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公开(公告)号：US20200159143A1
公开(公告)日：2020-05-21
申请号：US16673842
申请日：2019-11-04
Applicant: KONICA MINOLTA, INC.
Inventor： Akira TANIYAMA , Masahiko TAKAHASHI , Naoki TAJIMA , Takashi KUROSAWA , Hajime TANIGUCHI
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.
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公开(公告)号：US20180250952A1
公开(公告)日：2018-09-06
申请号：US15902644
申请日：2018-02-22
Applicant: Konica Minolta, Inc.
Inventor： Takafumi YUASA , Akira TANIYAMA , Hidenari TACHIBE
CPC classification number: B41J2/451 , B41J2/447 , B41J2/45 , G02B7/02 , G03G15/04045 , H01L51/0004 , H04N1/02815 , H04N1/0306
Abstract: An optical print head, including: an elongated substrate having a line-shaped region in which light-emitting elements are arranged; an optical member condensing light from the light-emitting elements onto an irradiation target; a holding member holding the optical member; a base member holding the substrate and the holding member; an integrated circuit mounted in a first region in proximity of an end in a longitudinal direction of the substrate on a first surface of the substrate facing the base member, heat being generated in the integrated circuit during optical writing; and a thermally conductive member between the integrated circuit and the base member. In the optical print head, the holding member has a support portion contacting the substrate in a second region at a position differing from the first region in plan view on a second surface of the substrate not facing the base member.
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公开(公告)号：US20170115592A1
公开(公告)日：2017-04-27
申请号：US15282889
申请日：2016-09-30
Applicant: KONICA MINOLTA, INC.
Inventor： So YANO , Masayuki IIJIMA , Takahiro MATSUO , Takaki UEMURA , Akira TANIYAMA
IPC: B41J2/385
CPC classification number: G03G15/04054 , G03G15/04063
Abstract: A light emitting device configured to cause a series circuit in which an OLED is connected to a thin film transistor to emit light by applying a predetermined voltage to the thin film transistor includes: a forward direction voltage estimating unit configured to estimate a forward direction voltage in a case where the OLED is caused to emit light at a set light quantity; a driving current amount estimating unit configured to estimate a driving current amount required for causing the OLED to emit light at the set light quantity; a source-drain voltage calculating unit configured to calculate a source-drain voltage applied to the thin film transistor from the predetermined voltage and the forward direction voltage; and a gate-source voltage determining unit configured to determine a gate-source voltage of the thin film transistor corresponding to the source-drain voltage in a case where the driving current amount is a drain current.
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公开(公告)号：US20250155672A1
公开(公告)日：2025-05-15
申请号：US18941007
申请日：2024-11-08
Applicant: Konica Minolta, Inc.
Inventor： Akira TANIYAMA , Ryo HASEGAWA , Takahiro MATSUO , Yoshihiro INAGAKI , Ema MOCHIZUKI
Abstract: An optical mirror with an elongated shape, including: a mirror including a substrate and a reflective surface formed on one end surface in a thickness direction of the substrate; a reinforcing member with an elongated shape bonded to a surface of the mirror opposite to the reflective surface; an adhesive layer disposed between the mirror and the reinforcing member, wherein the adhesive layer partially covers an adhesive surface between the mirror and the reinforcing member, and wherein on a central axis extending in a longitudinal direction of the adhesive surface, a sum of a maximum length of the adhesive layer in the longitudinal direction is 40% or more of a length of the adhesive surface in the longitudinal direction.
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公开(公告)号：US20200326533A1
公开(公告)日：2020-10-15
申请号：US16833817
申请日：2020-03-30
Applicant: Konica Minolta, Inc.
Inventor： Akira TANIYAMA , Masahiko TAKAHASHI , Naoki TAJIMA , Takashi KUROSAWA
Abstract: An optical writing device performs writing by scanning an image surface of a photoconductor with light, and includes a light source unit including a light source that emits light, a deflection unit that deflects and scans the light, an optical element unit for the light, and a housing unit that holds the light source unit, the deflection unit, and the optical element unit. The housing unit includes a vibration isolator that isolates vibration transmitted from a vibration antinode where distribution of vibration in a sub direction perpendicular to a scanning direction of the light on the image surface of the photoconductor is maximum to at least one of seat face parts for the light source unit and the optical element unit having optical sensitivity in the sub direction, in a bottom face part of the housing unit, and a rigidity enhancer that increases rigidity of the seat face part.
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Patent Agency Ranking
公开(公告)号：US20240027749A1
公开(公告)日：2024-01-25
申请号：US18353178
申请日：2023-07-17
Applicant: Konica Minolta Inc.
