Patent ID: 6466352
Filing Date: 2002-10-15
Classification: G02B

Abstract:
A scan system for writing, plotting, engraving, printing, and photolithography, comprising:(a) at least one rotatable radiation source having a rotational axis, (b) a rotatable scan device having at least one reflecting facet, (c) a rotatable medium support, (d) a rotatable optical system including at least one optical component having an optical aperture and selected from the group consisting of lenses and reflecting elements, said rotatable optical system being mounted upon rotatable said medium support and (e) a moveable and rotatable body having a region, (f) said rotatable radiation source being arranged to emit and direct at least one radiation beam, (g) said rotatable scan device rotating at first angular velocity about said rotational axis and being arranged to receiving said one radiation beam from said one rotatable radiation source and for reflecting said one radiation beam as at least one rotating scan beam, and for causing said one rotating scan beam to rotate at second angular velocity about said rotational axis of said rotatable scan device, (h) said rotatable medium support being arranged to rotate at a third angular velocity about said rotational axis of said rotatable scan device for carrying said rotatable optical system, (i) said first, second and third angular velocities arranged to cause said one optical component of said rotatable optical system to receive from said rotatable scan device said one rotating scan beam and to cause said one rotating scan beam to be directed into said optical aperture of said one optical element of said rotatable optical system to form at least one focused radiation spot, and for moving said one focused radiation spot over said rotatable and moveable region so that it will move over a scan range on said region, and (j) said rotatable optical system, said rotatable and moveable region on said body, and said one rotatable radiation source being positioned so that they are spaced from said rotational axis and are spaced from each other.