公开(公告)号：US20160360166A1

公开(公告)日：2016-12-08

申请号：US15063231

申请日：2016-03-07

Applicant: CASIO COMPUTER CO., LTD.

Inventor： Masahiro OGAWA

IPC: H04N9/31 ,  G02B5/02 ,  G02B26/00

CPC classification number: H04N9/3158 ,  G02B5/0278 ,  G02B26/008 ,  G03B21/204 ,  H04N9/3114 ,  H04N9/3161

Abstract: A projector includes alight source unit including a light source, a luminescent wheel having light source segments receiving light from the light source to emit different wavelength ranges of light, a color wheel separate from the luminescent wheel that has a first transmission area transmitting light, in visible light, existing in a certain range of wavelengths and a second transmission area transmitting light existing in a range of wavelengths broader than that of the light transmitted through the first transmission area and on to which the different wavelength ranges of light from the luminescent wheel are shone, and a control module controlling not only the luminescent wheel and the color wheel so that they are synchronized with each other but also the light source so that the light emitted from the light source is sequentially shone on to the light source segments.

Abstract translation: 一种投影仪，包括光源单元，包括光源，发光轮，其具有从光源接收光以发射不同波长范围的光的发光轮;与具有透射光的第一透射区域的发光轮分开的色轮， 存在于一定波长范围内的可见光和第二透射区域，其透射存在于比透过第一透射区域的光的波长宽的波长范围内的光，并且来自发光轮的光的不同波长范围 并且控制模块不仅控制发光轮和色轮，使得它们彼此同步，而且控制光源，使得从光源发射的光顺序地照射到光源段上。

公开(公告)号：US20150029467A1

公开(公告)日：2015-01-29

申请号：US14336892

申请日：2014-07-21

Applicant: CASIO COMPUTER CO., LTD.

Inventor： Chihaya SUGIYAMA ,  Masahiro OGAWA

IPC: H04N9/31 ,  F21V14/08 ,  F21V29/02 ,  F21V9/10 ,  F21V8/00

CPC classification number: H04N9/3161 ,  G02B6/0001 ,  G03B21/16 ,  G03B21/2013 ,  G03B21/204 ,  H04N9/3111 ,  H04N9/3158 ,  H04N9/3164

Abstract: A small light source unit is provided which emits lights of the primary colors which are highly bright and which have a high color reproducibility and excitation light, and the light source unit includes a light source module and a light source control module and the light source module has a first light source which emits light having a first wavelength which is used as excitation light which excites a luminescent material, and a second light source which emits light having a second wavelength which is different from the first wavelength but which falls within a range of wavelengths of light of a similar color to that of the light of the first light source, and the light source control module controls individually the illumination of the first light source and the second light source.

Abstract translation: 提供一种小型光源单元，其发射高亮度且具有高色彩再现性和激发光的原色的光，并且光源单元包括光源模块和光源控制模块以及光源模块 具有第一光源，其发射具有第一波长的光，其被用作激发发光材料的激发光;以及第二光源，其发射具有与第一波长不同但第二波长不同于第一波长的光的第二波长 与第一光源的光的颜色相似的光的波长，以及光源控制模块分别控制第一光源和第二光源的照明。

公开(公告)号：US20230092862A1

公开(公告)日：2023-03-23

申请号：US17944781

申请日：2022-09-14

Applicant: CASIO COMPUTER CO., LTD.

Inventor： Masahiro OGAWA

IPC: H04N9/77 ,  H04N9/31

Abstract: A projecting system includes an image projector that includes an optical source and that projects an image on a projected surface; and a processor. The processor obtains brightness information regarding brightness around the projected surface. The processor selects at least one item among a total luminous flux of the optical source, a color gamut of the image, and a size of the image. The processor adjusts the item that is selected based on the brightness information.

公开(公告)号：US20210282247A1

公开(公告)日：2021-09-09

申请号：US17190580

申请日：2021-03-03

Applicant: CASIO COMPUTER CO., LTD.

