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公开(公告)号：US11480887B2
公开(公告)日：2022-10-25
申请号：US17341741
申请日：2021-06-08
发明人： Shingo Yoshida , Tatsuya Kobayashi
IPC分类号： G03G15/043 , G02B27/00 , G03G21/00
摘要： An optical scanning device includes a housing that houses an optical system for generating a light ray for optical scanning, and has a dustproof glass for emitting the light ray to an outside, and a cleaning system that is assembled to the housing and cleans the dustproof glass. The cleaning system includes a cleaning member, and a holder that holds the cleaning member, and with the holder moved in a specified movement direction relative to the dustproof glass, the cleaning member cleans the dustproof glass. The cleaning member includes a cleaner member that is adapted to contact a surface of the dustproof glass, and a pressing member that has a pressing surface for pressing the cleaner member toward the dustproof glass and is formed of an elastic body. In the movement direction, a width of the cleaner member is wider than a width of the pressing surface.
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公开(公告)号：US10852656B2
公开(公告)日：2020-12-01
申请号：US16695581
申请日：2019-11-26
发明人： Shingo Yoshida
摘要： An optical deflector is configured such that a distance between a circumscribed circle of a rotary polyhedron centered on an axis of the rotary polyhedron and an inner peripheral surface of a peripheral wall of a cover member in a radial direction of the rotary polyhedron is largest at both of circumferential ends of an opening of the cover member.
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公开(公告)号：US20150346482A1
公开(公告)日：2015-12-03
申请号：US14724717
申请日：2015-05-28
CPC分类号： G03G15/0435 , G02B26/105 , G02B26/12 , G02B26/123 , G02B26/124 , G02B27/0018 , G03G15/011 , G03G15/04036 , G03G15/04045 , G03G15/04072 , G03G2215/0402 , G03G2215/0404 , G03G2215/0407
摘要： An optical scanning device includes a light source, a scanning member, a converging lens, a first aperture, a second aperture, and a support member. The first aperture is provided between the converging lens and the scanning member and includes a first opening portion configured to restrict a beam path width in a main scanning direction of the laser beams emitted from the light source. The second aperture is provided between the light source and the converging lens and includes a second opening portion and a cylindrical portion. The second opening portion is configured to restrict a beam path width in a sub scanning direction of the laser beams emitted from the light source, and is formed in the cylindrical portion. The support member includes a cylinder supporting portion that pivotably supports the cylindrical portion of the second aperture.
摘要翻译： 光学扫描装置包括光源，扫描构件，会聚透镜，第一孔，第二孔和支撑构件。 第一开口设置在会聚透镜和扫描构件之间，并且包括被配置为限制从光源发射的激光束的主扫描方向上的光束路径宽度的第一开口部。 第二孔设在光源和会聚透镜之间，并包括第二开口部分和圆柱形部分。 第二开口部被配置为限制从光源发射的激光的副扫描方向上的光束路径宽度，并且形成在圆筒部中。 支撑构件包括可枢转地支撑第二孔的圆柱形部分的气缸支撑部分。
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公开(公告)号：US08998372B2
公开(公告)日：2015-04-07
申请号：US14242604
申请日：2014-04-01
发明人： Shingo Yoshida
IPC分类号： B41J29/393 , G03G15/043
CPC分类号： G03G15/0435
摘要： A scanning optical apparatus includes a light beam detection unit, a reference signal generation unit, and a returned light detection unit. The light beam detection unit decides whether the light beam reflected by the reflecting surface of a polygon mirror has entered the BD sensor, through comparison between an output value of the BD sensor and a predetermined first threshold. The reference signal generation unit generates a scan start reference signal in response to the decision that the light beam has entered the BD sensor. The returned light detection unit decides whether the light beam reflected by the reflecting surface has entered the internal light sensor, through comparison between an output value of the internal light sensor and a second threshold corresponding to light beam intensity higher than the intensity of the light beam reflected by the reflecting surface and corresponding to the first threshold.
