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21. 发明申请

US20210120141A1 LENS MIRROR ARRAY AND IMAGE FORMING APPARATUS 有权
公开(公告)号：US20210120141A1
公开(公告)日：2021-04-22
申请号：US17133447
申请日：2020-12-23
申请人： KABUSHIKI KAISHA TOSHIBA , TOSHIBA TEC KABUSHIKI KAISHA
发明人： Takashi SHIRAISHI
IPC分类号： H04N1/193 , H04N1/10 , H04N1/031 , H04N1/028
摘要： In accordance with an embodiment, a lens mirror array includes a plurality of optical elements integrally connected in a first direction. Each optical element includes an incident side lens surface through which light enters the optical element, a ridge located at an edge of the incident side lens surface, a reflection surface on which light incident on the incident side lens surface is reflected, an exit side lens surface through which light reflected by the reflection surface exits the optical element, and a groove surrounding the reflection surface except for a portion adjacent to the ridge, the portion adjacent to the ridge connecting to an adjacent optical element in the plurality of optical elements.

22. 发明授权

US10972630B2 Method for flattening laser-based image of curved book page 有权
公开(公告)号：US10972630B2
公开(公告)日：2021-04-06
申请号：US16475009
申请日：2016-05-10
申请人： DALIAN CZUR TECH CO., LTD.
发明人： Kang Zhou
IPC分类号： H04N1/04 , H04N1/40 , H04N1/10
摘要： Provided is a method for flattening a laser-based image of a curved book page, which is applicable to a scanning platform and an image acquisition device and a laser generation device fixed above the scanning platform. The flattening method includes the following steps of: opening a book on a horizontally arranged scanning platform, and emitting a laser beam to a curved book page to be scanned, the laser beam forming a plurality of laser lines parallel on the curved book page; acquiring a horizontal image of the curved book page having the parallel laser lines, and acquiring a 2D planar coordinate (x, y) of each pixel on the laser line in the horizontal image; calculating, according a y-coordinate in the 2D planar coordinate, a y-coordinate of an intersection line of the laser beam and the scanning platform, and an intersection angle of the laser beam and the scanning platform, and by means of a tangent function, a height of each pixel on the laser line, i.e., an actual spatial height; calculating actual spatial heights of all pixels on each laser line, i.e., z-coordinates, to acquire a 3D spatial curve of the laser line; constructing, using the curve, an actual 3D curved surface of the photographed book page; and flattening the 3D curved surface after pixel value transfer to complete flattening of the curved book page.

23. 发明授权

US10812671B2 Image reader 有权
公开(公告)号：US10812671B2
公开(公告)日：2020-10-20
申请号：US16166429
申请日：2018-10-22
申请人： BROTHER KOGYO KABUSHIKI KAISHA
发明人： Lifan Yu
IPC分类号： H04N1/00 , H04N1/10 , G06T7/13
摘要： An image reader wherein a controller executes: a start process of starting a reading operation; a head edge detection process of detecting a document width; a first side edge detection process of detecting a side edge until an occurrence of a first change from a side edge detecting state to a side edge non-detecting state; a calculation process of calculating a continuation distance based on the document width; a second side edge detection process of detecting the side edge until an occurrence of a second change from the non-detecting state to the detecting state; a third side edge detection process of detecting the side edge until an occurrence of the first change; and an end process of ending the reading operation when the second change does not occur in a continuation range in the second detection process or when the first change occurs in the third detection process.

24. 发明申请

US20200329172A1 IMAGE READING APPARATUS 审中-公开
公开(公告)号：US20200329172A1
公开(公告)日：2020-10-15
申请号：US16838480
申请日：2020-04-02
申请人： CANON KABUSHIKI KAISHA
发明人： Tomofumi Sakuma
IPC分类号： H04N1/10 , H04N1/107
摘要： An image reading apparatus including: a reading unit configured to read an image of an original in a main scanning direction; a housing configured to accommodate the reading unit; a guide member configured to guide a movement of the reading unit in a sub-scanning direction orthogonal to the main scanning direction; and a restricting member configured to restrict the movement of the reading unit in the sub-scanning direction and a movement of the reading unit in a vertical direction orthogonal to the main scanning direction and the sub-scanning direction.

25. 发明授权

US10798265B1 Image reading device and image forming apparatus 有权
公开(公告)号：US10798265B1
公开(公告)日：2020-10-06
申请号：US16558158
申请日：2019-09-02
申请人： FUJI XEROX CO., LTD.
发明人： Hiroshi Watanabe
IPC分类号： H04N1/04 , H04N1/10 , H04N1/193
摘要： An image reading device includes an image reading unit that reads an image while moving in a sub-scanning direction, a casing that houses the image reading unit, a guiding member that is movable relative to the casing in the sub-scanning direction and guides the casing in the sub-scanning direction, and an endless member to which the casing is fixed and that endlessly travels between a starting position and a terminal position in the sub-scanning direction.

