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公开(公告)号：US11019312B2
公开(公告)日：2021-05-25
申请号：US16801321
申请日：2020-02-26
Applicant: CASIO COMPUTER CO., LTD.
Inventor： Hiroki Masuda , Masahiro Ogawa , Osamu Umamine , Tetsuro Narikawa
Abstract: A light source device includes: a first light emitting element that emits first wavelength band light; a fluorescence wheel including a fluorescence emission region with which fluorescence excited by the first wavelength band light is emitted as second wavelength band light; a second light emitting element that emits third wavelength band light; a combining unit that combines the first wavelength band light, the second wavelength band light, and the third wavelength band light; a color wheel; and a CPU that controls the first light emitting element, the second light emitting element, the fluorescence wheel, and the color wheel, wherein the CPU performs synchronization control on the fluorescence wheel and the color wheel, and performs control to shift a synchronization position of the color wheel with respect to the fluorescence wheel in accordance with an output mode.
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公开(公告)号：US11112686B2
公开(公告)日：2021-09-07
申请号：US16546035
申请日：2019-08-20
Applicant: CASIO COMPUTER CO., LTD.
Inventor： Osamu Umamine
Abstract: A light source unit of the invention includes a first light source configured to emit light in a first wavelength range and a wheel in which a first transmitting area is formed, the first transmitting area being configured to transmit light in the first wavelength range incident from a side facing a first surface of the wheel, and the first transmitting area contains a first luminescent material configured to emit first luminescent light including at least a wavelength range of light in the first wavelength range by light in a second wavelength range whose wavelength range differs from that of light in the first wavelength range being shined from a side facing a second surface of the wheel, the second surface being opposite to the first surface.
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公开(公告)号：US09207522B2
公开(公告)日：2015-12-08
申请号：US14030972
申请日：2013-09-18
Applicant: CASIO COMPUTER CO., LTD.
Inventor： Hiroki Masuda , Masahiro Ogawa , Osamu Umamine
CPC classification number: G03B21/142 , F21V9/08 , F21V13/08 , G03B21/2013 , G03B21/204 , G03B21/208 , H04N9/3161
Abstract: The invention includes an excitation light source, a light distribution adjusting member on which excitation light from the excitation light source is incident, and a luminescent material which emits luminous light of a different wavelength from that of the excitation light by the excitation light which passes through the light distribution adjusting member being shone on thereto, wherein the excitation light source is disposed so that the excitation light is incident on a light incident surface of the light distribution adjusting member at a predetermined angle.
Abstract translation: 本发明包括激发光源，来自激发光源的激发光入射的配光调节部件，以及通过激发光通过的发出与激发光不同的波长的发光的发光材料 照射在其上的配光调节构件，其中激发光源被设置为使得激发光以预定角度入射到配光调节构件的光入射表面。
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公开(公告)号：US11460763B2
公开(公告)日：2022-10-04
申请号：US17010437
申请日：2020-09-02
Applicant: CASIO COMPUTER CO., LTD.
Inventor： Osamu Umamine
Abstract: A light source unit includes a first light source configured to emit light in a first wavelength range, a second light source configured to emit light in a first wavelength range, a first dichroic mirror configured to reflect the light in the second wavelength range incident thereon at a first incident angle and transmit the light in the second wavelength range incident thereon at a second incident angle, which is different from the first incident angle, and a second dichroic mirror configured to reflect the light in the second wavelength range that has passed through the first dichroic mirror, wherein after having been reflected by the second dichroic mirror, the light in the second wavelength range is incident on the first dichroic mirror at the first incident angle to then be reflected by the first dichroic mirror.
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Patent Agency Ranking
公开(公告)号：US20200064720A1
公开(公告)日：2020-02-27
申请号：US16546035
申请日：2019-08-20
Applicant: CASIO COMPUTER CO., LTD.
Inventor： Osamu Umamine
Abstract: A light source unit of the invention includes a first light source configured to emit light in a first wavelength range and a wheel in which a first transmitting area is formed, the first transmitting area being configured to transmit light in the first wavelength range incident from a side facing a first surface of the wheel, and the first transmitting area contains a first luminescent material configured to emit first luminescent light including at least a wavelength range of light in the first wavelength range by light in a second wavelength range whose wavelength range differs from that of light in the first wavelength range being shined from a side facing a second surface of the wheel, the second surface being opposite to the first surface.
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公开(公告)号：US12001130B2
公开(公告)日：2024-06-04
申请号：US17898217
申请日：2022-08-29
Applicant: CASIO COMPUTER CO., LTD.
Inventor： Osamu Umamine
CPC classification number: G03B21/204 , G02B26/0816 , G02B27/102 , G02B27/141 , G03B21/2073 , G03B21/208
Abstract: A light source unit includes a first light source configured to emit light in a first wavelength range, a second light source configured to emit light in a first wavelength range, a first dichroic mirror configured to reflect the light in the second wavelength range incident thereon at a first incident angle and transmit the light in the second wavelength range incident thereon at a second incident angle, which is different from the first incident angle, and a second dichroic mirror configured to reflect the light in the second wavelength range that has passed through the first dichroic mirror, wherein after having been reflected by the second dichroic mirror, the light in the second wavelength range is incident on the first dichroic mirror at the first incident angle to then be reflected by the first dichroic mirror.
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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
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.
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公开(公告)号：US10012894B2
公开(公告)日：2018-07-03
申请号：US15393642
申请日：2016-12-29
Applicant: CASIO COMPUTER CO., LTD.
Inventor： Makoto Sato , Hiroshi Ogino , Osamu Umamine
CPC classification number: G03B21/2013 , G02B19/0028 , G02B19/0057 , G02B26/008 , G02B27/0905 , G02B27/141 , G03B21/204 , G03B21/2066 , G03B33/12 , H04N9/3111 , H04N9/3114 , H04N9/3155 , H04N9/3158 , H04N9/3161
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.
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公开(公告)号：US09823463B2
公开(公告)日：2017-11-21
申请号：US14981324
申请日：2015-12-28
Applicant: CASIO COMPUTER CO., LTD.
Inventor： Osamu Umamine
CPC classification number: G02B26/008 , G03B21/16 , G03B21/2033 , G03B21/204 , G03B21/2073 , G03B31/00 , H04N9/3114 , H04N9/3158
Abstract: To provide a light source unit whose overall size is relatively small and a projector which incorporates the light source unit, there is provided a light source unit including a first light source device for emitting light in a first wavelength range, a second light source device which is disposed on an axis of the light in the first wavelength range and having a luminescent light emitting area for emitting light in a second wavelength range by receiving the light in the first wavelength range, and a third light source device which is disposed on the axis of the light in the first wavelength range so as to face the first light source device for emitting light in a third wavelength range.
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