Abstract: An electronic-component-attached resin housing is provided that comprises a housing and an electronic component mounting film. The housing is made of resin. The electronic component mounting film includes a base film, a circuit pattern layer, an electronic component, and a reinforcing layer. The base film is disposed along an inner surface of the housing. The circuit pattern layer is formed on at least a surface of the base film opposite to a housing side of the base film. The electronic component is connected to the circuit pattern layer and mounted on the surface of the base film opposite to the housing side of the base film. The reinforcing layer is formed on the housing side of the base film facing the electronic component. The electronic component is integrated with the housing without the electronic component being buried in the housing.

Abstract: An optical writing device includes: an image carrier; an exposer that exposes a curved surface of the image carrier; and a control circuit that controls the exposer, wherein the exposer includes a plurality of light-emitting element groups having different positional relationships from one another with the image carrier, and has a configuration that is adjusted in accordance with at least one of an angle at which light reaching the curved surface of the image carrier from each light-emitting element group enters the image carrier, and a distance of each light-emitting element group from the image carrier.

Abstract: An exposure device includes: a first lens array unit and a second lens array unit each including a plurality of optical elements formed in a formation surface with respective optical axes parallel to each other, the formation surface of the first lens array unit being not perpendicular to the optical axes; a first lens array holder and a second lens array holder that hold the first lens array unit and the second lens array unit with the respective optical axes of the plurality of optical elements parallel to each other; and a light source assembly in which optical element groups each including a plurality of light-emitting devices aligned in a direction perpendicular to the optical axes are disposed at different positions in a direction parallel to the optical axes, wherein the first lens array unit is provided with a first seating surface and a second seating surface.

Abstract: An exposure device includes: a first lens array unit and a second lens array unit each including a plurality of optical elements formed in a formation surface with respective optical axes parallel to each other, the formation surface of the first lens array unit being not perpendicular to the optical axes; a first lens array holder and a second lens array holder that hold the first lens array unit and the second lens array unit with the respective optical axes of the plurality of optical elements parallel to each other; and a light source assembly in which optical element groups each including a plurality of light-emitting devices aligned in a direction perpendicular to the optical axes are disposed at different positions in a direction parallel to the optical axes, wherein the first lens array unit is provided with a first seating surface and a second seating surface.

Abstract: An optical writing device includes: an image carrier; an exposer that exposes a curved surface of the image carrier; and a control circuit that controls the exposer, wherein the exposer includes a plurality of light-emitting element groups having different positional relationships from one another with the image carrier, and has a configuration that is adjusted in accordance with at least one of an angle at which light reaching the curved surface of the image carrier from each light-emitting element group enters the image carrier, and a distance of each light-emitting element group from the image carrier.

Abstract: An optical writing device includes: a deflector that deflects and scans light; optical elements; and a housing that holds the deflector and the optical element, wherein a support plate of the housing has an enclosed inner region that is substantially surrounded by a vibration suppressor and a vibration transmission blocker and supports the deflector, and the support plate also has a flat portion having a peninsular shape facing the vibration transmission blocker in the enclosed inner region, and an element holder for at least one or more of the optical elements having optical sensitivity in a vibration direction of the housing is disposed outside the enclosed inner region.

Abstract: An exposure apparatus includes: light source substrates on which light sources aligned in a first direction are aligned in rows and formed on a formation surface; an optical element that causes light emitted from the light sources to form an image on a surface of an image carrier that has a cylindrical shape and rotates with a rotational symmetry axis parallel to the first direction; a microlens array in which the optical elements aligned in the first direction are aligned in rows; and a holder that holds the light source substrates, wherein in each of the light source substrates, at least two of the light sources are formed at different positions in a second direction intersecting with the first direction and being parallel to the formation surface, and the holder holds the light source substrates to cause the formation surfaces of the light source substrates to cross each other.

Abstract: An optical scanning device including: a light source; a deflector that deflects light from the light source; an optical element that guides light deflected by the deflector on an optical path to a photosensor; and a housing that accommodates the deflector and the optical element. The housing is integrally formed and includes a bottom plate, a side wall standing upright from a periphery of a main surface of the bottom plate, and a pair of ribs parallel with each other and standing upright from the bottom plate. Both longitudinal ends of each of the ribs in plan view are joined to the side wall. A region of the bottom plate between the ribs in the plan view has a portion displaced farther upward in an upright direction of the side wall than other regions of the bottom plate.

Abstract: In an optical scanning device, a housing has a structure divided into an upper stage and a lower stage by a mounting plate on which a deflector, a first optical system and a second optical system are mounted. A first optical system reflection mirror and a second optical system reflection mirror are mounted in the other of the upper stage and the lower stage in which the deflector is not mounted. Each of the first optical system and the second optical system is disposed across a region including the upper stage and the lower stage. The first optical system reflection mirror and the second optical system reflection mirror are disposed with the deflector located therebetween. The first optical system reflection mirror is disposed on a side of the second optical system, and the second optical system reflection mirror is disposed on a side of the first optical system.

Abstract: In a displacement sensor, an illumination optical system, which converts laser light emitted from an emission unit into first converging light, and irradiates with the first converging light a detection space through which a target moves. An imaging optical system converts laser light reflected from the target into second converging light, and irradiates with the second converging light a light-receiving surface of a detection unit. The image of the emission unit into which the illumination optical system focuses the first converging light is displaced along the optical axis of the imaging optical system by a temperature change of the illumination optical system. The range in which the image is displaced is limited to be located either anterior to the front principal point of the imaging optical system, or posterior to the rear principal point of the imaging optical system.

