Color temperature in a space may be adjusted by controlling one or more lighting control devices (e.g., which control one or more lighting fixtures). Light may enter the space through a window. As a result of daylight control devices associated with the window, the color temperature of light that is entering the space may not be equal to a color temperature of light from outside of the space. A desired color temperature for the space may be input. The color temperature of light emitted by one or more lighting fixtures (e.g., controlled by one or more lighting control devices) may be adjusted to attain the desired color temperature.

Color temperature in a space may be adjusted by controlling one or more lighting control devices (e.g., which control one or more lighting fixtures). Light may enter the space through a window. As a result of daylight control devices associated with the window, the color temperature of light that is entering the space may not be equal to a color temperature of light from outside of the space. A desired color temperature for the space may be input. The color temperature of light emitted by one or more lighting fixtures (e.g., controlled by one or more lighting control devices) may be adjusted to attain the desired color temperature.

A device for estimating an outer surface temperature of a radiant coil which is provided in an cracking furnace for ethylene production including a convection coil that preheats hydrocarbons as raw materials and steam, a radiant coil that thermally decomposes the preheated hydrocarbons and steam, and a housing for accommodating them, and which includes an imaging camera that images a region to be imaged of the radiant coil, and an image analyzer that processes an output signal from the imaging camera and estimates an outer surface temperature of the radiant coil.

A method for thermally-sensitive coating analysis of a component includes imaging the coated, exposed component over a range of distinct frequencies as selected by a narrowband variable filter; estimating parameters of non-uniformity correction (NUC) for every pixel at every wavelength; constructing a 2D temperature map on a pixel-by-pixel basis using the non-uniformity correction; and mapping the 2D temperature map to a 3D computer aided design (CAD) model.

A method for thermally-sensitive coating analysis of a component includes imaging the coated, exposed component over a range of distinct frequencies as selected by a narrowband variable filter; estimating parameters of non-uniformity correction (NUC) for every pixel at every wavelength; constructing a 2D temperature map on a pixel-by-pixel basis using the non-uniformity correction; and mapping the 2D temperature map to a 3D computer aided design (CAD) model.

An infrared camera captures a subject to generate a thermal image thereof. A distance sensor detects distances from an information processing apparatus to points on the subject. A storage device stores a temperature-to-color conversion table indicative of correspondences between temperatures and pixel colors. A control device processes the thermal image based on the conversion table, to display the processed thermal image on a display device. The control device identifies a region of interest within a range of a predetermined distance from a reference point of the subject based on the distances detected by the distance sensor, sets lower and upper limits of a temperature range based on temperatures of points within the region of interest, updates the conversion table based on the lower and upper limits, and regenerates the thermal image based on the updated conversion table, to display the regenerated thermal image on the display device.

A cold stage actuation system employs an optical assembly having an adapter ring mounted to a flange connected to a cold finger which extends into a Dewar housing. The flange supports a detector array. A resilient cold shield extends from the adapter ring to a lens holder, the lens holder connected to the resilient cold shield distal from the adapter ring. The lens holder supports a lenslet array. An optical light shield extends from the lens holder oppositely from the resilient cold shield to proximate a window in the Dewar housing. A motor is supported within the Dewar housing. An insulating translation arm connects the motor to the optical light shield, whereby operation of the motor induces the insulating translation arm to extend or retract the optical assembly concentric with an optical axis.

A background subtracted spectrometer for airborne infrared radiometry. The background subtracted spectrometer may comprise: a filter array, a detector, and a dewar containing liquid nitrogen. The filter array may be configured to selectively pass different spectral bands of infrared radiation. The filter array may comprise: at least one linear variable filter and a plurality of bandpass filters. The detector may comprise a focal plane array configured to receive the different spectral bands of infrared radiation simultaneously transmitted through the filter array. The detector may generate one or more electrical signals indicative of infrared radiation intensity as a function of wavelength. The filter array may be coupled to the focal plane array of the detector, and the filter array and detector may be conductively cooled by the liquid nitrogen to improve signal-to-noise ratio and spectral measurements. The background subtracted spectrometer preferably lacks a circular variable filter and relay lens.

Under-display sensor disclosed. The under-display sensor includes a light selection layer, having a first optical path and a second optical path through which a display circularly-polarized light generated by an ambient light and an unpolarized light generated by a pixel pass, and an optical sensor, having a first receiver configured for measuring light that has passed the first optical path and a second receiver configured for measuring light that has passed the second optical path, wherein the first optical path passes all of the display circularly-polarized light and the unpolarized light, wherein the second optical path blocks the display circularly-polarized light and passes the unpolarized light.

A multi-spectral temperature measuring device based on adaptive emissivity model and temperature measuring method thereof are provided, which is configured to measure the temperature of the surface of an object under a high temperature background. The present invention relates to the technical field of radiation temperature measurement. The present invention provides a multi-spectral temperature measurement device based on an adaptive emissivity model, includes a pyrometer, a radiation detector, a constant temperature furnace, a cooling cavity, a cold air inlet pipe, a cold air outlet tube, and a thermocouple and thermocouple acquisition card. In order to more accurately measure the surface temperature of the object in a high-temperature environment, a BP network is provided to adaptively find the emissivity model, and through pre-training the network, the network has a high degree of recognition, and then classifies the spectral curve to accurately output the corresponding emissivity model.