Abstract: The present disclosure relates to a device and method for measuring a flicker frequency of a light source configured to implement at least one phase lock loop.

Abstract: The present disclosure relates to a method for sanitization of a surface by emission of a plurality of sanitization wavelengths, and to a device for implementing the method. The method comprises emitting light using first LEDs configured to emit the sanitization wavelengths, receiving, by a circuit, a feedback signal from a light sensor indicating a light intensity received by the light sensor during the light emission, and controlling the first LEDs with the circuit based on the feedback signal.

Abstract: The present disclosure relates to an assembly for an electronic device comprising: a display screen; an optical light emitter adapted to emit an Infrared or near Infrared light beam through the display screen; the optical light emitter and the display screen being of the type that, when an unpolarized light beam from the optical light emitter passes through a region of the display screen, a white spot of a first intensity is formed in the region; a light polarizer positioned between the optical light emitter and the display screen, the light polarizer being orientated such that a white spot of a second intensity, lower than the first intensity, is formed when the light beam, from the optical light emitter and polarized by the light polarizer, passes through the region of the display screen.

Abstract: The present disclosure relates to a light sensor comprising: an optical device comprising a first face configured to receive light and a second face, the device being configured, when the first face receives the light at a first wavelength between 1100 nm and 1600 nm, to convert the received light to the light at a second wavelength between 600 nm and 1000 nm, and to emit the light at the second wavelength through the second face; and at least one pixel having a silicon photoconversion area arranged opposite the second face of the optical device.

Abstract: The present disclosure relates to a device and method for measuring a flicker frequency of a light source configured to implement at least one phase lock loop.