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公开(公告)号：US09323045B2
公开(公告)日：2016-04-26
申请号：US14172168
申请日：2014-02-04
Applicant: SEIKO EPSON CORPORATION
Inventor： Hidefumi Sakata , Shunji Kamijima , Akira Miyamae , Shuji Narimatsu
CPC classification number: G02B26/008 , F21V9/08 , G02B7/008 , G02B26/007 , G03B21/142 , G03B21/204 , G03B21/28 , G03B33/08 , G03B33/12 , H04N2209/043
Abstract: An illumination device includes: a light source device adapted to emit an excitation light beam; and a rotating fluorescent plate having a single fluorescent layer adapted to convert a part or whole of the excitation light beam into a fluorescent light beam. The fluorescent light beam includes two or more colored light beams, and the single fluorescent layer is formed on a circular disk, which can be rotated by a motor, continuously along a circumferential direction of the circular disk.
Abstract translation: 照明装置包括：适于发射激发光束的光源装置; 以及具有适于将激发光束的一部分或全部转换为荧光光束的单个荧光层的旋转荧光板。 荧光灯包括两个或更多个有色光束，并且单个荧光层形成在圆盘上，圆盘可以通过马达沿着圆盘的圆周方向连续地旋转。
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公开(公告)号：US20170176844A1
公开(公告)日：2017-06-22
申请号：US15346057
申请日：2016-11-08
Applicant: Seiko Epson Corporation
Inventor： Shigekazu Aoki , Akira Egawa , Shunji Kamijima
IPC: G03B21/20 , G02B27/28 , G02B5/30 , G03B21/00 , G02B27/10 , G02B5/02 , G02B19/00 , G03B21/16 , F21K9/64 , G02B27/14
CPC classification number: G03B21/204 , F21K9/64 , F21V9/30 , F21Y2115/30 , G02B5/0284 , G02B5/3083 , G02B19/0009 , G02B27/0905 , G02B27/0961 , G02B27/1006 , G02B27/141 , G02B27/149 , G02B27/283 , G03B21/005 , G03B21/16 , G03B21/2013
Abstract: A wavelength conversion device includes a rotating device and a base member which is rotated by the rotating device. The base member includes a wavelength conversion portion which is disposed in an annular shape on a first surface of the base member, a first region which is located further inside than the wavelength conversion portion, and a second region which is located further outside than the wavelength conversion portion, and is larger in surface area than the first region.
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公开(公告)号：US10451958B2
公开(公告)日：2019-10-22
申请号：US15346057
申请日：2016-11-08
Applicant: Seiko Epson Corporation
Inventor： Shigekazu Aoki , Akira Egawa , Shunji Kamijima
IPC: G03B21/20 , F21K9/64 , G02B19/00 , G02B27/10 , G02B27/14 , G02B27/28 , G02B5/02 , G02B5/30 , G03B21/00 , G03B21/16 , F21V9/30 , G02B27/09 , F21Y115/30
Abstract: A wavelength conversion device includes a rotating device and a base member which is rotated by the rotating device. The base member includes a wavelength conversion portion which is disposed in an annular shape on a first surface of the base member, a first region which is located further inside than the wavelength conversion portion, and a second region which is located further outside than the wavelength conversion portion, and is larger in surface area than the first region.
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公开(公告)号：US10451959B2
公开(公告)日：2019-10-22
申请号：US16048714
申请日：2018-07-30
Applicant: SEIKO EPSON CORPORATION
Inventor： Shunji Kamijima , Wataru Yasumatsu
Abstract: A light source device includes a light emitting element adapted to emit light having a first polarization direction and a first wavelength, a polarization separation element adapted to transmit either one of the light having the first polarization direction and the first wavelength and light having a second polarization direction and the first wavelength, and reflect the other, and transmit or reflect light having a second wavelength to emit the light having the second wavelength toward a same direction as a direction in which the light having the second polarization direction and the first wavelength is emitted, a wavelength conversion element adapted to convert the light having the first wavelength into the light having the second wavelength, and a diffusion optical system disposed on a light path between the polarization separation element and the wavelength conversion element. The diffusion optical system includes a diffusion section and a light separation section.
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