Abstract: A camera system with a multispectral sensor that can be used in combination with a flash to determine a spectrum of the ambient illumination without needing a separate measurement. This may then be used to colour-correct an image captured with or without flash.

Abstract: An integrated radiation sensor is disclosed. The integrated radiation sensor comprises a first optical filter associated with a first radiation-sensing element and a second optical filter associated with a second radiation-sensing element. The first optical filter is configured to pass radiation to the first radiation-sensing element with wavelengths within a UV-C range. The second optical filter is configured to pass radiation to the second radiation-sensing element with wavelengths longer than wavelengths within the UV-C range. Also disclosed is a method of manufacturing the integrated radiation sensor and methods of use of the integrated radiation sensor.

Abstract: A monolithic semiconductor chip defines a plurality of subarrays of optical detector regions, wherein each subarray of optical detector regions includes a corresponding plurality of optical detector regions and wherein each subarray of optical detector regions has the same relative spatial arrangement of optical detector regions as each of the other subarrays of optical detector regions.

Abstract: An integrated radiation sensor for color matching functions comprises a plurality of color matching channels, each color matching channel comprising a radiation sensing element and an associated optical filter defining a spectral sensitivity profile corresponding to a color matching function. The sensors comprise a plurality of compensation channels, each compensation channel comprising a radiation sensing element and an associated optical filter defining a spectral sensitivity profile for use in compensating a color sensed by the color matching channels.

Abstract: A sensor package includes a semiconductor sensor chip having multiple light sensitive regions each of which defines a respective light sensitive channel. An optical filter structure is disposed over the sensor chip and includes filters defining respective spectral functions for different ones of the light sensitive channels. In particular, the optical filter structure includes at least three optical filters defining spectral functions for tristimulus detection by a first subset of the light sensitive channels, and at least one additional optical filter defining a spectral function for spectral detection by a second subset of the light sensitive channels encompassing a wavelength range that differs from that of the first subset of light sensitive channels.

Abstract: An integrated radiation sensor is disclosed. The integrated radiation sensor comprises a first optical filter associated with a first radiation-sensing element and a second optical filter associated with a second radiation-sensing element. The first optical filter is configured to pass radiation to the first radiation-sensing element with wavelengths within a UV-C range. The second optical filter is configured to pass radiation to the second radiation-sensing element with wavelengths longer than wavelengths within the UV-C range. Also disclosed is a method of manufacturing the integrated radiation sensor and methods of use of the integrated radiation sensor.

Abstract: An image-sensing device is disclosed, the image-sensing device comprising a multispectral sensor and a processor communicably coupled to the multispectral sensor. The processor is configured to determine an ambient light source classification based on a comparison of predefined spectral data to data corresponding to an output of the multispectral sensor. Also disclosed is a method of classifying an ambient light source by sensing a spectrum of light with a multispectral sensor; and determining an ambient light source classification based on a comparison of predefined spectral data to data corresponding to an output of the multispectral sensor. An associated computer program, computer-readable medium and data processing apparatus are also disclosed.

Abstract: A camera system with a multispectral sensor that can be used in combination with a flash to determine a spectrum of the ambient illumination without needing a separate measurement. This may then be used to colour-correct an image captured with or without flash.

Abstract: A phosphor-converted light-emitting device comprising an emitter device configured to emit a spectrum of electromagnetic radiation, a conversion layer comprising at least one phosphor, the conversion layer being configured to convert electromagnetic radiation of the spectrum into electromagnetic radiation of a different further spectrum, and a blocking layer configured to attenuate electromagnetic radiation outside the further spectrum, the conversion layer being arranged between the emitter device and the blocking layer.

Abstract: The present disclosure describes a method and apparatus that uses spectral reconstruction of detector sensitivity to solve the above and other problems. Specifically, light sources (e.g., of visible light, infrared light and/or ultraviolet light) may target the sensor and emit, in sequence, beams of different wavelength. Spectral output of multiple channels of the sensor is received, the output including intensity (e.g., peak intensity) for each channel. The output is compared with reference intensities for each of the light sources and difference values are calculated. Based on the difference values, a calibration matrix is calculated that can be used in calibrating the specific sensor. In addition, the present disclosure describes an apparatus that includes a plurality of light sources, a receiver for receiving sensor output, and circuitry configured to generate a calibration matrix using the light sources, the receiver using spectral reconstruction of detector sensitivity.

Abstract: Disclosed are methods and devices for calibration in the field of optical sensors, e.g. characterizing and calibrating an optical sensor chip. In order to address complexity of sensor data with high accuracy the optical sensor, e.g. an optical sensor is not provided as an already calibrated unit. Rather, sensor response data may be recorded in a defined or standardized environment, e.g. at a production line, and with high precision. This high standard sensor response data can be obtained on a per device basis and, thus, is referenced with an unambiguous chip identification number, chip ID. The sensor data is complemented with a dedicated calibration algorithm which can be tailor-made to fit the optical sensor or the optical sensor chip. In order to retrieve the sensor response data and the calibration algorithm both can be made available by means of the chip ID, for example.

Abstract: A sensor package includes a semiconductor sensor chip having multiple light sensitive regions each of which defines a respective light sensitive channel. An optical filter structure is disposed over the sensor chip and includes filters defining respective spectral functions for different ones of the light sensitive channels. In particular, the optical filter structure includes at least three optical filters defining spectral functions for tristimulus detection by a first subset of the light sensitive channels, and at least one additional optical filter defining a spectral function for spectral detection by a second subset of the light sensitive channels encompassing a wavelength range that differs from that of the first subset of light sensitive channels.

Abstract: A phosphor-converted light-emitting device comprising an emitter device configured to emit a spectrum of electromagnetic radiation, a conversion layer comprising at least one phosphor, the conversion layer being configured to convert electromagnetic radiation of the spectrum into electromagnetic radiation of a different further spectrum, and a blocking layer configured to attenuate electromagnetic radiation outside the further spectrum, the conversion layer being arranged between the emitter device and the blocking layer.