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公开(公告)号：US20160370205A1
公开(公告)日：2016-12-22
申请号：US15255140
申请日：2016-09-02
Inventor： TSUTOMU YOSHIKAWA
CPC classification number: G01D5/20 , G01D5/145 , H04N5/23264
Abstract: The position detecting device includes a permanent magnet unit having magnetic pole areas of N-pole and S-pole in a surface thereof, and a magnetic detection device apart from the surface by a distance. The permanent magnet unit has a main magnet element, and an auxiliary magnet element that is located closer to the magnetic detection device. The auxiliary magnet element has an N-pole auxiliary magnet part with the N-pole in the side of the surface and an S-pole auxiliary magnet part with the S-pole in the side of the surface. The main magnet element has an N-pole main magnet part on a side of the N-pole auxiliary magnet part and an S-pole main magnet part on a side of theS-pole auxiliary magnet part. The magnetic detection device is relatively movable in a direction tilted with respect to an area boundary plane that separates magnetic poles of a magnetic field generated by the permanent magnet unit, while keeping the distance. The N-pole auxiliary magnet part and the S-pole auxiliary magnet part are disposed apart from each other by a gap, and the gap is larger than a gap between the N-pole main magnet part and the S-pole main magnet part.
Abstract translation: S极辅助磁铁部件。 磁性检测装置在相对于分离由永磁体单元产生的磁场的磁极的区域边界面倾斜的方向上相对移动，同时保持距离。 N极辅助磁体部和S极辅助磁体部通过间隙彼此分离配置，间隙大于N极主磁体部与S极主磁体部之间的间隙。
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Patent Agency Ranking
公开(公告)号：US20190146314A1
公开(公告)日：2019-05-16
申请号：US16149395
申请日：2018-10-02
Inventor： TSUTOMU YOSHIKAWA
Abstract: The phosphor wheel in the present disclosure includes a disk-shaped member that is rotated about a rotation axis, and a phosphor layer disposed on one face of the disk-shaped member. The disk-shaped member has a hollow-box structure that forms an enclosed space. A coolant is sealed in the enclosed space. The coolant evaporates to a gas state from a liquid state at more than or equal to predetermined temperature. In the liquid state, a volume of the coolant is smaller than a capacity of the enclosed space. The present disclosure further provides a light conversion device including the phosphor wheel of the present disclosure.
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3.发明申请公开(公告)号：US20180224731A1
公开(公告)日：2018-08-09
申请号：US15946748
申请日：2018-04-06
Inventor： TSUTOMU YOSHIKAWA
CPC classification number: G03B21/16 , G02B5/20 , G02B26/008 , G02B27/0994 , G02B27/141 , G03B21/14 , G03B21/204 , G03B21/2066 , G03B21/208 , H04N5/74
Abstract: The phosphor wheel device includes a phosphor wheel, a circulation fan, a motor and a casing unit. The phosphor wheel is disc-shaped, and includes an annular phosphor layer formed on a first face and a plurality of openings disposed on an inner circumferential side. The circulation fan is mounted to a second face opposite to the first face, and blows air through the openings to the phosphor layer side. The motor drives and rotates the phosphor wheel and the circulation fan. The casing unit accommodates the phosphor wheel, the circulation fan, and the motor, and includes a circulation path formed for an airflow generated by the circulation fan to circulate. The casing unit includes an outer cylindrical portion and an inner cylindrical portion disposed substantially concentrically inside the outer cylindrical portion. Both ends of the outer cylindrical portion communicate with both ends of the inner cylindrical portion.
