Scanning optical apparatus
AssigneeCanon Kabushiki Kaisha
InventorKazuo Uzuki
Life of this patent
Estimating the term…
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.
Claims15
A scanning optical apparatus comprising:
- a light emitting means adapted to emit a laser beam;
- a deflection means for deflecting the laser beam from said light emitting means;
- first and second imaging lenses adapted to pass light to a photosensitive member from the laser beam by way of the deflection means, wherein each of said first and second imaging lenses comprises a biasing side, and wherein the biasing sides of said first and second imaging lenses are sides facing away from each other;
- an abutment reference portion, arranged in the optical axial direction, on each of said first and second imaging lenses, said abutment reference portion being arranged at the biasing side of each of said first and second imaging lenses;
- and
- a resilient member urging both of said first and second imaging lenses at respective abutment reference portions.
A scanning optical apparatus comprising:
- a light emitting means adapted to emit a laser beam;
- a deflection means for deflecting the laser beam from said light emitting means;
- first and second imaging lenses adapted to pass light to a photosensitive member from the laser beam by way of the deflection means, wherein each of said first and second imaging lenses comprises a biasing side, and wherein the biasing sides of said first and second imaging lenses face each other;
- an abutment reference portion, arranged in the optical axial direction, on each of said first and second imaging lenses, said abutment reference portion being arranged at the biasing side of each of said first and second imaging lenses;
- and
- a resilient member urging both of said first and second imaging lenses at respective abutment reference portions.
A scanning optical apparatus comprising:
- a light emitting means adapted to emit a laser beam;
- a deflection means for deflecting the laser beam from said light emitting means;
- first and second imaging lenses adapted to pass light to a photosensitive member from the laser beam by way of the deflection means;
- and
- an urging member for urging both of said first and second imaging lenses, said urging member being adapted to urge said second imaging lens in a direction opposite to the direction of urging of said first imaging lens.
A scanning optical apparatus comprising a light emitting means adapted to emit a laser beam, a deflection means for deflecting the laser beam from said light emitting means, first and second imaging lenses adapted to pass light to a photosensitive member from the laser beam by way of the deflection means, and an urging member for urging said first and second imaging lenses, said urging member being adapted to urge one or more than one optical component in addition to urging said first and second imaging lenses.
Dependencies are inferred from the claim text.