摘要:
A lens plate includes at least one lens row including a plurality of lenses aligned in a first direction, each lens including a lens surface that includes perimeter portions extending in a second direction substantially perpendicular to the first direction such that two adjacent lenses are contiguous with each other at the perimeter portions.
摘要:
A lens unit includes first and second arrays of microlenses. The microlenses in the first array have mutually parallel optical axes and are aligned in a meridional direction orthogonal to their optical axes. The microlenses in the second array are aligned in the same direction as the lenses in the first array, and have optical axes that coincide with the optical axes of corresponding microlenses in the first array. The microlenses in the first array collimate light incident in a sagittal plane orthogonal to the meridional direction. The microlenses in the second array focus the collimated light in the sagittal plane. The lens unit is useful in the scanning heads of scanning devices, the LED heads of LED printers, and in the exposure devices of other electrophotographic image forming apparatus.
摘要:
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 thought the optical axes. The lens assembly members and the light blocking member are arranged so that the following relationship is satisfied: RAY/RLY
摘要:
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.The lens assembly members and the light blocking member are arranged so that the following relationship is satisfied: RAY/RLY
摘要:
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.
摘要:
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 3 that are fixed on a rotor iron core 2 and arranged spaced apart from one another in the circumferential direction of the rotor iron core 2, is characterized by including a tube-shaped non-magnetic ring 4 mounted on the outer circumferential surfaces of the plurality of magnetic poles 3, and characterized in that the non-magnetic ring has a plurality of inner-diameter bulging portions 41 that abut on the corresponding outer circumferential surfaces of the plurality of magnetic poles.
摘要:
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.Further, the lens assembly members and the light blocking member are arranged so that the following relationship is satisfied: ( PX 2 ) 2 + ( PY 4 ) 2 ≤ RA LO - F F where PY is a pitch of the lenses in one row, PX is a pitch of the rows, F is a focal length of each of the lenses, LO is a distance between each of the lenses and an object surface thereof, and RA is a distance between the optical axis and an inner surface of the aperture.
摘要:
A lens array has a plurality of rod lenses with optical axes in parallel with one another, in which the rod lens has a refractive-index distribution in a radial direction. The lens array has a radius ratio r0/r set to 0.9 or smaller, in which a radius r of the rod lens is set where the refractive-index distribution is formed, and in which a radius r1, of the rod lens is set where all or part of an outer periphery of the rod lens is removed after formation of the refractive-index distribution.
摘要翻译:透镜阵列具有多个彼此平行的光轴的棒状透镜,其中棒状透镜在径向具有折射率分布。 透镜阵列的半径比r <0 / R / R设定为0.9或更小,其中设置折射率分布形成的棒状透镜的半径r,其中半径r 设置棒状透镜的1/1,其中,在形成折射率分布之后,去除棒状透镜的外周的全部或部分。
摘要:
An image forming apparatus includes a photosensitive body (11) having a charge transport layer (11d) as a surface layer. The charge transport layer (11d) as the surface layer is charged and exposed so that a latent image is formed thereon. In order to form a basic dot whose diameter is from 10 μm to 25 μm, a thickness t (μm) of the charge transport layer (11d) and a diameter D (μm) of the basic dot satisfy the relationship of t≦=D/2.
摘要翻译:图像形成装置包括具有作为表面层的电荷输送层(11d)的感光体(11)。 作为表面层的电荷传输层(11d)被充电和曝光,从而在其上形成潜像。 为了形成直径为10〜25μm的基本点,电荷输送层(11d)的厚度t(mum)和基本点的直径D(母体)满足t < = D / 2。
摘要:
An image forming apparatus includes a rotating photoconductive drum, charging roller, exposing unit, developing unit, transfer roller, cleaning blade, and controller. The charging member charges the surface of the photoconductive drum. The exposing unit illuminates the surface charged by the charging roller to form an electrostatic latent image. The developing unit develops the electrostatic latent image into a toner image. The transfer roller transfers the toner image onto a recording medium. The cleaning blade removes residual toner that failed to be transferred onto the recording medium. Prior to the discharge of deteriorated toner in the developing unit, the charging member charges the photoconductive drum which in turn charges the transfer roller. The toner discharged from the developing unit remains on the photoconductive drum when an area on the photoconductive drum passes by the transfer roller as the photoconductive drum rotates.