US Patent No. 10,602,074

ADAPTIVE LIGHT SOURCE


Patent No. 10,602,074
Issue Date March 24, 2020
Title Adaptive Light Source
Inventorship Arjen Van Der Sijde, Aachen (DE)
Nicola Pfeffer, Aachen (DE)
Quint Van Voorst-Vader, Aachen (DE)
Yourii Martynov, Aachen (DE)
Assignee Lumileds Holding B.V., Schipol (NL)

Claim of US Patent No. 10,602,074

1. A method, comprising:capturing a first image of a scene under ambient lighting;
illuminating the scene with a first amount of light from a light source that includes an array of light emitting diodes (LEDs);
capturing a second image of the scene while illuminating the scene with the first amount of light;
for portions of the scene that correspond to individual LEDs in the array, determining a distance from the light source to each portion;
calculating a relative amount of light for each portion of the scene based on the first image, the second image, and the corresponding determined distance from the light source to the portion;
determining, from the calculated relative amounts of light, that a first portion of the scene and a second portion of the scene receive different amounts of light;
providing a first amount of current, based on the calculated relative amounts of light, to a first LED of the array of LEDs to illuminate the first portion of the scene;
providing a second amount of current, different from the first amount and based on the calculated relative amounts of light, to a second LED of the array of LEDs to illuminate the second portion of the scene; and
capturing a final image of the scene while illuminating the first portion of the scene with light from the first LED and illuminating the second portion of the scene with light from the second LED.