Photocopying – Projection printing and copying cameras – Step and repeat
Reexamination Certificate
2008-07-15
2008-07-15
Rutledge, Della J. (Department: 2851)
Photocopying
Projection printing and copying cameras
Step and repeat
C355S067000, C355S071000, C359S290000, C359S618000, C359S642000, C359S663000
Reexamination Certificate
active
07400380
ABSTRACT:
A two-dimensional light-modulating fine aperture array apparatus includes a spatial light-modulating unit for adjusting quantity of incident light by using a plurality of light amount adjusting cells (liquid crystal cells or micromirrors) arrayed in matrix form, a two-dimensional microlens array having microlenses which focus light beams passing through the light quantity adjusting cells, and a highly efficient two-dimensional fine aperture array. The light is emitted through the fine apertures by connecting the two-dimensional light-modulating fine aperture array apparatus with a light source unit. A scanning unit moves in the x and y directions to perform a scanning process on a surface of a recording medium by using the light emitted from the apertures.
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Bacon & Thomas PLLC
Rutledge Della J.
Yonsei University
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