Back to results
US 12,399,109 B2Granted
Optical property measurement using a sensor behind a display screen
Assigneeams Sensors Germany GmbH
InventorGunter Siess
Life of this patent
Estimating the term…
Abstract
Optical property measurement using a sensor behind a display screen Examples of this application disclose a method for measuring optical properties of a target. The method comprises illuminating the target with an illumination area with a display screen in contact with the target, and analysing signals reflected from the target and transmitted back through the display screen to a sensor positioned behind the display screen, to determine the optical properties of the target.
Claims18
A method for measuring optical properties of a target comprising:
- providing a display screen;
- illuminating the target with an illumination area on the display screen, wherein the target is in contact with the display screen;
- providing a sensor positioned behind the display screen to receive light reflected from the target and transmitted back through the display screen;
- determining a change in scattered light by varying a size or shape of the illumination area;
- and
- determining a grade of translucency of the target based on the change in scattered light, wherein determining the grade of translucency is done by analysing signals from the sensor during illumination including comparing signals detected for a first varied illumination area to signals detected for a second varied illumination area.
3 more elements
Dependencies are inferred from the claim text.