Patent ID: 6456315
Filing Date: 2002-09-24
Classification: G02B,H04N

Abstract:
An internal-surface-scanning image recording apparatus for applying a modulated light beam to a recording medium to record an image thereon, comprising:a semicylindrical member for supporting the recording medium on an inner circumferential surface thereof; a light source for emitting the light beam; a polarization beam splitter rotatable about a central axis of said semicylindrical member, for reflecting a first polarized light beam emitted from said light source toward the recording medium and transmitting a second polarized light beam whose direction of polarization is perpendicular to the direction of polarization of said first polarized light beam; polarized light guiding means for guiding the second polarized light beam transmitted through said polarization beam splitter toward the recording medium without passing back to said polarized beam splitter; and polarization control means for controlling the direction of polarization of said light beam depending on an angular displacement of said polarization beam splitter.