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1. 发明授权

US11187970B2 Light source apparatus having side by side light guide and wavelength converter 有权
公开(公告)号：US11187970B2
公开(公告)日：2021-11-30
申请号：US16724707
申请日：2019-12-23
申请人： SEIKO EPSON CORPORATION
发明人： Junichi Suzuki , Hidefumi Sakata , Yuichiro Iwama , Shingo Komiyama
IPC分类号： F21V9/30 , G03B21/20 , F21V9/32 , F21V8/00 , G02F1/13357
摘要： A light source apparatus includes a light source section emitting first light having a first wavelength band, a light guide propagating part of the first light, a wavelength converter disposed side by side with the light guide and including a phosphor emitting second light having a second wavelength band when excited by another part of the first light, and a light combiner that combines the first light exiting the light guide with the second light exiting the wavelength converter. The light source section faces the light guide and the wavelength converter.

2. 发明授权

US11953818B2 Light source apparatus and projector 有权
公开(公告)号：US11953818B2
公开(公告)日：2024-04-09
申请号：US18188508
申请日：2023-03-23
申请人： SEIKO EPSON CORPORATION
发明人： Yuichiro Iwama
IPC分类号： G03B21/20 , G03B21/00 , G03B33/12
CPC分类号： G03B21/204 , G03B21/006 , G03B33/12
摘要： A light source apparatus according to an aspect of the present disclosure includes a light emitter, a light guide member, a support member having a groove, and a position restriction member. The light guide member has a first surface and a second surface located at sides opposite from each other in a first direction, a third surface and a fourth surface located at sides opposite from each other in a second direction, and a fifth surface and a sixth surface located at sides opposite from each other in a third direction. The groove has a support surface facing the fourth surface, a first wall surface facing the fifth surface and separate from the fifth surface, and a second wall surface facing the sixth surface and separate from the sixth surface. The position restriction member includes a first placement section and a second placement section.

3. 发明授权

US10746931B2 Light source device and projector 有权
公开(公告)号：US10746931B2
公开(公告)日：2020-08-18
申请号：US16523386
申请日：2019-07-26
申请人： SEIKO EPSON CORPORATION
发明人： Junichi Suzuki , Hidefumi Sakata , Yuichiro Iwama
IPC分类号： F21V7/04 , G02B6/293 , F21V8/00 , H01L33/50
摘要： A light source device includes a light source emitting first light in a first wavelength band, a light guide section guiding partial light of the first light, a wavelength conversion section including a phosphor, which other partial light of the first light, and which converts the other partial light into second light in a second wavelength band. A light guide section first side surface and a wavelength conversion section second side surface are opposed. The first side surface has a diffraction grating. The partial light enters the light guide section from the first side surface via the diffraction grating. The other partial light enters the wavelength conversion section from the second side surface. The partial and second lights are emitted in one of a normal direction of the first end surface of the light guide section and a normal direction of the third end surface of the wavelength conversion section.

4. 发明授权

US11022869B2 Light source apparatus and projector 有权
公开(公告)号：US11022869B2
公开(公告)日：2021-06-01
申请号：US16690537
申请日：2019-11-21
申请人： SEIKO EPSON CORPORATION
发明人： Hidefumi Sakata , Junichi Suzuki , Shingo Komiyama , Yuichiro Iwama
IPC分类号： G03B21/20 , F21V8/00 , F21Y115/30
摘要： A light source apparatus according to an aspect of the present disclosure includes a first light source that emits first light, a second light source that emits second light, a light guide that causes the first light emitted from the first light source to propagate, a wavelength converter containing a phosphor that emits fluorescence when excited with the second light emitted from the second light source, and a light combiner that combines the first light having exited out of the light guide with the fluorescence having exited out of the wavelength converter. The light guide and the wavelength converter are disposed side by side. The light guide has a first end section and a second end section. The wavelength converter has a third end section and a fourth end section. The first light enters the light guide via the first end section thereof.

