Abstract:
According to an example, a first mirror layer may be formed on a substrate. A first set of spacer layers may be deposited on the first mirror layer to be positioned above a first group of the sensing elements and a second set of spacer layers may be deposited on the first mirror layer to be positioned above a second group of the sensing elements, in which the second set of spacer layers differs from the first set. In addition, a second mirror layer may be formed above the deposited first set of spacer layers and the deposited second set of spacer layers.
Abstract:
The invention provides a high resolution, wide dynamic range, multi-colour detection platform for microfluidic analysers/instruments and methods. The detection platform uses multiple high gain semiconductor optical sensors for the detection of luminescence from cellular or biological samples. The digitized outputs from these sensors are combined and weighted in a signal processing unit, using pre-determined algorithms for each colour, which optimise the resolution in each of these high gain semiconductor optical sensors while extending the dynamic range of the detection platform.
Abstract:
System and methods for accurate measurement and real-time feedback of solar ultraviolet exposure for management of ultraviolet dose. The systems can include a wearable device and a mobile device, the system performing accurate measurement of UV exposure.
Abstract:
An embodiment of a method for processing light sensor signals comprises illuminating a clear sensor (CS) and a color sensor (RS, GS, BS) of a light sensor system with a test light having a test spectrum. Therein the color sensor (RS, GS, BS) comprises an optical filter and is designed to sense light with a wavelength within a pass band of the filter and the test spectrum has components outside of the pass band. A clear test signal which is generated by the clear sensor (CS) and a color test signal which is generated by the color sensor (RS, GS, BS) are received. Then a first transmission value (T) is determined based on the clear test signal and on the color test signal. Finally, a compensation factor (Kr, Kg, Kb) is calculated based on the first transmission value (T) and on a nominal transmission value (Tn) of the filter.
Abstract:
A light sensor arrangement comprising a stack having a light sensor (1), an optical filter (3), and a mask (2) between the light sensor (1) and the optical filter (3). In particular, the light sensor (1) comprises a light sensitive surface (11). The mask (2) comprises an upper opaque base (M3) facing away from the light sensitive surface (11) and having first apertures (AM3) each confining an optical path in the mask (2), respectively. The mask (2) further comprises a lower opaque base (M1) facing the light sensitive surface (11) and having second apertures (AM1), each confining the optical path in the mask (2), respectively. The upper and lower base (M1, M3) are made from metal. The optical paths are designed for allowing incident light to reach the light sensitive surface (11) when having an angle of incidence from an allowed interval of angles (INT) determined by the size of the first and second apertures (AM1, AM3) and defined with respect to an optical axis (OA) of the optical paths, respectively. A spectrometer is shown comprising at least light sensor arrangements of the afore-mentioned kind.