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1.发明授权公开(公告)号：US11982899B2
公开(公告)日：2024-05-14
申请号：US17862407
申请日：2022-07-12
Applicant: FUJIFILM Corporation
Inventor： Kazuyoshi Okada , Yasunobu Kishine , Atsushi Kawanago , Yuya Hirakawa
IPC: G02F1/1335 , G02B5/30 , H04N23/55
CPC classification number: G02F1/133538 , G02B5/3025 , H04N23/55
Abstract: Provided are an image processing device, an imaging element, an image processing method, and an image processing program that satisfactorily generate a plurality of polarized image data from polarized image data acquired from an imaging element. A processor (200B) of an image processing device (200) performs an acquisition process of acquiring first image data from an imaging element (100) in which four first-polarizers having different polarization directions are regularly provided on pixels arranged in a two-dimensional manner, a first polarized image data generation process of performing a demosaicing process on the first image data to generate four pieces of first polarized image data having different polarization directions, and a second polarized image data generation process of generating four or less pieces of second polarized image data by using the four pieces of first polarized image data and a relationship between the polarization directions of the four first-polarizers stored in the memory (200C).
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公开(公告)号：US11092790B2
公开(公告)日：2021-08-17
申请号：US16580929
申请日：2019-09-24
Applicant: FUJIFILM Corporation
Inventor： Kazuyoshi Okada , Taro Asami
IPC: G02B15/177 , G02B15/167 , G02B13/18 , G02B13/00 , G02B5/00 , G02B9/64
Abstract: The imaging lens consists of, in order from an object side, a first lens group, a stop, and a positive second lens group. The second lens group has a negative lens on a side closest to an object and has a single lens or a cemented lens having a positive refractive power on a side closest to an image. Predetermined conditional expressions relating to a back focus, an incidence angle of a principal light ray on the image plane, a maximum image height, a distance from a lens surface on the side closest to the object to a lens surface on the side closest to the image, a distance from an object side principal point of the second lens group to a stop, and a focal length of the second lens group are satisfied.
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公开(公告)号：US10156696B2
公开(公告)日：2018-12-18
申请号：US15696219
申请日：2017-09-06
Applicant: FUJIFILM Corporation
Inventor： Kazuyoshi Okada , Michio Cho
Abstract: The imaging lens consists of a first lens group G1, an aperture stop St, and a positive second lens group G2, in order from an object side. The first lens group G1 consists of a 1-1st negative meniscus lens L11 with its convex surface toward the object side, a 1-2nd negative lens L12 with its concave surface toward an image side, a 1-3rd positive lens L13 having a biconvex shape, a 1-4th negative meniscus lens L14 with its convex surface toward the object side, and a 1-5th positive lens L15 with its convex surface toward the object side, in order from the object side. Predetermined conditional expressions are satisfied which relate to a focal length of the whole system, a focal length of the first lens group G1, and a distance on an optical axis between the 1-4th negative meniscus lens L14 and the 1-5th positive lens L15.
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公开(公告)号：US12197109B2
公开(公告)日：2025-01-14
申请号：US18063658
申请日：2022-12-08
Applicant: FUJIFILM Corporation
Inventor： Atsushi Kawanago , Yasunobu Kishine , Kazuyoshi Okada
Abstract: A lens device and an imaging apparatus that can emit illumination light coaxial with a lens optical system are proposed herein. A lens device includes an optical system that includes a first lens and a second lens forming an optical image of a subject; a first optical member that includes a frame that includes a plurality of aperture regions, a plurality of optical filters that include two or more optical filters transmitting lights having at least some wavelength ranges different from each other, and a plurality of polarizing filters that have different polarization directions; and a second optical member that is provided outside the optical system and closer to a subject side than the first optical member and emits illumination light, which is incident from the outside of the optical system, to the subject side via the optical system.
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公开(公告)号：US12177550B2
公开(公告)日：2024-12-24
申请号：US18063654
申请日：2022-12-08
Applicant: FUJIFILM Corporation
Inventor： Yasunobu Kishine , Atsushi Kawanago , Kazuyoshi Okada
Abstract: There are provided a lens device, an imaging apparatus, and an imaging method that suppress the occurrence of overexposure by dimming or blocking totally reflected light. The lens device (100) includes: an optical system (100A); a wavelength polarizing filter unit (130) that is disposed at a pupil position of the optical system (100A) or near the pupil position and includes a plurality of aperture regions, a plurality of optical filters that are disposed in the plurality of aperture regions and include two or more optical filters transmitting lights having a part of wavelength ranges different from each other, and a plurality of first polarizing filters that are disposed in the plurality of aperture regions and are at least two first polarizing filters having polarization directions different from each other; and a first circularly polarizing optical element (101) that is provided between a subject and the wavelength polarizing filter unit.
