Multi-beam scanning apparatus
First Claim
1. A multi-beam scanning apparatus for use with a recording medium located on an at least partially cylindrical inner bearing face of a recording device, in which the bearing face has a cylinder axis, the scanning apparatus, comprising:
- a scanner unit for scanning the recording medium with at least one exposure beam;
said scanner unit including an acousto-optical element selected from the group consisting of an acousto-optical deflector and an acousto-optical modulator;
said scanner unit including a deflection element that is axially displaceable and rotatable relative to the cylinder axis of the bearing face; and
said acousto-optical element being mounted to rotate together with said deflection element about the cylinder axis.
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Accused Products
Abstract
A multi-beam scanning apparatus is provided for use with a recording medium that is located on an at least partially cylindrical inner bearing face of a recording device, in which the bearing face has a cylinder axis. The scanning apparatus includes a scanner unit for scanning the recording medium with at least one exposure beam. The scanner unit includes an acousto-optical element that is either an acousto-optical deflector or an acousto-optical modulator. The scanner unit includes a deflection element that is axially displaceable and rotatable relative to the cylinder axis of the bearing face. The acousto-optical element is mounted to rotate together with the deflection element about the cylinder axis.
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Citations
22 Claims
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1. A multi-beam scanning apparatus for use with a recording medium located on an at least partially cylindrical inner bearing face of a recording device, in which the bearing face has a cylinder axis, the scanning apparatus, comprising:
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a scanner unit for scanning the recording medium with at least one exposure beam;
said scanner unit including an acousto-optical element selected from the group consisting of an acousto-optical deflector and an acousto-optical modulator;
said scanner unit including a deflection element that is axially displaceable and rotatable relative to the cylinder axis of the bearing face; and
said acousto-optical element being mounted to rotate together with said deflection element about the cylinder axis. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. An internal-drum laser exposure device, comprising:
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a recording device having an at least partially cylindrical inner bearing face for a recording medium, the bearing face having a cylinder axis; and
a multi-beam scanning apparatus including;
a scanner unit for scanning the recording medium with at least one exposure beam, said scanner unit including an acousto-optical element selected from the group consisting of an acousto-optical deflector and an acousto-optical modulator, said scanner unit including a deflection element that is axially displaceable and rotatable relative to the cylinder axis of the bearing face, and said acousto-optical element being mounted to rotate together with said deflection element about the cylinder axis.
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Specification