摘要翻译： 扫描光学装置包括光束检测单元，参考信号生成单元和返回光检测单元。 光束检测单元通过BD传感器的输出值和预定的第一阈值之间的比较来判定由多面镜的反射面反射的光束是否已经进入BD传感器。 参考信号生成单元响应于光束已经进入BD传感器的判定来生成扫描开始基准信号。 返回光检测单元通过比较内部光传感器的输出值和对应于高于光束强度的光束强度的第二阈值来判定反射面反射的光束是否已经进入内部光传感器 由反射面反射并对应于第一阈值。
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公开(公告)号：US08896650B1
公开(公告)日：2014-11-25
申请号：US14267388
申请日：2014-05-01
发明人： Shingo Yoshida
CPC分类号： G02B26/127 , G03G13/04 , G03G15/043
摘要： The calculation unit calculates the time interval between the time at detecting the light beam reflected by the reflective surface of the rotatory polyhedron incident on the BD sensor by the light beam detecting unit and the time at detecting the light beam reflected by the reflective surface incident on the optical sensor in the light source by the return light beam detecting unit. The scan adjusting unit adjusts the luminescence time of the light source for scanning the light beam on the surface to be scanned based on the time interval calculated by the calculation unit.
摘要翻译： 计算单元计算由光束检测单元检测由BD传感器入射的旋转多面体的反射表面反射的光束的时间与检测由入射到其上的反射面反射的光束的时间之间的时间间隔 光源中的光学传感器由返回光束检测单元。 扫描调整单元基于由计算单元计算的时间间隔来调整用于扫描待扫描表面上的光束的光源的发光时间。
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6.发明授权Scanning lens, optical scanning device and image forming apparatus using same 有权扫描透镜，光学扫描装置和使用其的图像形成装置公开(公告)号：US08730512B2
公开(公告)日：2014-05-20
申请号：US13772381
申请日：2013-02-21
发明人： Shingo Yoshida , Issei Nakano , Hideki Okamura
IPC分类号： H04N1/04
CPC分类号： G02B26/10 , G02B26/124 , G02B26/125 , G02B27/4227
摘要： An optical scanning device includes a light source which emits a light beam, a deflector, an incident optical system and one scanning lens. The deflector reflects and deflects/scans the light beam emitted from the light source. The scanning lens includes a first face facing the deflector and a second face on an opposite side to the first face, and performs imaging of the deflected/scanned light beam on a surface to be scanned. In a main scanning cross section, when an angle relative to an optical axis of an incident light beam which enters the scanning lens from the first face is θin, and an angle relative to an optical axis of an outgoing light beam which is output from the second face toward the surface to be scanned is θout, in an entire scanning region, a condition of 0.9
摘要翻译： 光学扫描装置包括发射光束的光源，偏转器，入射光学系统和一个扫描透镜。 偏转器反射和偏转/扫描从光源发射的光束。 扫描透镜包括面向偏转器的第一面和与第一面相反侧的第二面，并且在被扫描的表面上进行偏转/扫描光束的成像。 在主扫描横截面中，当相对于从第一面进入扫描透镜的入射光束的光轴的角度为相对于输出的出射光束的光轴的角度 从第二面朝向要扫描的表面，在整个扫描区域中，满足0.9 <＆amp;
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公开(公告)号：US09298004B2
公开(公告)日：2016-03-29
申请号：US14724717
申请日：2015-05-28
CPC分类号： G03G15/0435 , G02B26/105 , G02B26/12 , G02B26/123 , G02B26/124 , G02B27/0018 , G03G15/011 , G03G15/04036 , G03G15/04045 , G03G15/04072 , G03G2215/0402 , G03G2215/0404 , G03G2215/0407
摘要： An optical scanning device includes a light source, a scanning member, a converging lens, a first aperture, a second aperture, and a support member. The first aperture is provided between the converging lens and the scanning member and includes a first opening portion configured to restrict a beam path width in a main scanning direction of the laser beams emitted from the light source. The second aperture is provided between the light source and the converging lens and includes a second opening portion and a cylindrical portion. The second opening portion is configured to restrict a beam path width in a sub scanning direction of the laser beams emitted from the light source, and is formed in the cylindrical portion. The support member includes a cylinder supporting portion that pivotably supports the cylindrical portion of the second aperture.