Inventor： Akira TANIYAMA , Ryo HASEGAWA , Takahiro MATSUO
CPC classification number: G02B26/124 , G02B26/0816 , G03G15/0409
Abstract: An optical device includes: an optical element having a first surface and a second surface; a first seat surface member that abuts on the first surface of the optical element; a first pressing member that abuts on the second surface of the optical element at a position facing the first seat surface member via the optical element, and press the optical element against the first seat surface member; an adjustment member that abuts on the second surface of the optical element at a position different from the first pressing member, and displaces the abutment position to adjust a posture of the optical element; and a second pressing member that abuts on the first surface of the optical element at a position facing the adjustment member via the optical element, and applies a pressing force to the abutment position to press the optical element against the adjustment member.
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公开(公告)号：US20190163088A1
公开(公告)日：2019-05-30
申请号：US16202776
申请日：2018-11-28
Applicant: KONICA MINOLTA, INC.
Inventor： Akira TANIYAMA , Hideo UEMURA , Takashi KUROSAWA , Naoki TAJIMA
IPC: G03G15/043 , G03G15/04 , G03G15/01
Abstract: In an optical writing device that deflects light beams from first and second light source sections and performs scanning by first and second scanning optical systems, in reflective optical elements disposed in the optical axis direction from after the polygon mirror to before a separation mirror, a number of hold points on each of a writing start side and a writing end side in scanning is same, and in reflective optical elements disposed from after the separation mirror up to a surface to be scanned, a number of hold points on a writing start side of the first scanning optical system is same (one) with that on a writing end side of the second scanning optical system, and a number of hold points on a writing end side of the first scanning optical system is same (two) with that on a writing start side of the second scanning optical system.
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公开(公告)号：US20160334756A1
公开(公告)日：2016-11-17
申请号：US15153235
申请日：2016-05-12
Applicant: Konica Minolta, Inc.
Inventor： Akira TANIYAMA , So YANO , Takahiro MATSUO , Yasushi NAGASAKA , Takaki UEMURA , Masayuki llJIMA
IPC: B41J2/385
CPC classification number: G03G21/20 , G03G15/04063 , G03G15/043
Abstract: An optical writing device adopting a low cost and simple structure can obtain temperatures of light emitting elements. The device comprises a plurality of light emitting elements arranged linearly in a main scanning direction. The amount of light emitting of the light emitting elements changes by self-generated heat. The light emitting elements are divided into a plurality of groups. Each of the groups includes a prescribed number of light emitting elements. The device comprises a control unit for calculating the amount of heat generation of the light emitting elements for each of groups from clock time t0 to clock time t0+Δt. The control unit calculates the temperature for each of the groups at the clock time t0+Δt, based on the amount of heat generation from the clock time t0 to the clock time t0+Δt and the temperature at the clock time t0.
Abstract translation: 采用低成本和简单结构的光写入装置可以获得发光元件的温度。 该装置包括沿主扫描方向直线布置的多个发光元件。 发光元件的发光量通过自发热量而变化。 发光元件被分成多组。 每个组包括规定数量的发光元件。 该装置包括控制单元，用于从时钟时间t0到时钟时间t0 +Δt计算每个组的发光元件的发热量。 控制单元基于从时钟时间t0到时钟时间t0 +Δt的发热量和时钟时间t0的温度来计算时钟时间t0 +Δt处的每个组的温度。
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公开(公告)号：US20190064733A1
公开(公告)日：2019-02-28
申请号：US15902563
申请日：2018-02-22
Applicant: Konica Minolta, Inc.
Inventor： Hidenari TACHIBE , Akira TANIYAMA , Takafumi YUASA
Abstract: A print head includes a platform with a face whose portion covered with a heat conductor includes a heat release section, which is deformed relative to a substantially flat portion of the face of the platform to be located at a smaller distance from the surface of the chip in a direction normal to the face at a side near to the light emission area in the longitudinal direction of the light source panel than at another side far from the light emission area. Alternatively, the heat conductor, when disconnected from the face of the platform, is thicker at a side near to the light emission area in the longitudinal direction of the light source panel than at another side far from the light emission area.
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公开(公告)号：US20170168413A1
公开(公告)日：2017-06-15
申请号：US15352884
申请日：2016-11-16
Applicant: KONICA MINOLTA, INC.
Inventor： Takaki UEMURA , So YANO , Masayuki IIJIMA , Takahiro MATSUO , Akira TANIYAMA
IPC: B41J2/385
CPC classification number: G03G15/043 , G03G15/04054
Abstract: An optical writing device including: a current-driven light-emitting element; a thin film transistor configured to supply the light-emitting element with a drive current based on a luminance signal to put the light-emitting element in an on state; and a controller configured to, for each line of an image page, correct a first value of the luminance signal to yield a second value of the luminance signal, and to supply the thin film transistor with the luminance signal at the second value. The second value compensates for a light amount fluctuation of the light-emitting element that is dependent upon an emission/non-emission history, from an initial line of the image page to the line, of a first continuous period where the light-emitting element is kept in the on state and a second continuous period where the light-emitting period is kept in an off state.
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