline, WA (US); Shahriar Khosravani, Everett, WA (US); and Philipp Andreas Boettcher, Golden, CO (US)
Assigned to The Boeing Company, Arlington, VA (US)
Filed by The Boeing Company, Arlington, VA (US)
Filed on Apr. 19, 2023, as Appl. No. 18/302,893.
Prior Publication US 2024/0353290 A1, Oct. 24, 2024
Int. Cl. G01M 11/00 (2006.01); G01M 11/02 (2006.01)
CPC G01M 11/332 (2013.01) [G01M 11/0214 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A system for calibrating a light sensitivity of a camera, comprising:
a light emitter configured to emit a light pulse therefrom;
a fiber splitter having an input port, a first output port and a second output port, wherein the fiber splitter is configured to receive the light pulse via the input port and to provide a first portion of the light pulse to the first output port and a second portion of the light pulse to the second output port according to a splitting ratio, wherein the first portion is greater than or equal to the second portion;
a light collector comprising an integrating sphere configured to receive the first portion from the first output port and a photodetector operatively connected with the integrating sphere and configured to convert the first portion to a first signal that is representative of a light characteristic of the first portion;
a first fiber optic cable operatively connecting the light emitter and the input port;
a second fiber optic cable operatively connecting the first output port and the light collector; and
a third fiber optic cable having opposed first and second cable ends, wherein the first cable end is operatively connected with the second output port and the second cable end is configured for emitting the second portion of the light pulse therefrom across a predetermined distance for capture by the camera.