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公开(公告)号：US20230319385A1
公开(公告)日：2023-10-05
申请号：US18301245
申请日：2023-04-16
Applicant: FUJIFILM Corporation
Inventor： Yuya HIRAKAWA , Kazuyoshi OKADA , Yasunobu KISHINE , Atsushi KAWANAGO
IPC: H04N23/55 , H01L27/146 , G02B5/20 , G02B5/30
CPC classification number: H04N23/55 , G02B5/205 , G02B5/3016 , H01L27/14627
Abstract: An optical member includes aperture regions, a lens device, and an imaging apparatus. A lens device includes: an imaging optical system; a first polarizing part that polarizes at least a part of rays transmitted through the imaging optical system; and a filter unit that is disposed at a pupil position of the imaging optical system or near the pupil position, and includes aperture regions transmitting the rays of the imaging optical system and including a first aperture region and a second aperture region, wavelength selective filters disposed in the first aperture region and the second aperture region and transmitting pieces of light of which at least a part of wavelength ranges are different from each other, and a second polarizing filter including polarizing filters disposed in the first aperture region and the second aperture region and having polarization directions different from each other.
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公开(公告)号：US20230204950A1
公开(公告)日：2023-06-29
申请号：US18153359
申请日：2023-01-12
Applicant: FUJIFILM Corporation
Inventor： Kazuyoshi OKADA , Yasunobu KISHINE , Atsushi KAWANAGO
CPC classification number: G02B27/0081 , G02B13/0095 , G02B7/006 , G02B5/005 , G02B7/02 , H04N23/10 , H04N23/71 , H04N23/633
Abstract: An imaging device, an adjustment method, and an adjustment program can acquire multispectral images having good image quality. The imaging device is disposed on an image side of another optical system, and includes a multispectral camera that acquires images in a plurality of wavelength ranges, a field lens that relays the other optical system to the multispectral camera, and an adjustment mechanism that adjusts a conjugate relationship between an emission pupil position of the other optical system and an incident pupil position of the multispectral camera. The multispectral camera includes: a wavelength polarizing filter unit that includes an optical member disposed at a pupil position or near the pupil position and including a plurality of aperture regions having different centroids, a plurality of optical filters arranged in the aperture regions, and a plurality of polarizing filters arranged in the aperture regions; an imaging element; and a processor.
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公开(公告)号：US20220385863A1
公开(公告)日：2022-12-01
申请号：US17884537
申请日：2022-08-09
Applicant: FUJIFILM Corporation
Inventor： Yasunobu KISHINE , Atsushi KAWANAGO , Kazuyoshi OKADA , Yuya HIRAKAWA
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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公开(公告)号：US20220239850A1
公开(公告)日：2022-07-28
申请号：US17721330
申请日：2022-04-14
Applicant: FUJIFILM Corporation
Inventor： Kazuyoshi OKADA , Yasunobu KISHINE , Atsushi KAWANAGO
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：US20220236463A1
公开(公告)日：2022-07-28
申请号：US17721332
申请日：2022-04-14
Applicant: FUJIFILM Corporation
Inventor： Yasunobu KISHINE , Kazuyoshi OKADA , Atsushi KAWANAGO
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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Patent Agency Ranking
公开(公告)号：US20220078359A1
公开(公告)日：2022-03-10
申请号：US17528171
申请日：2021-11-16
Applicant: FUJIFILM Corporation
Inventor： Yasunobu KISHINE , Shuji ONO , Kazuyoshi OKADA
Abstract: Provided is an imaging apparatus that captures a multispectral image of four bands or more. An imaging apparatus (1) includes an imaging optical system (10), an image sensor (100), and a signal processing unit (200). The imaging optical system (10) includes a bandpass filter unit (16) of which at least one of aperture regions transmits light beams of a plurality of wavelength ranges, and a polarization filter unit (18) that polarizes the light beams transmitted through the bandpass filter unit (16) in a plurality of directions, in a vicinity of a pupil thereof. The image sensor (100) receives light beams transmitted through a plurality of types of spectral filter elements and a plurality of types of polarization filter elements. The signal processing unit (200) processes signals output from the image sensor (100) to generate a plurality of image signals. In the imaging apparatus (1), the number of transmission wavelength ranges of at least one of the aperture regions of the bandpass filter unit (16) is equal to or less than the number of transmission wavelength ranges of the spectral filter element.
