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1. 发明授权

US09641714B2 Light guide and image reading apparatus 有权
公开(公告)号：US09641714B2
公开(公告)日：2017-05-02
申请号：US14766677
申请日：2014-02-14
申请人： MITSUBISHI ELECTRIC CORPORATION
发明人： Taku Matsuzawa , Kosaku Yamagata , Tadashi Minobe , Yasuhiro Nakamura , Hiroyuki Kawano
IPC分类号： H04N1/04 , H04N1/028 , G02B27/09 , H04N1/00 , F21V8/00 , G06K9/00 , G02B3/06
CPC分类号： H04N1/02855 , G02B3/06 , G02B6/0008 , G02B6/001 , G02B27/0994 , G06K9/00087 , H04N1/00167 , H04N1/00188 , H04N1/028 , H04N1/04 , H04N2201/03125 , H04N2201/03137 , H04N2201/03145
摘要： A light guide including a light scattering portion that reflects light guided inside the light guide, and a light emitting surface portion emitting light reflected by the light scattering portion to outside the light guide. A light emitting surface portion includes first and second light emitting surface portions, the first light emitting surface portion has a longer circumferential length than that of the second light emitting surface portion in the transversal cross section, and circumference curvature of the first light emitting surface portion in the transversal cross section increases away from the second light emitting surface portion. A normal line to the light scattering portion, passing through the center of the light scattering portion in the transversal cross section, intersects with the first light emitting surface portion, at a point at a near side to the second light emitting surface portion in the transversal cross section.

2. 发明授权

US10674030B2 Illumination device and image reading device 审中-公开
公开(公告)号：US10674030B2
公开(公告)日：2020-06-02
申请号：US16475445
申请日：2018-02-21
申请人： Mitsubishi Electric Corporation
发明人： Taku Matsuzawa , Toru Shiraki , Hideki Kunishio , Daisuke Ohama
IPC分类号： H04N1/04 , H04N1/028 , G02B6/00 , G03B27/54
摘要： An illumination device includes a light source and a rod-like light guide extending in a longitudinal direction for guiding incident light to an object to be illuminated. The light source is disposed at an end of the light guide extending in a longitudinal direction. The light guide includes an incident surface at the longitudinal end to receive light emitted from the light source, a flat emission surface to emit light incident on the light guide toward the object to be illuminated, a parabolic reflective surface to reflect, toward the emission surface, light from a focus of the paraboloid shape of the refractive surface or light passing through the focus from a predetermined area, and a light-scattering portion, having a predetermined area, to scatter light entering through the incident surface and reflect the light toward the reflective surface. The light-scattering portion is placed at the focus of the paraboloid shape or at a position where light reflected by the scattering area on the light-scattering portion passes through the focus.

3. 发明授权

US11057535B2 Light guide and image scanning device 有权
公开(公告)号：US11057535B2
公开(公告)日：2021-07-06
申请号：US16771911
申请日：2019-04-16
申请人： Mitsubishi Electric Corporation
发明人： Taku Matsuzawa , Toru Shiraki , Daisuke Ohama , Yuki Okuhigashi
IPC分类号： H04N1/04 , H04N1/028 , F21V8/00
摘要： A light guide includes an incident surface provided at an end portion of the light guide in the longitudinal direction and upon which light emitted by a light source incidents; an emission surface being flat-shaped, the emission surface emitting the light that enters the light guide through the incident surface to an illumination target; a reflective surface having a parabolic shape to generate collimated light directed toward the emission surface by reflecting light from a focal point of the parabolic shape or light from a predetermined area including the focal point, and a light scatterer having a predetermined scattering area to scatter light that entered the light guide through the incident surface and reflect light that entered the light guide through the incident surface in a direction of the reflective surface. The emission surface includes a first emission surface that has a predetermined length from an end portion of the light guide facing the light source along the longitudinal direction, the emission surface being set to an angle at which, among the light scattered by the light scatterer, the collimated light generated by the reflective surface is totally reflected.

4. 发明授权

US10911632B2 Image scanning device 有权
公开(公告)号：US10911632B2
公开(公告)日：2021-02-02
申请号：US16824962
申请日：2020-03-20
申请人： Mitsubishi Electric Corporation
发明人： Taku Matsuzawa , Daisuke Ohama , Akira Daijogo
IPC分类号： H04N1/04 , H04N1/12 , F21V8/00 , G02B5/02
摘要： An image scanning device includes a linear light source to illuminate a linear illumination position of a scan target with light, a lens body, and a sensor. The linear light source includes a light guide, a scatterer, an emitter, a stepped portion, and a light-shielding member. The stepped portion is formed, from the end surface of the transparent body along the main scan direction, on a side of the light guide that is opposite to the illumination position side of the light guide. The light-shielding member covers a portion of the emitter of the light guide, the portion including the end surface of the transparent body, and extends beyond the stepped portion in the main scan direction and has an end portion that is located out of a scan range of the sensor in the main scan direction.

