| 摘要 |
An apparatus and method of printing images onto a photosensitive media ( 140 ) using multiple reflective spatial light modulators ( 87, 88, 89, 90, 95, 97 ). In the apparatus and method, illumination optics uniformize and image light from at least one light source ( 20 ) through polarization beamsplitting elements ( 60, 63 ). The polarization beamsplitting elements ( 60, 63 ) divide the illumination light into two polarization states. One polarization state of the illumination light illuminates the reflective spatial light modulators ( 87, 88, 89, 90, 95, 97 ) in a telecentric manner. The reflective spatial light modulators ( 87, 88, 89, 90, 95, 97 ) are addressed with image data signals. The reflective spatial light modulators ( 87, 88, 89, 90, 95, 97 ) modulate the polarized illumination light on a site by site basis and reflect the modulated light back through the polarization beamsplitting elements. The modulated light beams are combined to form an image, which is directed through a print lens assembly ( 110 ) to expose a photosensitive media ( 140 ). The position of the spatial light modulators ( 87, 88, 89, 90, 95, 97 ) can be changed, and a new image can be printed.
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