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公开(公告)号：US20180045869A1
公开(公告)日：2018-02-15
申请号：US15783359
申请日：2017-10-13
Applicant: FUJIFILM Corporation
Inventor： Tomoyuki KAWAI , Chikara YAMAMOTO
CPC classification number: G02B5/30 , G02B23/02 , G02B23/18 , G02B27/28 , G02B27/285 , G02B27/286 , G02B27/288 , H04N5/2254 , H04N9/045
Abstract: The first polarizing element transmits a specific linear polarized component. The first polarizing element is rotatably disposed on a surface orthogonal to an optical axis of a first optical path, and is rotated and driven by the first rotation drive unit. The linear polarized component extraction unit is disposed on a second optical path which is parallel to and independent of the first optical path, and extracts linear polarized components from an incidence ray, respectively, with respect to a plurality of polarization directions. The polarization direction detection unit detects an optimum polarization direction on the basis of imaging signals. The rotation control unit controls the first rotation drive unit, to set the first polarizing element at an angle that allows transmission of a linear polarized component in the optimum polarization direction.
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公开(公告)号：US20180007273A1
公开(公告)日：2018-01-04
申请号：US15705290
申请日：2017-09-15
Applicant: FUJIFILM CORPORATION
Inventor： Tomonori MASUDA , Masaaki ORIMOTO , Hiroshi TAMAYAMA , Chikara YAMAMOTO
CPC classification number: H04N5/23267 , G01C3/06 , G01S7/4814 , G01S7/497 , G01S17/08 , H04N5/232 , H04N5/23251 , H04N5/23287 , H04N5/23293 , H04N5/23296
Abstract: A distance measurement device includes a detection unit, an optical path forming unit, a first reduction unit that reduces, based on a detection result of the detection unit, influence of variation of the optical axis of the image formation optical system, a second reduction unit that is disposed in a different part from the common optical path and reduces variation of the optical axis of the directional light based on the detection result of the detection unit, and a control unit that, in the case of operating the first reduction unit and the second reduction unit at the same time, controls the first reduction unit and the second reduction unit to reduce variation of an irradiation position of the directional light in the subject image received as light by the light receiving section.
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公开(公告)号：US20180007272A1
公开(公告)日：2018-01-04
申请号：US15705288
申请日：2017-09-15
Applicant: FUJIFILM CORPORATION
Inventor： Tomonori MASUDA , Masaaki ORIMOTO , Hiroshi TAMAYAMA , Chikara YAMAMOTO
CPC classification number: H04N5/23267 , G01C3/06 , G01S7/481 , G01S7/4814 , G01S7/4865 , G01S7/497 , G01S7/51 , G01S17/023 , G01S17/08 , G01S17/10 , H04N5/23245 , H04N5/23251 , H04N5/23258 , H04N5/23287 , H04N5/23293 , H04N5/23296
Abstract: A distance measurement device includes an emission unit, a detection unit, a first reduction unit that reduces, based on a detection result of the detection unit, influence of variation of an optical axis of the image formation optical system on a subject image received as light by a light receiving section, a second reduction unit that reduces variation of an optical axis of the directional light with respect to the subject based on the detection result of the detection unit, and a control unit that, in the case of operating the first reduction unit and the second reduction unit at the same time, controls the first reduction unit and the second reduction unit to reduce variation of an irradiation position of the directional light in the subject image received as light by the light receiving section.
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公开(公告)号：US20220066297A1
公开(公告)日：2022-03-03
申请号：US17402330
申请日：2021-08-13
Applicant: FUJIFILM Corporation
Inventor： Chikara YAMAMOTO
Abstract: The projection device includes a display element that displays an image, a projection optical system that forms an intermediate image of the image within an air space and projects the intermediate image to form a projected image, and a light shielding member that is disposed within the air space. The light shielding member includes a light shielding region which is positioned outside optical paths of all effective luminous fluxes emitted from the display element and used to form the projected image. The projection device satisfies a predetermined conditional expression.
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公开(公告)号：US20200033702A1
公开(公告)日：2020-01-30
申请号：US16511006
申请日：2019-07-15
Applicant: FUJIFILM Corporation
Inventor： Kazuki INOUE , Chikara YAMAMOTO
Abstract: A projection display device includes an imaging element, a light source, a light valve that modulates light from the light source and emits modulated light in a prescribed polarization state, and an imaging optical system. The imaging optical system includes a first optical system that is used in common in projection and imaging, a second optical system that is used only in projection, a third optical system that is used only in imaging, and a separation member that separates an optical path from the second optical system toward the first optical system from an optical path from the first optical system toward the third optical system. The first optical system comprises a quarter wave plate and a polarizer arranged in a state of transmitting the light emitted from the light valve.
