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公开(公告)号：US20210124250A1
公开(公告)日：2021-04-29
申请号：US17078512
申请日：2020-10-23
Inventor： Manabu OKUNO , Yoshimasa FUSHIMI
Abstract: A lighting device of the present disclosure includes a light source device and a reflective component. The reflective component reflects an illumination light incident from the light source device off the reflecting surface of the reflective component at incident angle α, and emits the illumination light reflected toward a display element at exit angle β. The reflecting surface of the reflective component is rotated with respect to two axes orthogonal to each other. 20 degrees≤|α−β|≤60 degrees is satisfied. Where, each of the incident angle α and the exit angle β is angle of the illumination light to a horizontal direction of the display element when the illumination light is incident on a front surface of the display element.
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公开(公告)号：US20200249449A1
公开(公告)日：2020-08-06
申请号：US16776958
申请日：2020-01-30
Inventor： Manabu OKUNO , Yohei KATSUMATA
Abstract: A light source device 20 includes light source units 200a to 200d, lenses 203a, 203b, and 205, and mirrors 204a and 204b. Light source units 200a, 200b and/or light source units 200c, 200d are placed such that the light from units 200a to 200d either enters lens 203a at a position deviated from the optical axis of lens 203a or enters lens 203b at a position deviated from the optical axis of lens 203b.
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公开(公告)号：US20210203895A1
公开(公告)日：2021-07-01
申请号：US17132713
申请日：2020-12-23
Inventor： Manabu OKUNO , Manabu CHIKAYAMA
Abstract: The display device includes a light source unit that emits light, a first display element, and a second display element. The display device further includes a light separating and synthesizing member that separates the light emitted from the light source unit into first light and second light having different wavelength regions, emits the first light toward the first display element, emits the second light toward the second display element, and synthesizes the first light that has been reflected and modulated by the first display element and the second light that has been reflected and modulated by the second display element. The display device further includes a light absorbing member that covers a part of the first display element. The light absorbing member absorbs a part of the modulated second light reflected by the second display element and directed toward the first display element.
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Patent Agency Ranking
公开(公告)号：US20210191243A1
公开(公告)日：2021-06-24
申请号：US17196142
申请日：2021-03-09
Inventor： Takaaki TANAKA , Manabu OKUNO
Abstract: A light source apparatus includes a plurality of light emitting apparatuses. Each of the light emitting apparatuses includes a plurality of light emitting devices each of which has a light emitting area and a non-light emitting area on an emission surface thereof that emits light. At least two light emitting apparatuses of the light emitting apparatuses constitute a light emitting apparatus group disposed such that the emission surfaces of the respective light emitting apparatuses are parallel to each other with a predetermined distance, and that a distance between light emitting areas of the respective light emitting apparatuses when viewed along a direction perpendicular to the emission surfaces of the at least two of the light emitting apparatuses is shorter than a distance between the light emitting areas of the respective light emitting apparatuses when the emission surfaces of the respective light emitting apparatuses are on the same plane.
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公开(公告)号：US20240201574A1
公开(公告)日：2024-06-20
申请号：US18589664
申请日：2024-02-28
Inventor： Shigekazu Yamagishi , Manabu OKUNO
CPC classification number: G03B33/08 , G03B21/2013 , G03B21/2033 , G03B21/2066
Abstract: A projection image apparatus includes an illumination optical system generating illumination light by combining laser light of a first and a second color, a light modulator generating image light by modulating the illumination light, and a projection optical system enlarging and projecting the image light. The light source is configured to have a small difference between a height of a light source image of the laser light of the first color and a height of a light source image of the laser light of the second color. The illumination optical system includes a relay optical system including a first diaphragm of reflective type having a variable opening diameter, the first diaphragm disposed at a first pupil position. The projection optical system includes a second diaphragm of absorption type having a variable opening diameter, the second diaphragm disposed at a second pupil position conjugate with the first pupil position.
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公开(公告)号：US20230091332A1
公开(公告)日：2023-03-23
申请号：US17994129
申请日：2022-11-25
Inventor： Takaaki TANAKA , Manabu OKUNO
Abstract: A light source apparatus includes a plurality of light emitting apparatuses. Each of the light emitting apparatuses includes a plurality of light emitting devices each of which has a light emitting area and a non-light emitting area on an emission surface thereof that emits light. At least two light emitting apparatuses of the light emitting apparatuses constitute a light emitting apparatus group disposed such that the emission surfaces of the respective light emitting apparatuses are parallel to each other with a predetermined distance, and that a distance between light emitting areas of the respective light emitting apparatuses when viewed along a direction perpendicular to the emission surfaces of the at least two of the light emitting apparatuses is shorter than a distance between the light emitting areas of the respective light emitting apparatuses when the emission surfaces of the respective light emitting apparatuses are on the same plane.
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公开(公告)号：US20210041779A1
公开(公告)日：2021-02-11
申请号：US17070263
申请日：2020-10-14
Inventor： Takaaki TANAKA , Manabu OKUNO
Abstract: A first light source device includes: a solid-state light source; a condenser element that collects light from the solid-state light source; a retardation plate that converts linearly polarized light into circularly polarized light; and a reflection plate, wherein the retardation plate is disposed at a point of incidence of collected light and divergent light between the condenser element and the reflection plate. A second light source device includes: a solid-state light source; a retardation plate that changes a polarization direction of light from the solid-state light source to make a ratio of p-polarization and s-polarization components of the light constant under control; and a dichroic mirror that separates the light from the retardation plate according to the polarization direction, wherein the retardation plate is disposed at a point of incidence of one of collected light and divergent light between the solid-state light source and the dichroic mirror.
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公开(公告)号：US20150192848A1
公开(公告)日：2015-07-09
申请号：US14592545
申请日：2015-01-08
Inventor： Manabu OKUNO
CPC classification number: G03B21/2066 , F21V7/00 , F21V13/04 , G02B26/008 , G02B27/1033 , G02B27/106 , G03B21/2013 , H04N9/3114 , H04N9/3158 , H04N9/3164
Abstract: A lighting device includes plural light sources, an optical coupling device including plural reflection members each having a reflection surface, the optical coupling device reflecting plural light beams emitted in plural directions from the plural light sources at the reflection surfaces of plural reflection members and coupling the plural light beams to generate a coupled light beam in an identical direction, and a homogenization device that homogenizes the coupled light beam from the optical coupling device. In at least one of the plural reflection members, a cutout portion is formed to transmit an incident light beam on the reflection surface of the other reflection member such that the incident light beam is not blocked by a part of a region of the at least one reflection member on the way to the reflection surface of the other reflection member.
Abstract translation: 照明装置包括多个光源，包括多个具有反射面的反射构件的光耦合装置，该光耦合装置反射从多个光源在多个反射构件的反射面处沿多个方向发射的多个光束， 多个光束以相同的方向产生耦合的光束，以及均匀化装置，其使来自光耦合装置的耦合的光束均匀化。 在多个反射构件中的至少一个反射构件中，形成切口部，以将入射光束透射到另一反射构件的反射表面上，使得入射光束不被至少一个反射构件的区域的一部分阻挡 反射构件在到另一反射构件的反射面的途中。
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