Abstract:
An image capturing apparatus including a cover plate, a light source, a sensor, and a collimator is provided. The light source and the sensor are located on the same side of the cover plate. The collimator is disposed between the cover plate and the sensor, and the collimator includes collimating elements overlapping with each other. Each collimating element includes a transparent substrate and a light absorbing layer disposed on the transparent substrate. The light absorbing layer includes a plurality of light passing openings. The light passing openings expose sensing areas of the sensor. Spacing between the light passing openings is S. A width of each light passing opening is W, and W
Abstract:
Automated dynamic devices, systems, and methods for identifying and commissioning lighting systems are disclosed. In particular, sensor systems are configured to read barcodes for identifying luminaires in a lighting system, and lumen levels of the luminaires are adjustable to provide appropriate lighting for the sensors to read the barcodes. The sensors may also be attached to sensor clips that allow sensors to be positioned in a variety of locations and orientations on different luminaires.
Abstract:
An optical sensor includes a substrate having a plurality of first light receiving elements in a surface, and a light blocking film having a plurality of first openings. The first light receiving elements are provided such that a direction of travel of incident light defined by each of the first openings is different from a thickness direction of the substrate and form at least one light receiving element set in which an angle of incidence defined between the direction of travel of the incident light and the thickness direction is the same with respect to the light receiving elements. In a view projected in the thickness direction, a positional relationship between the first light receiving elements included in a light receiving element set and the corresponding first openings has rotational symmetry of order 3 or more about an axis along the thickness direction.
Abstract:
Instruments and methods are disclosed which measure absolute energy and irradiance of UV light sources. The response curves of exemplary optical stacks of the radiometry instruments are substantially rectangular with steep transitions at the cutoff frequencies. Angle of incidence (AOI) control in combination with one or more interference filters in the optical stack enable the full optical stack to produce repeatable and accurate measurements. Inverse response filters are disclosed for leveling optical stack response.
Abstract:
An inspection apparatus includes a light emitting unit, a first lens, an aperture unit, a second lens, a light receiving unit, and an inspection unit. The light emitting unit emits irradiation light to an object to be inspected. The first lens changes a divergence level of the irradiation light which is emitted from the light emitting unit and is transmitted through the first lens. The aperture unit has an opening which narrows the irradiation light transmitted through the first lens. The second lens condenses the irradiation light passing through the opening, toward the object. The light receiving unit is disposed between the aperture unit and the second lens. The light receiving unit includes plural light receiving elements which receives reflected light obtained by the irradiation light being emitted to the object and then being transmitted through the second lens.
Abstract:
An image sensor includes a substrate including photoelectric conversion elements for a plurality of unit pixels, which are two-dimensionally arranged in a pixel array; a light transmission member on the substrate; a grid structure in the light transmission member and having multiple layers; and a light collection member on the light transmission member, wherein the grid structure is tilted for respective chief ray angles of the plurality of unit pixels according to locations of the plurality of unit pixels in the pixel array.
Abstract:
An infrared detector system is provided for detecting infrared radiation from an infrared radiation source or a scene. The system includes a first area that is semiconductor-based and biased to produce negative luminescence, the first area including at least one semiconductor-based detector. The detector system further includes at least one additional area being semiconductor-based and biased to produce negative luminescence. A low-emissivity specular retro-reflector shield is configured to reflect infrared radiation and covers the first area and the at least one additional area. The shield defines an aperture to allow the at least one semiconductor-based detector to receive incident rays of the infrared radiation from the infrared radiation source or the scene via a low-scatter, low-emission optical system such that the radiation incident from the infrared radiation source or scene substantially fills the solid angle defined by the aperture at any point in the first area.
Abstract:
A light sensor arrangement comprising a stack having a light sensor, an optical filter, and a mask between the light sensor and the optical filter. In particular, the light sensor comprises a light sensitive surface. The mask comprises an upper opaque base facing away from the light sensitive surface and having first apertures each confining an optical path in the mask, respectively. The mask further comprises a lower opaque base facing the light sensitive surface and having second apertures, each confining the optical path in the mask, respectively. The upper and lower base are made from metal. The optical paths are designed for allowing incident light to reach the light sensitive surface when having an angle of incidence from an allowed interval of angles determined by the size of the first and second apertures and defined with respect to an optical axis of the optical paths, respectively. A spectrometer is shown comprising at least light sensor arrangements of the aforementioned kind.
Abstract:
A light detection system may include a light detecting assembly including a plurality of light detectors. Each light detector may include a substrate, a mirror coupled to the substrate, and a light-receiving tube coupled to the substrate. The light-receiving tube may include a sensor positioned at a first end, a light-transmissive opening at a second end that is opposite from the first end, and a plurality of partitions that are configured to block transmission of light energy. A central light path extends through the light-receiving tube. The system may also include a control unit in communication with the light detecting assembly. The control unit is configured to determine one or more of a direction of light emitted from a light source, a position of the light source, or an intensity of light emitted from the light source based on one or more light detection signals received from the light detecting assembly.
Abstract:
A window shading control system (100) includes a sensor (110) configured to produce a global radiation measurement for each direction of at least four directions, wherein each global radiation measurement is a combined direct and diffuse component of at least one of illuminance and irradiance; a processor (120) connected to the sensor and configured to compute a discrete direct component and a diffuse component for global radiation measurement; and a control circuit (130) connected to the processor and configured to control a window shading system (150) based on the discrete direct component and the diffuse component computed for at least one global radiation measurement.