Photocopying – Projection printing and copying cameras – Step and repeat
Reexamination Certificate
2007-08-07
2007-08-07
Mathews, Alan (Department: 2851)
Photocopying
Projection printing and copying cameras
Step and repeat
C355S071000
Reexamination Certificate
active
11251837
ABSTRACT:
An exposure apparatus for projecting, by exposure, a pattern of an original onto a substrate. The apparatus includes a light blocking device for blocking at least a portion of exposure light. The light blocking device includes two plate-like members which are disposed in a vertical direction with a clearance kept therebetween, and two plate-like members which are disposed in a horizontal direction with a clearance kept therebetween. The apparatus further includes a driving member for moving the light blocking device, wherein the driving member includes the stator, and a reaction force absorbing device for absorbing a drive reaction force of the driving member. The reaction force absorbing device absorbs the reaction force by moving the stator of the driving member.
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Meguro Takashi
Miyajima Yoshikazu
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