www.microphotonics.com The CHR Sensor The CHR is a compact system that utilizes the optical principle of Chromatic Confocal Imaging. CHRs perform high precision non-contact measurements to 1 nm, depth of field to 27 mm.Benefits:- Measures height, thickness and intensity simultaneously - Interchangeable focusing lenses that accommodates different working distances and measurement rangesUsed as a stand alone system or integrated, CHRsensors are ideal for use in production or assembly line environments where measurements must beobtained quickly with repeatable results. They are equally appropriate in laboratory settings as a high precision tool for non-contact measure- ment studies. The Chromatic Confocal Imaging system is “blind”of all space except for the color-coded segment generated by axial chromatism. We call it the “single line” viewing system.For analyzing thespectral content of the light beam filtered by the pinhole, these sensors use a spec- trometer, comprised of a dispersive element and a line detector.The position of the spectral peak along the linedetector corresponds to the location of the sample inside the measuring range. Optical Principle Chromatic Confocal Imaging consists of introducing an optical element with axial chromatism in the setup of a confocal imaging system.For each wavelength the system behaves as a classi-cal confocal system, but the position of the focused point S’ depends on the wavelength.When the point source S is a polychromatic, thesystem generates a continuum of sharply focusedmonochromatic images S(

Easily measures challenging materials:·Textiles, polymers ·Black or dark blue materials ·High aspect ratio surfaces ·Materials of low reflectivity ë

i) corresponding to thespectral content of the point source.