📋 Tender Overview
Ams OSRAM SIX AMS a global leader in optical solutions has extended its broad portfolio of spectral sensors with the launch of the AS7343. It is the companys first product to combine multi-channel color analysis with XYZ sensor technology to measure the color and intensity of light as seen by the human eye. When integrated into colorimeters portable spectrometers and consumer devices the AS7343 gives added productivity flexibility and functionality to users in applications for color matching lighting control and spectral analysis.This new multi-purpose sensor is ideal for color analysis in applications which require frequent accurate measurements. For instance operators of greenhouses and indoor farms use color analysis to optimize the spectral characteristics of horticultural lighting and to maximize yield and energy efficiency. Different crops growth is stimulated by different parts of the visible light spectrum. The AS7343 provides fast and accurate spectral measurement of light incident on the crop. These results may be matched with the light requirements of each plant species. Lighting settings can be adjusted to produce illumination at the relevant parts of the spectrum as necessary explains Kevin Jensen Senior Marketing Manager in the Optical Sensors business unit at ams OSRAM.Compact chip performs precise spectral analysisThe 14-channel AS7343 is chip housed in a flat 3.1 mm x 2 mm x 1 mm package. It functions like a spectrometer measuring the spectral power distribution of a light source or reflected light. It features 12 equally spaced measurement channels in the visible light spectrum alongside a Near Infrared NIR channel and including the XYZ function. The difference from its predecessor the AS7341 is that the AS7343 combines a multi-channel spectral sensor with the XYZ technology. The XYZ channels are closely aligned to the CIE 1931 XYZ color space a standard model of the human eyes perception of color. The AS7343s ability to produce direct XYZ values known as color coordinates gives users the flexibility to choose whether to perform a full spectral analysis or a simpler color sweep.With the AS7343 the user can perform quick sweeps of color signatures of interest or measure in full resolution as needed. The sensors multi-channel capabilities also allow users to compensate the human eyes susceptibility to incorrect color matching called metamerism. This results in more accurate color reproduction says Kevin Jensen.The AS7343 creates a characteristic spectral signature of any light sources and reflected light. Up to six channels can be used simultaneously providing for more flexible use. The new product is up to four times more sensitive than its predecessor the AS7341 resulting in better balanced color perception across the spectrum and improved signal analysis. Automatic ADC reconfiguration also gives a faster multi-channel readout.Wide range of applicationsIn applications such as horticultural lighting a single sensor is usually sufficient providing a high-resolution measurement of the spectral power distribution. If even higher resolution is required filter response curves of two or more AS7343 devices can be configured to overlap reducing the bandwidth of each channel and increasing measurement resolution. This technique can also be used together with the AS7341. In addition the AS7343 sensor enables chromatographic analysis of liquids or materials supporting applications in horticulture such as the measurement of chlorophyll concentration in plants.Another application for the AS7343 is in smoke alarms and heat alarms for the detection of spectral smoke signatures. Spectral analysis by the AS7343 enables a smoke sensor to distingish between different types of smoke from burning wood to plastic or water vapor.
