Micro-Epsilon color sensor series with new color space
The ColorSensor CFO250 color sensor series has been expanded to include the LCh color space. By using the LCh color space and the segment tolerance, the match with human color perception is increased by a further ten percentage points.
Due to their high accuracy and a measuring rate of up to 30 kHz, controllers from Micro-Epsilon's ColorSensor CFO250 series are primarily used in highly dynamic inline measurements - for example for 100% quality control in print mark detection or batch testing. The CFO250 was previously available in the color spaces XYZ, xyY, L*a*b*, L*u*v* and u'v'L*, and is now also available with LCh color space. Users benefit from a ten percent higher correspondence of color perception with human vision compared to the L*a*b* color space and therefore maximum color accuracy. The LCh color space is also very well suited for the intuitive display and editing of colors. The LCh color space consists of the components luminance (L), chroma (C) and hue (h). L stands for brightness (luminance) in a spectrum from 0 (black) to 100 (white), C for saturation (chroma) with a spectrum from 0 (less saturated) to 100 (highly saturated) and h for the hue from 0° to 360°, for example red, green or blue. When using the LCh color space and segment tolerance, color perception increases by ten percent compared to the L*a*b* color space.
Even more precise color recognition thanks to new color space
The ColorSensor CFO250 quickly and reliably compares the taught-in colors with the current measured value and evaluates them according to OK or NOK. In addition, the raw data can be transferred directly to a PLC or machine system at up to 500 Hz via a UDP, RS232 or USB interface. Corresponding edge or level triggers also control how long or how many measured values are output. The large color memory for different test batches offers a particular advantage. The controller is also ideally suited to harsh environments thanks to its robust aluminum housing and IP65 protection rating. It can be commissioned and calibrated quickly and easily via an easy-to-use web interface. The colors can also be taught in conveniently via the intuitive web interface. 254 color groups with more than 320 individual colors can be taught in the CFO Controller. The color groups are used to increase color accuracy, among other things.