5. 发明授权

US10536603B2 Light guide and image reading apparatus 有权
公开(公告)号：US10536603B2
公开(公告)日：2020-01-14
申请号：US16319527
申请日：2018-01-17
申请人： Mitsubishi Electric Corporation
发明人： Taku Matsuzawa , Toru Shiraki , Hideki Kunishio , Daisuke Ohama
IPC分类号： H04N1/04 , H04N1/028 , F21V8/00
摘要： An objective of the present disclosure is to obtain a light guide and an image reading apparatus capable of efficiently irradiating an object to be irradiated (1). The light guide and the image reading apparatus include a rod-shaped light guide main body (2) extending in the longitudinal direction, a first end face (3) that is an end face of the light guide main body (2) along the transverse direction, a light scattering pattern (5) that scatters light that enters from the first end face (3) and is guided inside the light guide main body (2), and a light emission surface portion (6) formed on the light guide main body along a longitudinal direction, the light emission surface portion (6) being a surface from which the light scattered at the light scattering pattern (5) is emitted to outside the light guide main body (2) after being reflected on a wall surface of the light guide main body (2).The light emission surface portion (6) includes a first light emission surface (6a) that is disposed near the first end face (3) in the longitudinal direction and a second light emission surface (6b) that is contiguous with the first light emission surface (6a) in the longitudinal direction. A width of the first light emission surface (6a) in the transverse direction is shorter than a width of the second light emission surface (6b) in the transverse direction.

6. 发明授权

US10027846B2 Light guide body, light source device and image reading device 有权
公开(公告)号：US10027846B2
公开(公告)日：2018-07-17
申请号：US15549393
申请日：2016-02-19
申请人： Mitsubishi Electric Corporation
发明人： Fumika Oshiyama , Taku Matsuzawa , Toru Aramaki
IPC分类号： H04N1/04 , H04N1/40 , G02B6/10 , G02B6/00
摘要： A light guide body (2) includes a light guide main body (21), a band region (4), and radial microstructures (5). The light guide main body (21) is columnar, and light enters the light guide main body (21) from at least one end portion (3). The band region (4) is formed extending in the lengthwise direction of a portion of a circumferential surface of the light guide main body (21). The radial microstructures (5) are arranged in the band region (4) and are formed as microstructures that each have protruding parts extending radially in at least three directions in a band region portion from a reference point.

7. 发明授权

US09462150B2 Image read-in device with fastener to fasten transparent member retaining lens array assembly and light shield to board 有权
标题翻译：具有紧固件的图像读入装置，用于固定透明构件保持透镜阵列组件和遮光板
公开(公告)号：US09462150B2
公开(公告)日：2016-10-04
申请号：US14649758
申请日：2013-11-28
申请人： MITSUBISHI ELECTRIC CORPORATION
发明人： Taku Matsuzawa , Akira Ota , Daisuke Ohama , Hajime Nakajima , Hiroyuki Kawano , Sadaaki Yoshioka
IPC分类号： H04N1/028 , G03B27/54 , H04N1/04
CPC分类号： H04N1/0286 , G03B27/54 , H04N1/028 , H04N1/0281 , H04N1/0285 , H04N1/02865 , H04N1/0289 , H04N1/02895 , H04N1/04 , H04N2201/0081
摘要： An image reader configured to read an image of an object-to-be-read includes: a board, a line sensor assembly including a plurality of photosensitive elements formed on one surface of the board along a main scanning direction, a lens array assembly including a plurality of lenses arrayed along the main scanning direction, and configured to focus the reflected light onto the line sensor assembly, a light shield configured to support a portion of the lens array assembly at the line-sensor-assembly side or to be in contact with the portion of the lens array assembly at the line-sensor-assembly side, and to block light other than the light focused by the lens array assembly, and a transparent member made of transparent material, formed with a retainer space where the lens array assembly and the light shield are retained, and covering a portion of the lens array assembly at the object-to-be-read side and the light shield.
摘要翻译：被配置为读取待读物的图像的图像读取器包括：板，线传感器组件，其包括沿着主扫描方向形成在所述板的一个表面上的多个感光元件，所述透镜阵列组件包括沿着主扫描方向排列的多个透镜，并且被配置为将反射光聚焦到线传感器组件上;遮光罩，被配置为支撑透镜阵列组件在线传感器组件侧的一部分或与之接触透镜阵列组件的一部分在线传感器组装侧，并且阻挡除了由透镜阵列组件聚焦的光之外的光，以及由透明材料制成的透明构件，其形成有保持空间，其中透镜阵列组件和遮光罩被保持，并且覆盖在被检体侧的透镜阵列组件的一部分和遮光罩。

