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公开(公告)号：US20250138290A1
公开(公告)日：2025-05-01
申请号：US19008754
申请日：2025-01-03
Inventor： Tsuneo UCHIDA , Katsu YAMADA , Satoshi KUZUHARA
Abstract: An optical system according to the present disclosure includes a first sub-optical system including an aperture stop and a second sub-optical system including a prism. The prism has a first transmission surface located on the reduction side, a second transmission surface located on the magnification side, and at least one reflection surface located on the optical path between the first transmission surface and the second transmission surface. A first reflection surface closest to the intermediate imaging position has a shape with a concave surface facing a direction into which a light ray incident on first the reflection surface is reflected. A curvature shape of the first reflection surface is set such that some of multiple principal rays passing through the reduction conjugate point intersect on the optical path between the first reflection surface and the second transmission surface.
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公开(公告)号：US20180188507A1
公开(公告)日：2018-07-05
申请号：US15906365
申请日：2018-02-27
Inventor： Tsuneo UCHIDA , Katsu YAMADA
CPC classification number: G03B21/28 , G02B13/16 , G02B13/18 , G02B17/08 , G03B21/00 , G03B21/14 , H04N5/74
Abstract: A projection optical system is an optical system for projecting an image light flux formed in an image display element onto a projection surface, and includes a transmission optical system and a reflection optical system. The transmission optical system is located on an emission surface side of the image display element and includes a stop and a plurality of lenses. The reflection optical system includes a positive-power first mirror and a second mirror. Conditional Expression (1) is satisfied 0
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3.发明申请公开(公告)号：US20150350558A1
公开(公告)日：2015-12-03
申请号：US14823177
申请日：2015-08-11
Inventor： Tsuneo UCHIDA , Masafumi SUEYOSHI
CPC classification number: G02B15/14 , G02B15/17 , G02B27/646 , G03B5/00 , G03B17/14 , G03B2205/0046
Abstract: A zoom lens system comprising a positive first lens unit, a negative second lens unit, and subsequent lens units composed of three or more lens units and an aperture diaphragm, wherein intervals between adjacent lens units vary in zooming, the first lens unit is composed of two or less lens elements and moves along an optical axis in the zooming, three or more negative lens elements are located between the first lens unit and the aperture diaphragm, and the conditions: 0.30
Abstract translation: 一种变焦透镜系统，包括正的第一透镜单元，负的第二透镜单元和由三个或更多个透镜单元和孔径光阑构成的后续透镜单元，其中相邻透镜单元之间的间隔在变焦中变化，第一透镜单元由 两个或更少的透镜元件并且在变焦中沿着光轴移动，三个或更多个负透镜元件位于第一透镜单元和孔径光阑之间，条件为：0.30 <| BFW / YW | <1.39和1.10
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公开(公告)号：US20230085385A1
公开(公告)日：2023-03-16
申请号：US17988968
申请日：2022-11-17
Inventor： Satoshi KUZUHARA , Tsuneo UCHIDA
Abstract: An optical device includes a lens element, a first scanning element, and a controller. The lens element directs first light emitted from the first light-emitting element and second light emitted from the second light-emitting element, to a predetermined position. The first scanning element is arranged at the predetermined position, on which first light and second light exiting the lens element are incident at mutually different angles. The controller provides light emission control to start light emission at light emission timings shifted. The first light-emitting element and the second light-emitting element is arrayed such that an optical axis of first light and an optical axis of second light are contained in a same plane. The controller controlees the light emission timings of the first light-emitting element and the second light-emitting element in response to rotation actions of the first scanning element.
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公开(公告)号：US20210364784A1
公开(公告)日：2021-11-25
申请号：US17398135
申请日：2021-08-10
Inventor： Satoshi KUZUHARA , Tsuneo UCHIDA
Abstract: The present disclosure provides an optical system that includes a prism having an incident surface, an exit surface, and one or more reflecting surfaces. The optical system includes a first scanning element configured to scan a light that enters and has a plurality of wavelengths in a first direction, and reflect the light in a direction of the incident surface of the prism. The optical system includes a second scanning element configured to scan in a second direction the light that exits from the exit surface of the prism, the second direction being orthogonal to the first direction. The incident surface of the prism has a concave shape with respect to the first scanning element.