Inventor： Masahiro OGAWA

IPC: H05B47/155 ,  G02B26/00 ,  G03B21/20 ,  H05B47/16

Abstract: A light source unit includes a first light source for first light, a second light source for second light differing from the first light, a display device for performing a gradation control on the first light and the second light which are emitted in a time dividing fashion in corresponding gradation control periods to thereby form image light, and a processor configured to control a first dimming mode for adjusting a quantity of light of the first light source in the gradation control periods of the first light and the second light and a second dimming mode for adjusting the quantity of light of the first light source by performing a turn-off control in at least a partial period of the gradation control period of the first light and adjusting the quantity of light of the first light source in the gradation control period of the second light.

公开(公告)号：US20190294036A1

公开(公告)日：2019-09-26

申请号：US16359816

申请日：2019-03-20

Applicant: CASIO COMPUTER CO., LTD.

Inventor： Masahiro OGAWA

IPC: G03B21/20 ,  H04N9/31

Abstract: A light source device includes a light emitting element emitting light of a first wavelength band, a fluorescent wheel, a dichroic mirror, a reflection member and a polarization conversion element. The fluorescent wheel includes a fluorescent area converting the light of the first wavelength band into fluorescent light and a transmission area transmitting the light of the first wavelength band. The dichroic mirror reflects the light of the first wavelength band a first polarization direction, transmits the light in a second polarization direction, and transmits or reflects the fluorescent light. The reflection member reflects the light transmitted through the transmission area toward the transmission area. The polarization conversion element is disposed between the fluorescent wheel and the reflection member, transmits the lights transmitted through the transmission area and reflected by the reflection member, and converts the light in the first polarization direction into the second polarization direction.

公开(公告)号：US20190025683A1

公开(公告)日：2019-01-24

申请号：US16133008

申请日：2018-09-17

Applicant: CASIO COMPUTER CO., LTD.

Inventor： Masahiro OGAWA

IPC: G03B21/20 ,  F21K9/64 ,  G02B5/20 ,  G02B26/00 ,  G03B33/08 ,  F21Y115/10 ,  F21Y115/30 ,  G03B21/28 ,  G03B21/00

Abstract: A light source unit includes a first light source for emitting light in a first wavelength range, a luminescent wheel including a second light source for emitting light in a second wavelength range and a third light source for emitting light in a third wavelength range whose wavelength differs from that of the light in the second wavelength range, which are disposed circumferentially end to end in an adjacent fashion, a fourth light source for emitting light in a fourth wavelength range similar in color system to the light in the second or third wavelength range, and a control unit for controlling the fourth light source and the luminescent wheel to illuminate the fourth light source during a first color mixing period when a boundary between the second and third light sources is situated on an optical path of the light in the first wavelength range.

公开(公告)号：US20150062543A1

公开(公告)日：2015-03-05

申请号：US14469812

申请日：2014-08-27

Applicant: CASIO COMPUTER CO., LTD.

Inventor： Masahiro OGAWA

IPC: F21K99/00 ,  G03B21/20 ,  F21V9/10

CPC classification number: G03B21/204 ,  G03B33/06

Abstract: A light source unit includes a solid light emitting element that emits light in the blue wavelength range, a luminous light emitting portion on which a luminescent material layer is laid out, the luminescent material layer using the light emitted from the solid light emitting element as excitation light to emit light in a wavelength range of which wavelengths are longer than a wavelength of the excitation light, and a light transmitting portion that transmits the light emitted from the solid light emitting element, and an area of a luminescent material that emits luminous light in the green wavelength range is provided at part of the light transmitting portion.

Abstract translation: 光源单元包括发射蓝色波长范围的光的固体发光元件，布置发光材料层的发光部分，使用从固体发光元件发射的光作为激发的发光材料层 光在其波长比激发光的波长长的波长范围内发光;以及透光部，其透射从固体发光元件发射的光和发光的发光材料的区域 绿色波长范围设置在透光部分的一部分。