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Optical design schematic of a confocal imaging system that uses a DLP source to project a series of illumination strips that are synchronized to the rolling shutter of the CMOS sensor. Lens L1 is used to focus the DLP illumination onto the target, pellicle beamsplitter BS directs a portion of light return to the CMOS sensor, and lenses L2 and L3 adjust the image magnification and focus the image onto the sensor.
