A light sensor includes an integrated circuit chip and a boost DC/DC converter. The integrated circuit chip supports an array of pixels, each pixel including a SPAD. The boost DC/DC converter delivers to the SPADs a bias potential capable of placing the SPADs in Geiger mode. The boost DC/DC converter includes an inductive element, a first switch, a second switch, and a circuit for controlling on/off switching of the first switch. The inductive element and the first and second switches are arranged outside of the integrated circuit chip while the control circuit forms part of the integrated circuit chip.

A system and method for determining a filter clog. A method includes providing light to a fiber optic cable arranged on a filter, transmitting the light from the fiber optic cable, and detecting an intensity of the light. The method may include predicting a filter clog based on the detection of the intensity of the light; and providing an indication of the filter clog.

The present disclosure provides an optical imager and a method for imaging electromagnetic radiation. In one aspect, the optical imager includes an object array substantially located at an object plane, a first catadioptric element configured to substantially collimate, at a central plane, electromagnetic radiation emanating from the object array, a second catadioptric element configured to image the substantially collimated electromagnetic radiation from the central plane onto an image plane, and a detecting element substantially located at the image plane. The first catadioptric element includes at least one refractive surface and at least one reflective surface, and the second catadioptric element includes at least one refractive surface and at least one reflective surface.

The present disclosure relates to a method and device for detecting ambient light, an electronic device and a storage medium. The electronic device includes: a first screen, the first screen being a foldable flexible screen; multiple light sensors, orientations of light sensing surfaces of the multiple light sensors being different; and at least one processor electronically connected with the first screen and the light sensors respectively and configured to select a target light sensor from the multiple light sensors according to a present state of the first screen and obtain target detection data representing present ambient brightness according to detection data of the target light sensor.

An optical sensor includes a light emitter to emit light, a light receiver to receive the light emitted from the light emitter, a first resin body that covers the light emitter and the light receiver to transmit the light emitted from the light emitter to emit the light outside, and a second resin body that seals the light emitter and the light receiver, in which the second resin body is included inside the first resin body, and the second resin body is harder than the first resin body.

A sensor device having a sensor housing and a printed circuit board coupled to the sensor housing. A light emitting device is coupled to the printed circuit board. The light emitting device has an emitter face defining an emission face area. An aperture plate is coupled to the sensor housing, the aperture plate defines an aperture having an aperture area that is less than the emission face area of the emitter face. The aperture is less than 1 mm from the emitter face wherein the light emitting device is not fixed to the aperture plate. A lens is coupled to the sensor housing, having an optical axis extending through the aperture. The aperture plate is positioned between the lens and the emitter face. Boresighting angle variation across sensor components on a manufacturing line may advantageously be reduced without increased cost associated with active alignment. Irradiance drop-out may also be reduced.

A security light having optional connection to multiple power supplies. The lighting controller can sense the appropriate connected supply and automatically connect to three different power supplies which include house voltage connection through a typical junction box, a remote solar charging station, and on-board batteries that can be used as a third backup power supply. Additional implementations include power outage detection and backup illumination along with low voltage power supply from a mounting structure.

A data output device is provided. The data output device includes a converter circuit configured to generate a conversion signal based on an output signal; a boosting circuit configured to generate a boosting signal based on the output signal; and an output circuit configured to generate the output signal based on an input signal and a feedback signal, the feedback signal being based on the conversion signal and the boosting signal.

Methods, systems, and apparatus, for a stray-light testing station. In one aspect, the stray-light testing station includes an illumination assembly including a spatially extended light source and one or more optical elements arranged to direct a beam of light from the spatially extended light source along an optical path to an optical receiver assembly including a lens receptacle configured to receive a lens module and position the lens module in the optical path downstream from the parabolic mirror so that the lens module focuses the beam of light from the spatially extended light source to an image plane, and a moveable frame supporting the optical receiver assembly including one or more adjustable alignment stages to position the optical receiver assembly relative to the illumination assembly such that the optical path of the illumination assembly is within a field of view of the optical receiver assembly.

According to the present disclosure an electronic device is disclosed comprising: a housing including a front surface, a rear surface facing the direction opposite to the front surface, and a side surface encompassing the space between the front surface and the rear surface; a display included in the housing and visible to the outside of the electronic device through the front surface; an optical sensor positioned between the display and the rear surface overlapping at least one region of the display when viewed from above the front surface, and including a light-emitting part and a light-receiving part; and a first partition positioned between the light-emitting part and the light-receiving part based on the electronic device having a first shape, and a second partition present between the light-emitting part and the light-receiving part based on the electronic device having a second shape transformed from the first shape, wherein a straight line connecting the light-emitting part and the light-receiving part is perpendicular to the direction in which the electronic device changes from the first shape to the second shape.