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公开(公告)号：US20160041365A1
公开(公告)日：2016-02-11
申请号：US14922837
申请日：2015-10-26
Inventor： KENJI IKEO , TSUTOMU YOSHIKAWA , MASAHIRO INATA , HIDEO ONISHI
CPC classification number: G02B7/105 , G02B7/08 , G02B7/09 , G02B7/102 , G02B27/0006
Abstract: A lens barrel: an optical system; a focusing manipulation unit capable of changing a focal position of the optical system in a normal photographing area and in a macro photographing area where the focal position can be changed for an object located at a position shorter than a shortest distance position of the normal photographing area; a photographing mode switching unit for switching between a normal photographing mode and a macro photographing mode; and an index ring having a normal scale and a macro scale, the normal scale indicating an object distance in the normal photographing mode, and the macro scale indicating the object distance in the macro photographing mode. Then, the photographing mode switching unit switches a display position of the index ring between the normal scale and the macro scale, and the focusing manipulation unit changes the focal position displayed on the index ring by rotation manipulation.
Abstract translation: 镜筒：光学系统; 聚焦操作单元，其能够改变正常拍摄区域中的光学系统的焦点位置，并且可以在位于比普通拍摄区域的最短距离位置短的位置处可以改变焦点位置的微距拍摄区域 ; 拍摄模式切换单元，用于在正常拍摄模式和宏拍摄模式之间切换; 以及具有正常刻度和宏观尺度的索引环，所述正常刻度指示在正常拍摄模式中的对象距离，以及指示所述宏拍摄模式中的对象距离的宏观尺度。 然后，拍摄模式切换单元切换标准刻度和宏观尺度之间的折射环的显示位置，聚焦操作单元通过旋转操作改变在索引环上显示的焦点位置。
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公开(公告)号：US20180088317A1
公开(公告)日：2018-03-29
申请号：US15817336
申请日：2017-11-20
Inventor： TSUTOMU YOSHIKAWA
Abstract: A light conversion device includes a phosphor wheel, a circulation fan, a motor, a casing unit, and a heat absorber. The phosphor wheel has a first side on which a phosphor layer is formed. The circulation fan blows an air flow to the phosphor layer. The motor rotatably drives the phosphor wheel. The casing unit houses the phosphor wheel, the circulation fan, and the motor. In the casing unit, a circulation path of the air flow created by the circulation fan is formed. The heat absorber is in the shape of a cylinder. The heat absorber includes a fin structure including a plurality of fins arranged along a radial direction of the casing unit and provided so as to extend in a height direction of the cylinder. The air flow is supplied to the heat absorber to cool the air flow that has absorbed heat generated at the phosphor layer.
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公开(公告)号：US20160093428A1
公开(公告)日：2016-03-31
申请号：US14859230
申请日：2015-09-18
Inventor： TSUTOMU YOSHIKAWA
CPC classification number: H02K41/031 , H01F7/0289 , H01F7/066 , H02K41/0356
Abstract: The periodic magnetic field generator includes a flat-shaped first yoke, and a plurality of main permanent magnets, an auxiliary permanent magnet, and a side permanent magnet on the first yoke. The plurality of main permanent magnets are magnetized in a first direction of generating magnetic fields, the direction being perpendicular to the first yoke, and disposed such that orientations of the magnetization become opposite alternately in the first direction. The auxiliary permanent magnet is magnetized in a second direction perpendicular to side faces of the plurality of main permanent magnets, and placed between the side faces of the main permanent magnets. The side permanent magnet is magnetized in a third direction perpendicular to the first direction, and disposed so as to cover end faces of the main permanent magnets and the auxiliary permanent magnet, the end faces being perpendicular to the side faces of the main permanent magnets.
Abstract translation: 周期磁场发生器包括平板状的第一磁轭，以及在第一磁轭上的多个主永磁体，辅助永久磁铁和侧面永久磁铁。 多个主永磁体在产生磁场的第一方向上被磁化，该方向垂直于第一磁轭，并且被设置为使得磁化方向在第一方向上交替变化。 辅助永磁体在垂直于多个主永磁体的侧面的第二方向上被磁化，并且被放置在主永磁体的侧面之间。 侧永磁体在与第一方向垂直的第三方向上被磁化，并且被设置成覆盖主永磁体和辅助永磁体的端面，端面垂直于主永磁体的侧面。
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