An optical sensing module has a light source and an optical sensing integrated circuit device. The optical sensing integrated circuit device has an optical sensor and a grating. The optical sensor and the light source are arranged along a first direction. The grating is formed over the optical sensor and has multiple parallel wires. The multiple wires are perpendicular to the first direction.

The optical sensor package comprises an optical sensor device with a sensor element arranged inside a housing comprising a cap. A diffuser is arranged in an aperture of the cap opposite the sensor element and prolongs the cap in the aperture or closes the aperture. The method comprises forming a cap with an aperture, arranging a diffusing material in the aperture, thus forming a diffuser, and after forming the diffuser, arranging an optical sensor device with a sensor element inside a housing that includes the cap, such that the sensor element is opposite the diffuser.

A method and apparatus for actively aligning an optical device are described. An apparatus includes an optical device. The optical device includes a supporting surface, a light source mounted to the supporting surface, a lens mount configured to hold a lens, a lens holder configured to hold the lens mount, wherein the lens mount is configured to be mounted to the supporting surface. A light detector is configured to determine a light intensity of a light beam through the lens, the light intensity indicating the alignment of the lens. An alignment device is to move the lens until the light intensity indicates that the lens is aligned, and a curing light is to cure adhesive layers between the lens and the lens mount, the lens mount and the lens holder, and the lens holder and the supporting surface.

The present invention relates to a radiation sensor, in particular for use with a vehicle sunload sensor arrangement. Furthermore, the present invention also relates to such a vehicle sensor arrangement and to a method of assembling a vehicle sensor arrangement. A radiation sensor comprises at least one first and one second photodetector, and a radiation shaping element, wherein said radiation shaping element comprises radiation blocking means for forming at least one aperture through which the radiation has limited access to said first and second photodetectors, and wherein said first and second photodetectors are arranged on a substrate and are distanced apart from each other along a sensor axis, and wherein the radiation blocking means is formed by a radiation screen mounted on the substrate to encompass the first and second photodetectors.

Methods and apparatus (100) for profiling a beam of a light emitting semiconductor device. The apparatus comprises a light emitting semiconductor device (102) comprising an active region (108) formed on a substrate (104) and configured to generate light when a suitable electrical current is applied to contacts on an upper surface of the device and a light emitting surface (110) defined by a lower surface of the substrate opposite the contacts. The apparatus further comprises a transmission medium (112) comprising a first surface (114) in contact with at least part of the light emitting surface of the semiconductor device and a diffusion surface (116), opposite the first surface, and configured to diffuse light emitted from the micro-LED and transmitted through the transmission medium.

To calculate a probability of an optical sensor's irregular discharge, a light detection system includes an optical sensor, an application voltage generating circuit that applies a drive pulse voltage to the optical sensor, a discharge determining portion that detects the optical sensor's discharge, a discharge probability calculating portion that calculates a discharge probability for each of first and second states in which the optical sensor is shielded from light and the drive pulse voltage's width in the second state is different from the first state, a sensitivity parameter storing portion storing the drive pulse voltage's reference pulse width as the optical sensor's sensitivity parameter, and another discharge probability calculating portion that calculates an irregular discharge's probability that occurs without depending on the optical sensor's received light quantity, based on the sensitivity parameter, and the discharge probabilities calculated and the drive pulse voltage's widths in the first and second states.

A radiation field measuring device for the characterization of a radiation comprises a detector device and a reconstruction device. The detector device may have at least one detector camera, which contains at least one detector array arranged for the image recording of scattered radiation in a multiplicity of lateral directions that deviate from the longitudinal direction. The reconstruction device may be configured for the tomographic reconstruction of a field density of the scattered radiation in the radiation field.

A method of measuring illumination of an environment may include capturing (e.g. via an RGB-D camera arrangement) images of an illuminated environment. The method may further include extracting from the image captured light emittance values as well as albedo values of surface areas (“patches”) across the environment. The method also includes computing illumination values of surface areas across the environment as a function of the emittance values and the albedo values.

A daylight sensor for automated window-shading applications that incorporates at least one (and optionally more than one) of three aspects: an optimized Field-of-View (FOV), angle-diversity sensing (via at least two sub-sensors with different FOVs, whose outputs are processed in a particular way to yield the overall sensor output), and multi-spectral sensing (via at least two sub-sensors with differing spectral responses and, optionally, different FOVs, whose outputs are processed in a particular way to yield the sensor output). These aspects improve the correlation between the sensor output and the subjectively-perceived daylight level (especially under glare-inducing conditions, such as in the presence of low-angle direct sunlight), thereby enabling more effective automatic control of daylight admitted into a room.

A 3D digital indoor localization system uses light emitting diode (LED) lighting infrastructures for localization. In one example approach, a light source includes a convex lens and an array of LEDs, all configured as a single LED lamp. The localization system exploits the light splitting properties of the convex lens to create a one-to-one mapping between a location and the set of orthogonal digital light signals received from particular LEDs of the LED lamp.