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Patent Agency Ranking
公开(公告)号：US20180239118A1
公开(公告)日：2018-08-23
申请号：US15957544
申请日：2018-04-19
Inventor： Tsuneo UCHIDA , Katsu YAMADA
Abstract: A projection optical system is an optical system that magnifies and projects an image onto a projection surface from an oblique position defined by a Y-axis and a Z-axis. The image is displayed on an image display element, is defined by a positive direction of an X-axis and a positive direction of the Y-axis, and includes a long side parallel to the X-axis and a short side parallel to the Y-axis when a positional relationship is expressed using an XYZ coordinate. The projection optical system includes a transmission optical system and a transmission element. An incident angle of a light beam of the image incident on a reference vertical intersecting line with respect to one of surfaces of the transmission element is zero only at one point on the reference vertical intersecting line.
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公开(公告)号：US20230047387A1
公开(公告)日：2023-02-16
申请号：US17970942
申请日：2022-10-21
Inventor： Satoshi KUZUHARA , Tsuneo UCHIDA
IPC: G02B5/04
Abstract: A prism includes a first intermediate imaging position at which a component in a first direction of the light flux is imaged and a second intermediate imaging position at which a component in a second direction orthogonal to the first direction of the light flux is imaged, different from the first intermediate imaging position. At least one of the first intermediate imaging position and the second intermediate imaging position lying within a first range from the second surface between the first surface and the second surface or lying within a second range from the second surface between the second surface and the third surface. The first range has a length less than one-half of an optical path length from the first surface to the second surface, and the second range has a length less than one-half of the optical path length from the second surface to the third surface.
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公开(公告)号：US20210373304A1
公开(公告)日：2021-12-02
申请号：US17405723
申请日：2021-08-18
Inventor： Satoshi KUZUHARA , Tsuneo UCHIDA
Abstract: The present disclosure provides an optical system that includes a prism having an incident surface, an exit surface, and one or more reflecting surfaces. The optical system includes a first scanning element configured to scan in a first direction a light that enters and reflect the light in a direction of the incident surface of the prism, and a second scanning element configured to scan in a second direction the light that exits from the exit surface of the prism, the second direction being orthogonal to the first direction. The incident surface of the prism has a convex shape with respect to the first scanning element.
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公开(公告)号：US20230288685A1
公开(公告)日：2023-09-14
申请号：US18198358
申请日：2023-05-17
Inventor： Tsuneo UCHIDA , Takuya IMAOKA , Katsu YAMADA , Satoshi KUZUHARA
CPC classification number: G02B17/086 , G02B13/18 , G02B13/16 , G03B21/28 , H04N23/55
Abstract: The optical system includes a first sub-optical system including an aperture stop and a second sub-optical system including a prism. The prism has a first transmission surface located on a reduction side, a second transmission surface located on a magnification side, and at least one reflection surface between the first transmission surface and the second transmission surface. The first sub-optical system includes a plurality of rotationally symmetric lens elements. When the axis passing through at least two centers of the rotationally symmetric lens element is defined as a reference optical axis, at least one optical surface of the prism is formed such that in a plane perpendicular to the reference optical axis, a maximum angle θmax and a minimum angle θmin in terms of an angle at which a principal ray of light rays having an image-forming relationship on a concentric circle centered on an intersection of the reference optical axis and a reduction conjugate point of the rectangular region intersects a normal line of the plane at a position where the principal ray is made incident on the optical surface satisfy the following Expression (1): 45°>|θmax|−|θmin|>0.014°.
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公开(公告)号：US20220082805A1
公开(公告)日：2022-03-17
申请号：US17511799
申请日：2021-10-27
Inventor： Tsuneo UCHIDA , Katsu YAMADA , Satoshi KUZUHARA
Abstract: An optical system according to the present disclosure includes a first sub-optical system including an aperture stop and a second sub-optical system including a prism. The prism has a first transmission surface located on the reduction side, a second transmission surface located on the magnification side, and at least one reflection surface located on the optical path between the first transmission surface and the second transmission surface. A first reflection surface closest to the intermediate imaging position has a shape with a concave surface facing a direction into which a light ray incident on first the reflection surface is reflected. A curvature shape of the first reflection surface is set such that some of multiple principal rays passing through the reduction conjugate point intersect on the optical path between the first reflection surface and the second transmission surface.
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