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公开(公告)号：US20190086650A1
公开(公告)日：2019-03-21
申请号：US16130123
申请日：2018-09-13
Applicant: FUJIFILM Corporation
Inventor： Takashi KUNUGISE , Kazuyoshi OKADA
CPC classification number: G02B13/22 , G02B13/0045 , G02B13/04 , G02B15/14 , G02B27/0025
Abstract: The imaging lens consists of, in order from the object side, a first lens group, an aperture stop, a second lens group having a positive refractive power. During focusing from a distant object to a close-range object, the first lens group remains stationary, and the aperture stop and the second lens group integrally move to the object side. The imaging lens satisfies predetermined conditional expressions relating to a focal length of the whole system, a focal length of the first lens group, a principal point position of the second lens group, a focal length of the second lens group, a back focal length, and the like.
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公开(公告)号：US20240230971A9
公开(公告)日：2024-07-11
申请号：US18403641
申请日：2024-01-03
Applicant: FUJIFILM Corporation
Inventor： Kazuyoshi OKADA , Yasunobu KISHINE , Yuya HIRAKAWA , Koichi TANAKA , Takashi KUNUGISE , Tatsuro IWASAKI
Abstract: Provided are a lens device, an imaging apparatus, and a filter unit capable of suppressing occurrence of ghosts and flares. The lens device includes a first optical filter and a second optical filter in order from an object side in an optical path. The first optical filter is composed of an optical filter (for example, a band-pass filter) that has a light transmission band in a specific wavelength region. The second optical filter is composed of an optical filter (band-stop filter) that has a light absorption band in a wavelength region which is different from the light transmission band of the first optical filter.
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公开(公告)号：US20240134100A1
公开(公告)日：2024-04-25
申请号：US18403641
申请日：2024-01-03
Applicant: FUJIFILM Corporation
Inventor： Kazuyoshi OKADA , Yasunobu KISHINE , Yuya HIRAKAWA , Koichi TANAKA , Takashi KUNUGISE , Tatsuro IWASAKI
Abstract: Provided are a lens device, an imaging apparatus, and a filter unit capable of suppressing occurrence of ghosts and flares. The lens device includes a first optical filter and a second optical filter in order from an object side in an optical path. The first optical filter is composed of an optical filter (for example, a band-pass filter) that has a light transmission band in a specific wavelength region. The second optical filter is composed of an optical filter (band-stop filter) that has a light absorption band in a wavelength region which is different from the light transmission band of the first optical filter.
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公开(公告)号：US20230370700A1
公开(公告)日：2023-11-16
申请号：US18359856
申请日：2023-07-26
Applicant: FUJIFILM Corporation
Inventor： Yasunobu KISHINE , Atsushi KAWANAGO , Kazuyoshi OKADA , Yuya HIRAKAWA
IPC: H04N23/10 , G06V10/58 , G06V10/143
CPC classification number: H04N23/10 , G06V10/58 , G06V10/143
Abstract: A data processing apparatus includes a processor, in which the processor executes data acquisition processing of acquiring spectral data of a plurality of subjects, calculation processing of calculating intensity characteristics at a first wavelength and a second wavelength selected from wavelength ranges of the acquired spectral data of the plurality of subjects based on a relationship between two wavelengths which are the first wavelength and the second wavelength, data conversion processing of converting the intensity characteristics calculated in the calculation processing into discrimination data of a specific subject for the wavelength range, and output processing of outputting the discrimination data to an outside.
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