| Patent application number | Description | Published |
|---|
| 20090067055 | Lens array, manufacturing method thereof, LED head having lens array, exposure device having LED head, image forming apparatus having exposure device, and reading apparatus - An exposure device is provided that has a light emitting unit having a plurality of light emitting elements and a lens array having a pair of lenses having a first lens and a second lens, the lens array having a shielding unit for shielding a light from any one of the pair of lenses, wherein a formula EC| 03-12-2009 | |
| 20090237802 | Lens array, light emitting diode head, exposure device, image forming apparatus, and image reading apparatus - A lens array includes a plurality of lens assembly members with a plurality of lenses and a light blocking member with a plurality of apertures arranged therein. The lens assembly members are arranged so that an optical axis of each of the lenses of one of the lens assembly members is aligned with an optical axis of each of the lenses of another of the lens assembly members. | 09-24-2009 |
| 20090322847 | Exposure device, LED head, image forming apparatus, and reading apparatus - An exposure device includes a light emitting portion array formed of a plurality of light emitting portions and a lens array including lens assembly members formed of lenses and a light blocking member. The light emitting portions are arranged linearly with a specific interval PD. The light emitting portion array and the lens array are arranged so that when light in parallel to the optical axis of one of the lenses is incident to the lens from a direction of the light blocking member, the lens forms a spot having a radius RS satisfying the following relationship: | 12-31-2009 |
| 20090323191 | Lens array, LED print head, exposure device, image forming apparatus, and reading apparatus - A lens array includes a lens plate having a plurality of lenses arranged next to each other in a direction perpendicular to optical axes thereof, and a light blocking member for blocking light incident on the lenses. The light blocking member includes a light blocking portion and a plurality of light passing portions arranged at positions corresponding to the lenses. The light passing portions communicate with each other. | 12-31-2009 |
| 20100002307 | Lens array, led head, exposure device, image forming apparatus and reading apparatus - A lens array includes a plurality of lens units each of which includes a plurality of microlenses linearly arranged, and a light shielding member having a plurality of openings as apertures. The openings are disposed so as to face the microlenses of respective lens units. Facing microlenses of the lens units have optical axes substantially aligned with each other and passing the openings of the light shielding member. Light absorbing portions are provided in the openings. | 01-07-2010 |
| 20100018032 | Rotor of Rotating Electrical Machine and Manufacturing Method Therefor - A rotor of a rotating electrical machine is provided in which neither deterioration nor fluctuation in the cogging torque is caused and that causes neither physical enlargement nor cost increase. The rotor of a rotating electrical machine, provided with a plurality of magnetic poles | 01-28-2010 |
| 20100157429 | Lens array, LED head, exposure device, image forming apparatus and reading apparatus - A lens array includes a plurality of lens groups each of which includes a plurality of lenses arranged in a direction perpendicular to optical axes of the lenses. The lens groups are disposed so that the lenses of the respective lens groups have aligned optical axes. A light shielding member is provided between the lens groups. The light shielding member has a plurality of apertures with substantially cylindrical shapes through which the optical axes of the respective lenses pass. The light shielding member is integrally formed so as to include a plurality of the apertures. | 06-24-2010 |
| 20100177400 | Lens array, lens unit, led head, exposing unit, image forming apparatus, and image reading apparatus - A lens array forms an erect image of an object. The lens array includes at least one row of lens elements and at least one rib. The lens elements are aligned in a first direction perpendicular to optical axes of the lens elements having an incidence surface and an exit surface. The rib is formed on the lens array and extending in a second direction parallel to the first direction and in a third direction parallel to the optical axes further than the incidence surface and the exit surface. A lens unit includes a shielding member and the lens array assembled to the shielding member. The shielding member includes diaphragms formed therein and aligned in a first direction, and a first engagement portion. The lens array includes a second engagement portion for engaging the first engagement portion to correct deformation of the lens array. | 07-15-2010 |
| 20100202059 | LENS ARRAY, LIGHT EMITTING DIODE HEAD, EXPOSURE DEVICE, IMAGE FORMING APPARATUS, AND READING APPARATUS - A lens array includes a lens assembly member and a light blocking member. The lens assembly member includes lens elements arranged in an arrangement direction substantially perpendicular to optical axes thereof. The light blocking member includes apertures extending and passing through the optical axes. | 08-12-2010 |
| 20100220375 | LENS UNIT, LIGHT EMITTING DIODE HEAD, EXPOSURE DEVICE, IMAGE FORMING APPARATUS, AND READING APPARATUS - A lens unit includes a lens array, a first light blocking member, and a second light blocking member. The lens array includes a plurality of lens pairs arranged in a substantially linear arrangement. Each of the lens pairs includes a first lens for forming an inverted reduced-size image of an object and a second lens for forming an inverted enlarged-size image of the inverted reduced-size image. The first light blocking member is disposed between the first lenses and the second lenses, and includes first apertures. The second light blocking member includes second apertures arranged in a substantially linear arrangement corresponding to an arrangement interval of the lens pairs, and having different opening portion shapes depending on a position of the lens pairs in an optical axis direction of the lens pairs. The second light blocking member is disposed at least between the first lenses and an object plane or the second lenses and an image plane. | 09-02-2010 |
| 20110102886 | LENS UNIT, LED HEAD, EXPOSING UNIT, IMAGE FORMING APPARATUS, AND SCANNING APPARATUS - Lens pairs include: a first lens to form an intermediate image, which is an inverted image of an object, on an intermediate image plane; and a second lens to form an image of the object, which is an inverted image of the intermediate image, on the image plane. A ratio of SO | 05-05-2011 |
| 20110129254 | Neutralization device, developing device and image forming apparatus - A neutralization device includes a light emitter, an optical conductor and multiple diffusion portions. The light emitter emits light for neutralizing an object. The optical conductor, which is opposed to the object and extends in a longitudinal direction, directs and applies the light to the object. The diffusion portions are arranged on the optical conductor in a zig-zag manner from one end of the optical conductor to the other and diffuse the light. | 06-02-2011 |
| 20110149404 | LENS ARRAY, LIGHT EMITTING DIODE HEAD, EXPOSURE DEVICE, IMAGE FORMING APPARATUS, AND IMAGE READING APPARATUS - A lens array includes a plurality of lens assembly members with a plurality of lenses, a light blocking member with a plurality of apertures arranged therein, and a light blocking member including a plurality of apertures arranged therein. The lens assembly members are arranged so that an optical axis of each of the lenses of one of the lens assembly members is aligned with an optical axis of each of the lenses of another of the lens assembly members. Further, the lens assembly members and the light blocking member are arranged so that the following relationship is satisfied: | 06-23-2011 |
