Abstract: A scanning optical apparatus includes a light emitting device for emitting a laser beam, a deflection device for deflecting the laser beam and a pair of imaging lenses for scanning a photosensitive member by the deflected laser beam. Each of the imaging lenses has an abutment reference plane so arranged that they are urged toward opposite directions to abut respectively on abutment reference sections formed inside an optical cabinet by an urging member disposed as bridging the imaging lenses.

Abstract: A scanning optical device includes a light source unit, a deflector for deflectively scanning a light beam from the light source unit, a photodetector, and a compound optical system. In the compound optical system, a first optical system for guiding the light beam from the light source unit toward the deflector, and a second optical system for guiding the light beam deflectively scanned by the deflector toward the photodetector are integrally formed. The compound optical system is so held as to be movable in a direction other than an optical axis direction of the first optical system.

Abstract: A synthetic resin lens for an optical system of a scanning optical system comprises a synthetic resin lens having a guide hole for an adhesive curing promoting light formed at a mount area thereof.

Abstract: A synthetic resin lens for an optical system of a scanning optical system includes a synthetic resin lens having a light guide hole for directing a light beam at a light curable adhesive formed at a mount area thereof.

Abstract: An information recording/reproducing apparatus, for recording and/or reproducing information on and/or from a recording medium, includes an opening formed in a front panel thereof to allow loading and unloading of the recording medium, a device for automatically transporting the recording medium in a transport direction along a transport path, from an unloading position to a loading position and from the loading position to the unloading position, and a member slidable in a direction opposite to the recording medium transport direction, associated with the loading and unloading operations of the recording medium. The member permits manual unloading of the recording medium when the member is pushed into the apparatus or pulled away from the front panel.

Abstract: An image recording/reproducing apparatus is designed to be loaded with a cartridge accommodating a recording medium such as an optical or magnetic disk. The cartridge has a shutter which is automatically opened when the cartridge is mounted on the apparatus so as to enable the recording/reproducing portion of the apparatus to access the recording medium for the purpose of recording and/or reproduction. The apparatus includes a mechanism for automatically opening and closing the shutter in response to inserting and ejecting the cartridge. The mechanism includes a pair of swingable levers or shutter arms arranged symmetrically with respect to a line along which the center of the cartridge is moved during insertion. The free end of one of the swingable levers is adapted to be engaged by an engaging portion provided on the shutter of the cartridge so as to urge the shutter in the opening direction when the cartridge is inserted.

Abstract: An optical information processing apparatus including a light source, a lens system for condensing the light beam emitted from the light source as a minute spot on the track of a recording medium, tracking signal detectors for receiving the light beam from the spot modulated by the recording medium to thereby detect the positional deviation of the spot relative to the track in the tracking direction crossing the track, a correcting device for moving the lens system in the tracking direction in response to the output signal from the tracking signal detectors to thereby correct the positional deviation, and lens position detectors including at least one photoelectric converting element provided outside the effective diameter of the lens system so as to be movable with the lens system, and directly receiving part of the light beam emitted from the light source by the photoelectric converting element to thereby detect the position of the lens system in the tracking direction.