公开(公告)号：US09983468B2

公开(公告)日：2018-05-29

申请号：US15189166

申请日：2016-06-22

Applicant: CASIO COMPUTER CO., LTD.

Inventor： Hiroshi Ogino

IPC: G03B21/20 ,  H04N9/31 ,  G03B33/04

CPC classification number: G03B21/2013 ,  G03B21/2033 ,  G03B21/204 ,  G03B33/04 ,  H04N9/3164

Abstract: To provide a light source unit which can be formed compact in size while contributing to enhancement in luminance and a projector including this light source unit, there is provided a light source unit including a first light source which emits light in a range of first wavelengths, and a second light source which emits light in a range of second wavelengths which is different from the range of first wavelengths, wherein the first light source and the second light source each include a long wavelength light emitting portion and a short wavelength light emitting portion, the long wavelength light emitting portion emitting, of lights of different wavelengths which exist in a range of light wavelengths producing light of similar colors, light of a long wavelength, the short wavelength light emitting portion emitting light of a short wavelength.

公开(公告)号：US20170248837A1

公开(公告)日：2017-08-31

申请号：US15393642

申请日：2016-12-29

Applicant: CASIO COMPUTER CO., LTD.

Inventor： Makoto Sato ,  Hiroshi Ogino ,  Osamu Umamine

IPC: G03B21/20 ,  G02B26/00 ,  H04N9/31 ,  G02B27/14

CPC classification number: G03B21/2013 ,  G02B19/0028 ,  G02B19/0057 ,  G02B26/008 ,  G02B27/0905 ,  G02B27/141 ,  G03B21/204 ,  G03B21/2066 ,  G03B33/12 ,  H04N9/3114

Abstract: A light source unit according to an embodiment has a first light source which emits light in a first wavelength range, a second light source which emits light in a second wavelength range which differs from the light in the first wavelength range, a dichroic mirror to which the light in the first wavelength range and the light in the second wavelength range are incident from directions which differ from each other and which reflects or transmits the light in the first wavelength range and the light in the second wavelength range, and an optical device which is disposed on an optical path between the dichroic mirror and the second light source, and the optical device is a spectral member to which a coating is applied which transmits the light in the second wavelength range and reflects or absorbs the light in the first wavelength range.

公开(公告)号：US09325955B2

公开(公告)日：2016-04-26

申请号：US14194025

申请日：2014-02-28

Applicant: CASIO COMPUTER CO., LTD.

Inventor： Hiroshi Ogino ,  Masahiro Ogawa

IPC: H04N9/31 ,  F21V13/14 ,  F21V14/08 ,  G03B21/20

CPC classification number: H04N9/3111 ,  G03B21/2066 ,  H04N9/3152

Abstract: A light source apparatus includes an optical plate, a convergence optical system, a transfer optical system and two casting optical systems. The optical plate includes a translucent segment and a fluorescent substance layer. The convergence optical system converges an excitation light to the translucent segment and to the fluorescent substance layer. The transfer optical system transfers a spot of the excitation light to a transfer plane of the optical plate. The first casting optical system projects a light source image of fluorescence, which is formed on the fluorescent substance layer, onto a common casting plane. The second casting optical system which projects the spot of the excitation light onto the common casting plane. Optical path lengths of the two casting optical systems are the same.

Abstract translation: 光源装置包括光学板，会聚光学系统，传输光学系统和两个铸造光学系统。 光学板包括半透明部分和荧光物质层。 会聚光学系统将激发光会聚到透光部分和荧光物质层。 传输光学系统将激发光的点传送到光学板的传送平面。 第一铸造光学系统将形成在荧光物质层上的荧光的光源图像投影到共同的铸造平面上。 将激发光斑点投射到普通铸造平面上的第二铸造光学系统。 两个铸造光学系统的光路长度相同。