Abstract:
PROBLEM TO BE SOLVED: To provide an apparatus for reading images and a device for adjusting mirror thereof, which can carry out the scanner mirror adjusting operation efficiently and easily and improve a working efficiency. SOLUTION: The apparatus for reading images includes: a first carriage 30 having a lamp 33 for exposing a manuscript 35 and a first reflection mirror 34 for reflecting reflected light from the manuscript 35; a second carriage 32 including second and third reflection mirrors 37, 38 for returning the reflected light from the first carriage 30; an imaging optical unit 27 for imaging of the reflected light from the third reflection mirror 38 on an image sensor 26; a body casing 20 which accommodates at least the first and the second carriages 30 and 31, the imaging optical unit 27, and the image sensor 26 and has a top face covered with a manuscript glass 21 on which the manuscript is placed, and includes a hole 65 covered with a removable member on part of the surface thereof; and a mirror angle adjusting mechanism 55 which is provided on an end of the second reflection mirror and adjusts the angle of the second reflection mirror. The mirror angle adjusting mechanism 55 is capable of adjusting the angle of the second reflection mirror 37 from the hole 65. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a document reading unit in which the workability of adjustment for line sensors is improved. SOLUTION: A plurality of sensor assemblies 31 provided between a unit base 11 and a transparent document supporting plate 25 are disposed alternately in a first column for first reading a document and a second column for reading the document subsequently to the first column. Each of the sensor assemblies 31 comprises a sensor holder 32, a line sensor 51 and a focus setting means. The sensor holder 32 is provided rotatably with a single pivot (rotation center) 45 as a supporting point along with a wall 12a of the unit base 11 in parallel with the document supporting plate 25, and the sensor holder 32 rotated at a predetermined position is fixed on the wall 12a. The line sensor 51 is held so as not to move in main scan and sub scan directions with respect to the sensor holder 32, and provided movably close to or away from the wall 12a and the document supporting plate 25. For the focus setting means comprised of a coil spring 65 and a spacer 66, the line sensor 51 is moved in said approaching/separating direction and disposed at a position where a focus is determined. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract in simplified Chinese:本创作提供一种扫描模块,包含一第一部份、一第二部份、以及一第三部份。该第一部份具有一光源供取得欲扫描之一第一影像。该第二部份供将该第一影像予以聚焦后输出一第二影像。该第三部份供截取该第二影像以产生一电气信号。其中,该第一部份、该第二部份、及该第三部份皆互为分离之模块,可集成利用既有之零件与技术,使零件标准化、简易化且可量化,满足量化生产并降低成本的需求。
Abstract:
An optical scanning device includes a light source, an optical system, and a housing. The light source projects a light beam. The housing includes a holder and encloses the optical system. The optical system includes a liquid crystal element held by the housing via the holder, to modulate a phase of the light beam projected from the light source against a scanned surface. The liquid crystal element includes a plurality of substantially transparent substrates, a liquid crystal layer, and a sealing member. One of the plurality of the transparent substrates has a size larger than any other transparent substrates and is positioned in the holder. The liquid crystal layer is sandwiched between the plurality of substantially transparent substrates. The sealing member seals the liquid crystal layer between the plurality of substantially transparent substrates.
Abstract:
PROBLEM TO BE SOLVED: To irradiate a main scanning of an original with a light emitted from a plurality of point light sources uniformly not to cause lack of irradiation without producing mounting detachment and a damage of a light source during assembling, transporting, or the like by pressing the light guide member against the plurality of light sources during assembling to apply load to the plurality of light sources in an image reading apparatus in which the light guide member is arranged between the plurality of point light sources arrayed and mounted on a substrate and an original surface.SOLUTION: In the image reading apparatus including: an array substrate 3 in which a plurality of LEDs 31 are arranged and mounted linearly in prescribed gaps; a light guide member 4 disposed on a surface of the array substrate 3 that mounts the plurality of LEDs 31 point light sources; a frame 5 for fixing the light guide member 4 and the array substrate 3, positioning pins that determine the positional relationship are provided in the frame 5 or the light guide member 4 by being fitted into a positioning holes formed in the array substrate 3 and the light guide member 4 or the frame 5 while an incident face 41 of the light guide member 4 is in proximity to or in contact with the plurality of LEDs 31.
Abstract:
A image reading apparatus includes a plurality of point light sources, arranged in a straight line state, configured to output light for lighting a document situated on a contact glass from a lower side of the contact glass, a light leading member, positioned in front in a light outputting direction of the light output from the point light sources, configured to lead the light output from the point light sources so as to irradiate along a main scanning direction toward the document situated on the contact glass, and a photoelectric conversion element configured to receive reflection light from the document. The light leading member includes positioning means configured to make a gap between each of the point light sources arranged in a line state and the light leading member constant and make an arrangement direction of the point light sources be positioned along a longitudinal direction of the light leading member.
Abstract:
An image scanning unit includes at least two lens groups for imaging a reflected image of a manuscript on a lined photoelectric conversion element ( 12 ), lens barrels ( 14, 15 ) for holding the lenses, respectively, and constituting an imaging lens system ( 16 ), a base member ( 10 ) on which the lined photoelectric conversion element ( 12 ) and the lens barrels ( 14, 15 ) are disposed, and intermediate holding members ( 13, 19 ) for mounting at least one of the lens barrels ( 14 ) and the lined photoelectric conversion element ( 12 ) on the base member ( 10 ).
Abstract:
PROBLEM TO BE SOLVED: To solve the problem in which a locally thick part becomes a weak point to easily cause mechanical resonance vibration from an image reader and then picture quality deteriorates as the locally thick part is formed as a substrate for fitting and a mask are adjacent to each other when the image reader is made small-sized, while a resin-made lens block is equipped with a mask for shading correction integrally and the mask has an aperture increasing in size toward an end in a main scanning direction to capture more marginal light flux than center luminous flux. SOLUTION: At a center part of a mask part 202, upper and lower light shield parts 202a cut off upper and lower parts of light flux 103 of the center part incident on a lens block 201 and parts of ends of the mask part 202 are formed of an arcuate connection part 202b for pieces 104 and 105 of light flux incident from the end, so that the light flux is all incident and a large thickness is obtained with a fitting part 201a. COPYRIGHT: (C)2006,JPO&NCIPI