Method of controlling printing process using a spectral measuring system comprising spatial light modulator

摘要

a measuring system for the photoelectric scanning of a measuring part includes a beleuchtungskanal (21 to 24) of the waste water in a messebene (mp) and part (m) and a beleuchtungslicht messkanal (11 to 13) for absorbing and the photoelectric conversion of the v on the measurement of the part m reflected messlichts.the beleuchtungskanal and / or messkanal is trained, the possible exception of bathing areas in several wellenlu00e4ngenbu00e4ndern to capture.the beleuchtungskanal (21 - 24) is an electronic control unit (40) controlled spatialen lichtmodulator (23) to produce a spatial beleuchtungsmusters on which the selective water of interest areas (25) of the part (m) with lighting slicht effect.the control unit (40) is bildverarbeitungsfunktionalitu00e4ten equipped and trained from image data of the part (m) for the use of appropriate sampling points (25) to locate and corresponding beleuchtungsmuster for selective illumination of the areas to be calculated.alternatively, the control unit (40) beleuchtungsmuster by positional data of relevant areas (25) calculate and the spatialen lichtmodulator (23) for the production of the calculated beleuchtungsmuster alone.the messkanal has an imaging experimental off-line scanner used (11) of the analyzed component (m), which generates image data of the part experimental off-line scanner used and the control unit (40) for the calculation of beleuchtungsmustern provides.;the spatial intensitu00e4tsmu00e4ssig modulated beleuchtungsmuster allow an optical isolation of the relevant areas and by elimination of optical u00fcbersprecheffekten. in this way, the measurement system for precise spectral measurement of very small, within the part suitable for distributed measurement.