26. 发明授权

US10771651B2 Image forming apparatus and image correction method 有权
公开(公告)号：US10771651B2
公开(公告)日：2020-09-08
申请号：US16364758
申请日：2019-03-26
申请人： TOSHIBA TEC KABUSHIKI KAISHA
发明人： Takahiro Kojima , Jun Ishii , Shunsuke Ando , Motoshi Ueda
IPC分类号： H04N1/00 , H04N1/10 , H04N1/028 , H04N1/193
摘要： An image forming apparatus comprises a first temperature detector to detect a temperature of a first portion of an optical scanning device in a printer. The first portion is proximate to a heat generating element in the optical scanning device. A second temperature detector is provided to detect a temperature of a second portion of the optical scanning device, which is farther from the heat generating element than the first portion. A controller is configured to perform alignment control for correcting a color positional shift of the printer when either a detected temperature change of the first portion is greater than or equal to a first threshold value or a detected temperature change of the second portion is greater than or equal to a second threshold value.

27. 发明申请

US20200112648A1 IMAGE READING APPARATUS 审中-公开
公开(公告)号：US20200112648A1
公开(公告)日：2020-04-09
申请号：US16582523
申请日：2019-09-25
申请人： CANON KABUSHIKI KAISHA
发明人： Akiko Kanno
IPC分类号： H04N1/00 , H04N1/10 , H04N1/028
摘要： An image reading apparatus includes a detection unit provided at a position separated from a positioning portion by a predetermined distance in a first direction, a discriminator configured to determine a length, in the first direction, of a document, and a setting unit that sets a start position to a first position if a detection position at which the detection unit detects the document is not included in a range, in a second direction, of the transparent member that is covered by the document, and sets the start position to a second position if the detection position is included in the range and the detection unit does not detect the document, wherein, in the first direction, the distance between the first position and the positioning portion is larger than the distance between the second position and the positioning portion.

28. 发明授权

US10594887B1 Method for measuring beam to beam stitch error in the presence of variable width beams 有权
公开(公告)号：US10594887B1
公开(公告)日：2020-03-17
申请号：US16356632
申请日：2019-03-18
申请人： Xerox Corporation
发明人： James P. Calamita
IPC分类号： H04N1/06 , H04N1/04 , H04N1/10 , H04N1/113
摘要： According to aspects of the embodiments, there is provided process and architecture for enabling multiple digital micromirror devices (DMDs) that include optical modulation elements configured to modulate light outputting from a light source, and a projection unit configured to project light modulated by the optical modulation elements on a printing plate. Image defects due to misalignment in the cross-process direction of the output from the DMDs are discovered by using a single test pattern image and combined with knowledge of how individual pixels are rendered to register printing elements which can render a variable number of pixels. Misalignment errors can be corrected by selecting a different set of mirrors for a given DMD.

29. 发明授权

US10579195B2 Optical-capacitive sensor panel device and method for manufacturing same 有权
公开(公告)号：US10579195B2
公开(公告)日：2020-03-03
申请号：US15978224
申请日：2018-05-14
申请人： Bidirectional Display, Inc.
发明人： Hsuan-Yeh Chang , Anping Liu
IPC分类号： G06F3/044 , G06K9/00 , H04N1/10
摘要： The present disclosure provides an optical-capacitive sensor panel device. In one aspect, the panel device includes a transparent substrate having a first surface; an optical sensor array formed on the first surface of the transparent substrate, the optical sensor array including a plurality of photosensitive pixels spaced apart from each other and arranged on the first surface to form a lattice structure; a plurality of row electrodes formed on the optical sensor array and electrically coupled to a first group of the photosensitive pixels; a plurality of column electrodes formed on the optical sensor array crossing the row electrodes and electrically coupled to a second group of the photosensitive pixels; and an insulating layer formed between the row electrodes and the column electrodes.

30. 发明申请

US20200045202A1 IMAGE FORMING APPARATUS 审中-公开
公开(公告)号：US20200045202A1
公开(公告)日：2020-02-06
申请号：US16598460
申请日：2019-10-10
申请人： SHARP KABUSHIKI KAISHA
发明人： MANABU MATSUO , TAKAHARU MOTOYAMA
IPC分类号： H04N1/10 , G02B26/10 , H04N1/195
摘要： An image forming apparatus including an optical scanning device that scans an object to be scanned with a beam in a main scanning direction includes a first rotation fulcrum unit and a second rotation fulcrum unit that are respectively provided in the optical scanning device on one side and on the other side in an orthogonal direction orthogonal to the main scanning direction. The first rotation fulcrum unit is provided outside a scanning area of the beam in the main scanning direction. The optical scanning device is provided rotatably around a virtual rotation axial line connecting the first rotation fulcrum unit and the second rotation fulcrum unit.

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