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Patent Agency Ranking
公开(公告)号：US12096135B2
公开(公告)日：2024-09-17
申请号：US17884537
申请日：2022-08-09
Applicant: FUJIFILM Corporation
Inventor： Yasunobu Kishine , Atsushi Kawanago , Kazuyoshi Okada , Yuya Hirakawa
IPC: H04N25/13 , G02B5/20 , G02B5/30 , H04N25/60 , H04N25/702
CPC classification number: H04N25/134 , G02B5/201 , G02B5/3025 , H04N25/60 , H04N25/702
Abstract: Provided are an imaging apparatus and a method capable of capturing a high-quality multi spectral image. The imaging apparatus includes: an optical system that has three or more aperture regions at a pupil position or near the pupil position, each of the aperture regions being provided with a different combination of a polarizing filter and a bandpass filter such that the aperture region transmits light having a combination of a different polarization angle and a different wavelength range; an image sensor in which three or more types of pixels that receive light having different polarization angles are arranged two-dimensionally; and a processor that performs interference removal processing on a signal output from the image sensor and generates an image signal for each of the aperture regions. In a case where the optical system has three or more types of the polarizing filters and the polarizing filters are arranged in an order of the polarization angles, at least one of differences in the polarization angles of the adjacent polarizing filters is different from the others.
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7.发明授权公开(公告)号：US11796722B2
公开(公告)日：2023-10-24
申请号：US17721332
申请日：2022-04-14
Applicant: FUJIFILM Corporation
Inventor： Yasunobu Kishine , Kazuyoshi Okada , Atsushi Kawanago
CPC classification number: G02B5/201 , G02B7/006 , G02B27/288 , H04N23/55 , H04N25/131 , H04N25/135
Abstract: One embodiment according to the technology of the present disclosure provides an optical element, an optical device, and an imaging apparatus, which can acquire a multispectral image having a good image quality. An optical element according to one aspect of the present invention includes: a frame having a plurality of aperture regions; and a plurality of optical filters that are mounted in the plurality of aperture regions, the plurality of optical filters including at least two types of filters having different wavelength ranges of transmitted light, and centroids of at least two types of aperture regions coincide with each other.
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公开(公告)号：USD975167S1
公开(公告)日：2023-01-10
申请号：US29744672
申请日：2020-07-30
Applicant: FUJIFILM Corporation
Designer： Atsushi Kawanago , Kazuyoshi Okada , Yasunobu Kishine , Yuya Hirakawa
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公开(公告)号：US11930256B2
公开(公告)日：2024-03-12
申请号：US17721330
申请日：2022-04-14
Applicant: FUJIFILM Corporation
Inventor： Kazuyoshi Okada , Yasunobu Kishine , Atsushi Kawanago
CPC classification number: H04N23/11 , G02B5/3033 , G02B15/142
Abstract: Provided are an imaging device which can simultaneously capture images in different wavelength ranges and can improve a focusing accuracy of each image, an imaging optical system, and an imaging method. An imaging device (1) includes an imaging optical system (10) which has a first pupil region for passing light in a first wavelength range and a second pupil region for passing light in a second wavelength range, in which an axial chromatic aberration of the imaging optical system (10) is reduced based on a relationship between an aberration other than the axial chromatic aberration of the imaging optical system (10) and positions of the first pupil region and the second pupil region in the imaging optical system (10), an imaging element (100) which includes a first pixel receiving the light passing through the first pupil region in the imaging optical system (10) and a second pixel receiving the light passing through the second pupil region in the imaging optical system (10), and a signal processing unit (200) which processes a signal output from the imaging element (100), and generates each of a first image of the first wavelength range and a second image of the second wavelength range based on an output signal of the first pixel and an output signal of the second pixel.
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公开(公告)号：US11706506B2
公开(公告)日：2023-07-18
申请号：US17528175
申请日：2021-11-16
Applicant: FUJIFILM Corporation
Inventor： Kazuyoshi Okada , Yasunobu Kishine , Atsushi Kawanago
CPC classification number: H04N23/45 , G02B5/20 , G02B5/3025 , H04N25/135
Abstract: Provided is an imaging apparatus that captures a multispectral image having a good image quality. An imaging apparatus (1) includes an imaging optical system (10) that includes a pupil region which is split into a plurality of regions including a first pupil region and a second pupil region different from the first pupil region, and a polarization filter which polarizes light beams passing through the first pupil region and the second pupil region in directions different from each other, an imaging element (100) that includes a first pixel which receives the light beam passing through the first pupil region and a second pixel which receives the light beam passing through the second pupil region, and a signal processing unit (200) that processes signals output from the imaging element (100), and outputs at least first image data consisting of an output signal of the first pixel and second image data consisting of an output signal of the second pixel. In the imaging optical system (10), wavelengths of the light beams passing through the first pupil region and the second pupil region are different from each other, and aberration characteristics of regions corresponding to the first pupil region and the second pupil region are different from each other.
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