Abstract: In an optical scanning device, a housing has a structure divided into an upper stage and a lower stage by a mounting plate on which a deflector, a first optical system and a second optical system are mounted. A first optical system reflection mirror and a second optical system reflection mirror are mounted in the other of the upper stage and the lower stage in which the deflector is not mounted. Each of the first optical system and the second optical system is disposed across a region including the upper stage and the lower stage. The first optical system reflection mirror and the second optical system reflection mirror are disposed with the deflector located therebetween. The first optical system reflection mirror is disposed on a side of the second optical system, and the second optical system reflection mirror is disposed on a side of the first optical system.

Abstract: An optical scanning device has a housing in which a duct surrounds a space from the deflector and its circumference to an outlet in insulation from the optical system, and guides gas from an inlet to the space. A positioning member is shaped as a pillar that protrudes from the floor of the duct towards the deflector and has a tip to contact with the deflector to locate the rotation axis of the polygon mirror at a position relative to the housing. The positioning member further limits a clearance between an outer surface of the deflector and the floor to secure therein a flow path of the gas.

Abstract: An optical scanning device including: a light source; a deflector that deflects light from the light source; an optical element that guides light deflected by the deflector on an optical path to a photosensor; and a housing that accommodates the deflector and the optical element. The housing is integrally formed and includes a bottom plate, a side wall standing upright from a periphery of a main surface of the bottom plate, and a pair of ribs parallel with each other and standing upright from the bottom plate. Both longitudinal ends of each of the ribs in plan view are joined to the side wall. A region of the bottom plate between the ribs in the plan view has a portion displaced farther upward in an upright direction of the side wall than other regions of the bottom plate.

Abstract: An optical scanning device has a housing in which a duct surrounds a space from the deflector and its circumference to an outlet in insulation from the optical system, and guides gas from an inlet to the space. A positioning member is shaped as a pillar that protrudes from the floor of the duct towards the deflector and has a tip to contact with the deflector to locate the rotation axis of the polygon mirror at a position relative to the housing. The positioning member further limits a clearance between an outer surface of the deflector and the floor to secure therein a flow path of the gas.

Abstract: In a displacement sensor, an illumination optical system, which converts laser light emitted from an emission unit into first converging light, and irradiates with the first converging light a detection space through which a target moves. An imaging optical system converts laser light reflected from the target into second converging light, and irradiates with the second converging light a light-receiving surface of a detection unit. The image of the emission unit into which the illumination optical system focuses the first converging light is displaced along the optical axis of the imaging optical system by a temperature change of the illumination optical system. The range in which the image is displaced is limited to be located either anterior to the front principal point of the imaging optical system, or posterior to the rear principal point of the imaging optical system.

Abstract: An optical scanning device comprises: photoreceptors corresponding one-to-one to solid colors; high-resolution light sources each emitting a set of beams irradiating the corresponding photoreceptor with a predetermined distance therebetween along a sub-scanning direction; a deflection unit; a first optical system directing the sets of beams from the high-resolution light sources to the deflection unit; a low-resolution light source emitting a set of beams irradiating a predetermined photoreceptor with a distance therebetween larger than the predetermined distance along the sub-scanning direction; and a second optical system directing all of the sets of beams to the corresponding photoreceptor.

Abstract: An optical scanning device includes a plurality of light sources, at least two securing units provided for each of the light sources, and a substrate for driving the light sources. The components are arranged such that the direction “A” in which the light sources are arranged has an upward slant with respect to a lateral direction (i.e. X direction) of the substrate, and the direction “B” in which the at least two securing units provided for each of the light sources are arranged has a downward slant with respect to the lateral direction of the substrate. Accordingly, a compact optical scanning device can be provided.

Abstract: An optical scanning device comprises: photoreceptors corresponding one-to-one to solid colors; high-resolution light sources each emitting a set of beams irradiating the corresponding photoreceptor with a predetermined distance therebetween along a sub-scanning direction; a deflection unit; a first optical system directing the sets of beams from the high-resolution light sources to the deflection unit; a low-resolution light source emitting a set of beams irradiating a predetermined photoreceptor with a distance therebetween larger than the predetermined distance along the sub-scanning direction; and a second optical system directing all of the sets of beams to the corresponding photoreceptor.

Abstract: An optical scanning device in which optical beams from a light-emitting element are passed through a collimator lens and are deflected by a deflector and which scans over an image carrier by using the deflected optical beams, comprising: a device housing; and a holder supported on a base of the housing so as to be rotatable about an optical axis of the collimator lens, and penetrating through a through-hole in a side wall of the housing along the optical axis without contacting the side wall, wherein the holder includes first and second holder parts, the first holder part located inside the housing, and the second holder part located outside the housing, the collimator lens is held by the first holder part, the light-emitting element is held by the second holder part, and the optical beams pass through the through-hole in the side wall and reach the collimator lens.

Abstract: An optical scanning device includes a plurality of light sources, at least two securing units provided for each of the light sources, and a substrate for driving the light sources. The components are arranged such that the direction “A” in which the light sources are arranged has an upward slant with respect to a lateral direction (i.e. X direction) of the substrate, and the direction “B” in which the at least two securing units provided for each of the light sources are arranged has a downward slant with respect to the lateral direction of the substrate. Accordingly, a compact optical scanning device can be provided.