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Patent Agency Ranking
公开(公告)号：US20180024357A1
公开(公告)日：2018-01-25
申请号：US15624281
申请日：2017-06-15
Applicant: FUJIFILM Corporation
Inventor： Chikara YAMAMOTO
CPC classification number: G02B27/0101 , G02B13/16 , G02B27/0149 , G02B27/0179 , G02B2027/0145 , G02B2027/0154 , G06T3/20 , G06T3/40
Abstract: There is provided a head-up display device that reflects and enlarges an image, which is displayed on an image display element, by a curved mirror, allows an observer to visually recognize the image as a virtual image, can change a virtual image display position, and is small. A head-up display device, which reflects and enlarges a displayed primary display image by a curved mirror and allows an observer to visually recognize the primary display image as a virtual image, includes a virtual-image-position change portion of changing a distance between the observer and the virtual image and a display-size change portion of changing the display size of the primary display image, and is adapted to satisfy the following conditional expression (1). 2.5
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7.发明申请公开(公告)号：US20180007275A1
公开(公告)日：2018-01-04
申请号：US15705289
申请日：2017-09-15
Applicant: FUJIFILM CORPORATION
Inventor： Tomonori MASUDA , Masaaki ORIMOTO , Hiroshi TAMAYAMA , Chikara YAMAMOTO
CPC classification number: H04N5/23287 , G01S7/4814 , G01S7/4816 , G01S7/497 , G01S17/08 , G01S17/89 , H04N5/232 , H04N5/23258 , H04N5/23293 , H04N5/23296 , H05K999/99
Abstract: A distance measurement device includes a detection unit, an optical path forming unit, a common reduction unit that reduces influence of variation of an optical axis of an image formation optical system, and reduces variation of an optical axis of the directional light, an auxiliary reduction unit that auxiliarily reduces at least one of influence of variation of the optical axis of the image formation optical system or variation of the optical axis of the directional light, and a control unit that, in a case of operating the common reduction unit and the auxiliary reduction unit at the same time, controls the common reduction unit and the auxiliary reduction unit to reduce variation of an irradiation position of the directional light in a subject image received as light by a light receiving section.
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公开(公告)号：US20150268455A1
公开(公告)日：2015-09-24
申请号：US14660963
申请日：2015-03-18
Applicant: FUJIFILM Corporation
Inventor： Chikara YAMAMOTO
IPC: G02B13/16
Abstract: A projection lens consists essentially of a first lens group having positive refractive power and a second lens group having positive refractive power in this order from a magnification side. A surface closest to a reduction side in the first lens group is convex. The second lens group consists of two single lenses each having positive refractive power, and in each of which a surface having a smaller absolute value faces the reduction side. Further, the following conditional expressions (1) through (4) are satisfied: |R1b/R1f|≦0.5 (1); |R2b/R2f|≦0.6 (2); |Δ/f2|≦0.3 (3) and d2/f2≦0.4 (4).
Abstract translation: 投影透镜基本上由具有正屈光力的第一透镜组和具有正屈光力的第二透镜组构成。 第一透镜组中最靠近减压侧的表面是凸形的。 第二透镜组由具有正折射光焦度的两个单透镜组成，并且其中每个具有较小绝对值的表面面向折射侧。 此外，满足以下条件表达式（1）至（4）：| R1b / R1f |＆nlE; 0.5（1）; | R2b / R2f |＆nlE; 0.6（2）; |＆Dgr; / f2 |＆nlE; 0.3（3）和d2 / f2＆nlE; 0.4（4）。
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公开(公告)号：US20230213845A1
公开(公告)日：2023-07-06
申请号：US18183885
申请日：2023-03-14
Applicant: FUJIFILM Corporation
Inventor： Chikara YAMAMOTO , Kazuki Inoue
CPC classification number: G03B21/142 , G03B21/53
Abstract: A projection apparatus includes a display element that displays an image, a projection optical system that forms a projection image by projecting the image, an imaging unit that includes an imaging optical system which images a first region including an optical axis of the projection optical system in the projection image, and an imaging element which captures an image formed by the imaging optical system, and a processor that controls focus adjustment on a second region not including the optical axis in the projection image based on information acquired from the imaging unit, in which a position of the projection image is changeable by changing a relative position between at least a part of the projection optical system and the display element, and a predetermined conditional expression is satisfied.
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公开(公告)号：US20220264064A1
公开(公告)日：2022-08-18
申请号：US17591788
申请日：2022-02-03
Applicant: FUJIFILM Corporation
Inventor： Yukiko NAGATOSHI , Akiko NAGAHARA , Chikara YAMAMOTO
Abstract: A projection-type display device includes: a display element including a rectangular displayable region in which an image is displayable; and a projection optical system. Assuming that a focal length of the projection optical system is f and a length of a long side of the displayable region is w, 0.15
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