8. 发明授权

US09946009B2 Light guide, light source device, and image reading device 有权
公开(公告)号：US09946009B2
公开(公告)日：2018-04-17
申请号：US15251219
申请日：2016-08-30
申请人： Mitsubishi Electric Corporation
发明人： Akiko Fujiuchi , Hironobu Arimoto , Taku Matsuzawa
IPC分类号： H04N1/04 , F21V8/00 , H04N1/028 , G02B3/02 , G02B19/00 , G03B15/03
CPC分类号： G02B6/0045 , G02B3/02 , G02B6/0055 , G02B19/0047 , G02B19/0061 , G03B15/03 , H04N1/02825 , H04N1/02835 , H04N1/0284 , H04N2201/0081
摘要： A light guide includes a first exit portion emitting first exiting light, a second exit portion emitting second exiting light in a different direction than the first exiting light, and a reflecting portion reflecting light entering the light guide to each of the first and second exit portions. The first and second exit portions respectively have first and second curved surfaces each having a convex cross section perpendicular to the long axis direction. The second exit portion is connected to the first exit portion in the direction perpendicular to the long axis direction. The reflecting portion is provided, in a plane facing the first exit portion and the second exit portion, at a position shifted in the direction perpendicular to the long axis direction from a position where a normal to the plane passes through a connection portion between the first and second exit portions.

9. 发明授权

US09841549B2 Light guide, light source device, and image reading device 有权
公开(公告)号：US09841549B2
公开(公告)日：2017-12-12
申请号：US14651309
申请日：2013-12-13
申请人： Mitsubishi Electric Corporation
发明人： Akiko Fujiuchi , Hironobu Arimoto , Taku Matsuzawa
IPC分类号： H04N1/04 , F21V8/00 , H04N1/028 , G02B3/02 , G02B19/00 , G03B15/03
CPC分类号： G02B6/0045 , G02B3/02 , G02B6/0055 , G02B19/0047 , G02B19/0061 , G03B15/03 , H04N1/02825 , H04N1/02835 , H04N1/0284 , H04N2201/0081
摘要： A light guide includes a first exit portion emitting first exiting light, a second exit portion emitting second exiting light in a different direction than the first exiting light, and a reflecting portion reflecting light entering the light guide to each of the first and second exit portions. The first and second exit portions respectively have first and second curved surfaces each having a convex cross section perpendicular to the long axis direction. The second exit portion is connected to the first exit portion in the direction perpendicular to the long axis direction. The reflecting portion is provided, in a plane facing the first exit portion and the second exit portion, at a position shifted in the direction perpendicular to the long axis direction from a position where a normal to the plane passes through a connection portion between the first and second exit portions.

10. 发明申请

US20150249104A1 IMAGE SENSOR DEVICE 有权
标题翻译：图像传感器设备
公开(公告)号：US20150249104A1
公开(公告)日：2015-09-03
申请号：US14433739
申请日：2013-10-17
申请人： MITSUBISHI ELECTRIC CORPORATION
发明人： Akira Ota , Taku Matsuzawa
IPC分类号： H01L27/146 , G01J1/42
CPC分类号： H01L27/14629 , G01J1/42 , G03B27/54 , G07D7/12 , G07D7/121 , H04N1/028 , H04N1/02835 , H04N1/0318 , H04N1/04 , H04N1/1215 , H04N1/2034 , H04N2201/03112 , H04N2201/0312 , H04N2201/03125 , H04N2201/03133 , H04N2201/03141 , H04N2201/03145
摘要： An image sensor and image sensor device include: a lighting portion extending in a main scanning direction and emitting light to the object-to-be-read; a rod lens array for imaging light from the object-to-be-read; and a light receiving portion for converting the light imaged by the rod lens array to an electric signal. The lighting portion emits a normally directed light from the normal direction of the object-to-be-read to irradiate a first irradiation region of the object-to-be-read, and an inclined light inclined by a predetermined angle from the normal direction of the object-to-be-read to irradiate a second irradiation region being apart from the first irradiation region in a sub-scanning direction.
摘要翻译：图像传感器和图像传感器装置包括：照射部，其在主扫描方向上延伸并将光发射到被读取对象; 用于对来自待读物的光成像的棒状透镜阵列; 以及用于将由杆状透镜阵列成像的光转换成电信号的光接收部。照明部从正在读取的物体的法线方向射出正射的光，照射待读取对象的第一照射区域和从法线方向倾斜规定角度的倾斜光的待读取对象物以沿副扫描方向照射与第一照射区域分开的第二照射区域。

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