摘要翻译： 光学扫描装置包括光源，扫描构件，会聚透镜，第一孔，第二孔和支撑构件。 第一开口设置在会聚透镜和扫描构件之间，并且包括被配置为限制从光源发射的激光束的主扫描方向上的光束路径宽度的第一开口部。 第二孔设在光源和会聚透镜之间，并包括第二开口部分和圆柱形部分。 第二开口部被配置为限制从光源发射的激光的副扫描方向的光束路径宽度，并形成在圆筒部。 支撑构件包括可枢转地支撑第二孔的圆柱形部分的气缸支撑部分。
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8.发明申请公开(公告)号：US20150346630A1
公开(公告)日：2015-12-03
申请号：US14724706
申请日：2015-05-28
CPC分类号： G03G15/04072 , G02B7/003 , G02B26/124 , G02B27/0988 , G03G15/04045
摘要： An optical scanning device includes a first aperture and an adjustment mechanism. The first aperture includes a first opening portion and a first cut portion. The first opening portion restricts a beam path width of a laser beam emitted from a light source. A first blocking member that blocks the laser beam is inserted in a detachable manner in the first cut portion in a direction perpendicular to a longitudinal direction of the first opening portion, at a predetermined position of the first cut portion. The adjustment mechanism is configured to adjust a fixed state of the first aperture.
摘要翻译： 光学扫描装置包括第一孔和调节机构。 第一孔包括第一开口部和第一切口部。 第一开口部分限制从光源发射的激光束的光束路径宽度。 在第一切割部分的预定位置处，阻挡激光束的第一阻挡构件在与第一开口部分的纵向方向垂直的方向上以可拆卸的方式插入到第一切割部分中。 调整机构配置成调整第一孔的固定状态。
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公开(公告)号：US20140300677A1
公开(公告)日：2014-10-09
申请号：US14242604
申请日：2014-04-01
发明人： Shingo Yoshida
IPC分类号： G03G15/043
CPC分类号： G03G15/0435
摘要： A scanning optical apparatus includes a light beam detection unit, a reference signal generation unit, and a returned light detection unit. The light beam detection unit decides whether the light beam reflected by the reflecting surface of a polygon mirror has entered the BD sensor, through comparison between an output value of the BD sensor and a predetermined first threshold. The reference signal generation unit generates a scan start reference signal in response to the decision that the light beam has entered the BD sensor. The returned light detection unit decides whether the light beam reflected by the reflecting surface has entered the internal light sensor, through comparison between an output value of the internal light sensor and a second threshold corresponding to light beam intensity higher than the intensity of the light beam reflected by the reflecting surface and corresponding to the first threshold.
摘要翻译： 扫描光学装置包括光束检测单元，参考信号生成单元和返回光检测单元。 光束检测单元通过BD传感器的输出值和预定的第一阈值之间的比较来判定由多面镜的反射面反射的光束是否已经进入BD传感器。 参考信号生成单元响应于光束已经进入BD传感器的判定来生成扫描开始基准信号。 返回光检测单元通过比较内部光传感器的输出值和对应于高于光束强度的光束强度的第二阈值来判定反射面反射的光束是否已经进入内部光传感器 由反射面反射并对应于第一阈值。
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10.发明申请SCANNING LENS, OPTICAL SCANNING DEVICE AND IMAGE FORMING APPARATUS USING SAME 有权扫描镜头，光学扫描装置和使用它的图像形成装置公开(公告)号：US20130222863A1
公开(公告)日：2013-08-29
申请号：US13772381
申请日：2013-02-21
发明人： Shingo Yoshida , Issei Nakano , Hideki Okamura
IPC分类号： G02B26/10
CPC分类号： G02B26/10 , G02B26/124 , G02B26/125 , G02B27/4227
摘要： An optical scanning device includes a light source which emits a light beam, a deflector, an incident optical system and one scanning lens. The deflector reflects and deflects/scans the light beam emitted from the light source. The scanning lens includes a first face facing the deflector and a second face on an opposite side to the first face, and performs imaging of the deflected/scanned light beam on a surface to be scanned. In a main scanning cross section, when an angle relative to an optical axis of an incident light beam which enters the scanning lens from the first face is θin, and an angle relative to an optical axis of an outgoing light beam which is output from the second face toward the surface to be scanned is θout, in an entire scanning region, a condition of 0.9
摘要翻译： 光学扫描装置包括发射光束的光源，偏转器，入射光学系统和一个扫描透镜。 偏转器反射和偏转/扫描从光源发射的光束。 扫描透镜包括面向偏转器的第一面和与第一面相反侧的第二面，并且在被扫描的表面上进行偏转/扫描光束的成像。 在主扫描横截面中，当从第一面进入扫描透镜的入射光束的相对角度相对于从第一面输出的出射光束的光轴的角度 要扫描的表面的第二面是θout，在整个扫描区域中满足0.9的条件。
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