Patent ID: 7439998

Claim:
An optical recording apparatus comprising: a plurality of laser modules, each laser module comprising: a light source that generates a laser beam; and an optical fiber having an incident face and an output face, the optical fiber being arranged to receive the laser beam at the incident face, an optical fiber array unit that bundles a plurality of optical fibers configuring the plurality of laser modules to form an optical fiber array wherein the plurality of optical fibers is arranged to have an array of output faces arranged at a constant pitch; a photosensitive member having a photosensitive surface; and an optical system that scans laser beams outputted from the array of output faces of the optical fiber array in a first direction on the photosensitive surface, the laser beams forming dots aligned in a second direction to form an angle with respect to the first direction, wherein a relationship of 2ω F >2ω D (P F /P D )sin[tan −1 (2m·Δθ)] is established, where 2ω F is a mode field diameter of the laser beams outputted from the optical fiber array, 2ω D is a spot diameter of the laser beams on the scanning surface, P F is a pitch of the output faces of the optical fibers, P D is a pitch of scan lines on the scanning surface, m is the number of the laser beams, and Δθ is adjusting resolution for the angle of the array of the laser beams on the scanning surface.