Double-notch filters for electronic devices are provided that filter light from both the blue spectrum as well as the red spectrum in narrow wavelength bands, or notches. A double-notch filter can, using input light from a conventional LED-backlit LCD display, output light that can be measured as substantially satisfying criteria for a D65 white point. In some examples, a double-notch filter can output light that can be measured as nearly satisfying criteria for a D65 white point, to within +/500 Kelvin. In some examples, a double-notch filter can output light that can be measured as nearly satisfying criteria for a D65 white point, to within +/1000 Kelvin.

A semiconductor device that utilizes intraband photon absorption in quantum dots to provide a capacitive photodetector. The presence of the quantum dots creates confined energy states within the photodetector device. Electrons are trapped in these confined energy states. When the photodetector is illuminated by light having an appropriate photon energy, the stored electrons are released to the conduction band, causing a change in the capacitance of the photodetector. By measuring this change in capacitance, light incident on the photodetector can be detected and quantified.

A new technique for sensing optical cavity mode mismatch using a mode converter formed from a cylindrical lens mode converting telescope, radio frequency quadrant photodiodes (RFQPDs), and a heterodyne detection scheme. The telescope allows the conversion of the Laguerre-Gauss basis to the Hermite-Gauss (HG) basis, which can be measured with quadrant photodiodes. Conversion to the HG basis is performed optically, measurement of mode mismatched signals is performed with the RFQPDs, and a feedback error signal is obtained with heterodyne detection.

The present invention relates to a radiation detector, in particular a direct conversion radiation detector. To provide for simple distribution of provided high voltage the radiation detector comprises a plurality of detector modules (10, 20) arranged adjacent to each other. Each detector module comprises a sensor layer (14, 24) for converting incident radiation (100) into electrical charges, a first electrode (15, 25) deposited on a first surface of the sensor layer facing the incident radiation (100), a second electrode (16, 26) deposited on a second surface of the sensor layer opposite the first surface, a readout electronics (12, 22) in electrical contact with the second electrode, and a carrier (13, 23) for carrying the sensor layer and the readout electronics. The radiation detector further comprises an electrically conductive conduction layer (30, 32, 50) and an anti-scatter arrangement (40), which are arranged on top of each other and cover the plurality of detector modules on the side facing the incident radiation (100).

Embodiments of the present disclosure disclose an ambient light acquisition method, an ambient light acquisition device, and an ambient light analysis method. An ambient light acquisition method includes acquiring an ambient light parameter of a target area, converting the ambient light parameter into a protocol type parameter in accordance with a predetermined wired communication protocol; and transmitting the protocol type parameter to an ambient light analysis device through a wired communication route corresponding to the predetermined wired communication protocol.

Embodiments of the present disclosure disclose an ambient light acquisition method, an ambient light acquisition device, and an ambient light analysis method. An ambient light acquisition method includes acquiring an ambient light parameter of a target area, converting the ambient light parameter into a protocol type parameter in accordance with a predetermined wired communication protocol; and transmitting the protocol type parameter to an ambient light analysis device through a wired communication route corresponding to the predetermined wired communication protocol.

A sunlight focusing analysis device relating to an analysis and verification device for a potential failure mode of a vehicle lamp projection unit, and a method for using same, and in particular to the analysis and verification of ablation of peripheral parts of a lens caused by focal spots formed by sunlight focused via a vehicle lamp lens. The device comprises a base, a lens holder, and a test piece holder. A horizontal rotary table and an inclination angle adjustment mechanism are provided on the base; the inclination angle adjustment mechanism is formed by a fixed support arm and a vertical swing arm connected to each other; the lens holder is fixed on the vertical swing arm; the test piece holder is mounted on a test piece lifting platform below the lens holder.

A void-arranged structure that includes a pair of principal surfaces opposing each other and a plurality of void sections that penetrate through the pair of principal surfaces. The void-arranged structure is configured of a plurality of unit structures each of which includes a first void section and a second void section having a different shape from a shape of the first void section, and the overall shape of the unit structure, when the principal surface is viewed from above, is not mirror-symmetric with respect to a predetermined imaginary plane orthogonal to the principal surface of the void-arranged structure.

A protector to protect a photon detector includes: a pulse rate comparator and a latcher, wherein the latcher latches to a set signal from the pulse rate comparator and protects the photon detector from detecting photons when the latch signal includes a latch protect level.

A method of determining outdoor characteristics of a photochromic optical article includes: determining environmental conditions for an area; positioning the optical article to face a first direction; determining a first incident irradiance on the optical article; determining a first surface temperature and first spectrum of the optical article; rotating the optical article to face a second direction; determining a second surface temperature and Full Characterization of Lens second spectrum of the optical article; determining a second incident irradiance on the optical article; and generating a prediction model of spectral transmission of the optical article. Further using environmental and climate conditions and to select a photochromic article most appropriate for an area.