5. 发明授权

US10925127B2 Discharge lamp drive device, light source device, projector, and discharge lamp drive method 有权
公开(公告)号：US10925127B2
公开(公告)日：2021-02-16
申请号：US16135147
申请日：2018-09-19
申请人： SEIKO EPSON CORPORATION
发明人： Masaru Kono , Junichi Suzuki , Shun Sato , Yuichiro Iwama
IPC分类号： H05B41/38 , G03B21/20 , H05B41/292 , H05B41/288 , H01J61/86
摘要： A discharge lamp drive device includes a discharge lamp driver adapted to supply a drive current to a discharge lamp having a first electrode and a second electrode, a control section adapted to control the discharge lamp driver, and a storage section adapted to store a plurality of drive patterns of the drive current. The control section is adapted to select one drive pattern of the plurality of drive patterns based on machine learning, and execute the selected drive pattern.

6. 发明授权

US11669006B2 Light guiding unit, light source apparatus, and projector 有权
公开(公告)号：US11669006B2
公开(公告)日：2023-06-06
申请号：US17463634
申请日：2021-09-01
申请人： SEIKO EPSON CORPORATION
发明人： Hidefumi Sakata , Yuichiro Iwama
IPC分类号： G03B21/20 , F21V8/00
CPC分类号： G03B21/208 , G02B6/0006 , G02B6/0008 , G03B21/204 , G03B21/2066
摘要： A light guiding unit includes a light guiding member that light enters and an angle converter that the light from the light guiding member enters. The light guiding member has a side surface and a light exiting end surface which intersects the side surface and via which the light exits. The angle converter includes a light incident section on which the light from the light guiding member is incident, a light exiting section via which the light incident on the angle converter exits, and a reflection section that reflects the light incident via the light incident section toward the light exiting section. The refractive index of the interior of the angle converter is greater than the refractive index of air. The refractive index of the interior of the light guiding member is greater than the refractive index of the interior of the angle converter.

7. 发明申请

US20220066307A1 LIGHT GUIDING UNIT, LIGHT SOURCE APPARATUS, AND PROJECTOR 有权
公开(公告)号：US20220066307A1
公开(公告)日：2022-03-03
申请号：US17463634
申请日：2021-09-01
申请人： SEIKO EPSON CORPORATION
发明人： Hidefumi Sakata , Yuichiro Iwama
IPC分类号： G03B21/20 , F21V8/00
摘要： A light guiding unit includes a light guiding member that light enters and an angle converter that the light from the light guiding member enters. The light guiding member has a side surface and a light exiting end surface which intersects the side surface and via which the light exits. The angle converter includes a light incident section on which the light from the light guiding member is incident, a light exiting section via which the light incident on the angle converter exits, and a reflection section that reflects the light incident via the light incident section toward the light exiting section. The refractive index of the interior of the angle converter is greater than the refractive index of air. The refractive index of the interior of the light guiding member is greater than the refractive index of the interior of the angle converter. The light exiting end surface and part of the side surface are in contact with the angle converter.

8. 发明授权

US09507247B2 Projector 有权
标题翻译：投影机
公开(公告)号：US09507247B2
公开(公告)日：2016-11-29
申请号：US14656116
申请日：2015-03-12
申请人： SEIKO EPSON CORPORATION
发明人： Takeshi Sowa , Yuichiro Iwama
IPC分类号： G03B21/20 , G03B21/16 , G03B21/00
CPC分类号： G03B21/2053 , G03B21/005 , G03B21/16 , G03B21/2026
摘要： A projector includes a discharge lamp and a discharge lamp drive section. The discharge lamp drive section is configured to selectively perform a first drive in which first drive power is supplied and a second drive in which second drive power higher than the first drive power is supplied in a first posture, and supply drive power not lower than third drive power and not higher than fourth drive power in a second posture in which optical axis intersects with horizontal plane, the third drive power is drive power with which one of the electrodes in the second posture is set to temperature corresponding to first temperature in the first drive in the first posture, and the fourth drive power is drive power with which one of the electrodes in the second posture is set to temperature corresponding to second temperature in the second drive in the first posture.
摘要翻译：投影仪包括放电灯和放电灯驱动部。放电灯驱动部被配置为选择性地执行其中提供第一驱动电力的第一驱动和第一驱动，其中以第一姿态提供高于第一驱动功率的第二驱动功率，并且提供不低于第三驱动功率的驱动电力在光轴与水平面相交的第二姿态中驱动动力并且不高于第四驱动力，第三驱动力是驱动力，第二姿势中的一个电极被设定为对应于第一姿势中的第一温度的温度驱动第一姿态，第四驱动力是第二姿态中的一个电极被设定为与第一姿势中的第二驱动中的第二温度相对应的温度的驱动电力。

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