Light source device, optical scanning device, and image forming apparatus
AssigneeRicoh Company, Ltd.
InventorNobuaki Kubo
Life of this patent
Estimating the term…
Abstract
A light source including a plurality of light emitting areas formed in a two-dimension array is mounted on a substrate. A holding member holds an optical system that shapes a laser beam emitted from each of the light emitting areas, a splitting element that splits a part of the laser beam passed through the optical system, and a light receiving system that receives split laser beam. A base member including an aligning unit that aligns the light source in a direction along an optical axis of the optical system and a direction perpendicular to the optical axis is connected to the holding member. An elastic member presses the substrate against the base member.
Claims20
A light source device comprising:
- a light source including a packaged light emitting element in which plural light emitting areas each emitting a laser beam in a predetermined axis direction are formed in a two-dimension array;
- a substrate on which the light source is mounted;
- an optical system that shapes the laser beam emitted from each of the light emitting areas;
- a splitting element that splits a part of the laser beam passed through the optical system;
- a light receiving system that receives the laser beam split by the splitting element;
- a holding member that holds the optical system, the splitting element, and the light receiving system;
- a base member that is connected to the holding member, the base member including an aligning unit that aligns a position of the light source in a direction along an optical axis of the optical system and a direction perpendicular to the optical axis;
- and
- an elastic member that presses the substrate against the base member.
An optical scanning device that scans a scanning surface in a main scanning direction using a laser beam, the optical scanning device comprising:
- a light source device including
- a light source including a packaged light emitting element in which plural light emitting areas each emitting a laser beam in a predetermined axis direction are formed in a two-dimension array,
- a substrate on which the light source is mounted,
- an optical system that shapes the laser beam emitted from each of the light emitting areas,
- a splitting element that splits a part of the laser beam passed through the optical system,
- a light receiving system that receives the laser beam split by the splitting element,
- a holding member that holds the optical system, the splitting element, and the light receiving system,
- a base member that is connected to the holding member, the base member including an aligning unit that aligns a position of the light source in a direction along an optical axis of the optical system and a direction perpendicular to the optical axis, and
- an elastic member that presses the substrate against the base member;
- and
- a scanning optical system that deflects laser beams emitted from the light source device to the main scanning direction for scanning.
An image forming apparatus that forms an image on a recording medium by fixing a toner image that is formed based on a latent image obtained from image information onto the recording medium, the image forming apparatus comprising:
- an optical scanning device that scans a scanning surface in a main scanning direction using a laser beam, the optical scanning device including
- a light source device including
- a light source including a packaged light emitting element in which plural light emitting areas each emitting a laser beam in a predetermined axis direction are formed in a two-dimension array,
- a substrate on which the light source is mounted,
- an optical system that shapes the laser beam emitted from each of the light emitting areas,
- a splitting element that splits a part of the laser beam passed through the optical system,
- a light receiving system that receives the laser beam split by the splitting element,
- a holding member that holds the optical system, the splitting element, and the light receiving system,
- a base member that is connected to the holding member, the base member including an aligning unit that aligns a position of the light source in a direction along an optical axis of the optical system and a direction perpendicular to the optical axis, and
- an elastic member that presses the substrate against the base member, and
- a scanning optical system that deflects laser beams emitted from the light source device to the main scanning direction for scanning;
- a photosensitive element on which the optical scanning device forms the latent image;
- a developing unit that develops the latent image formed on the photosensitive element with toner to obtain a toner image;
- and
- a transferring unit that transfers and fixes the toner image onto the recording medium.
Dependencies are inferred from the claim text.