Patents by Inventor Tsugio Gomi
Tsugio Gomi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20220373391Abstract: A spectroscopic camera includes a spectroscopic element and a light receiver, and a method for correcting the spectroscopic camera includes causing light having a first wave number from a spectroscopic light source to be incident on the spectroscopic element, causing the light receiver to receive light having a second wave number and outputted from the spectroscopic element, generating a matrix representing the spectral characteristics of the light having the second wave number based on the output from the light receiver, and generating a correction matrix based on the inverse matrix of the matrix and storing the correction matrix in a storage section.Type: ApplicationFiled: May 18, 2022Publication date: November 24, 2022Inventor: Tsugio GOMI
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Patent number: 10900831Abstract: A spectroscopic measurement apparatus includes a light emitter simultaneously emitting light including light having all wavelengths in a wavelength range from 400 nm to 700 nm to a measurement target, a light disperser dispersing a reflected light reflected by the measurement target to a predetermined wavelength, a light receiver that receives the light dispersed by the light disperser and outputs a second light reception amount indicating a light intensity of the received light, and a calculator that receives the second light reception amount of each wavelength and calculates a reflection spectrum when the measurement target is irradiated with light, in which the calculator calculates reflectance of a predetermined wavelength using the second light reception amounts of a plurality of wavelengths.Type: GrantFiled: August 1, 2019Date of Patent: January 26, 2021Inventor: Tsugio Gomi
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Patent number: 10900833Abstract: A spectral reflectometer includes a first substrate, a first light emitting element and a second light emitting element in which a height of a first light emitting portion which is the height from the first substrate to a first light emitting portion of the first light emitting element, which is installed on the first substrate and a height of a second light emitting portion which is the height from the first substrate to a second light emitting portion of the second light emitting element are different, and a light receiver that receives light, in which the second light emitting element having a high height of the second light emitting portion is installed at a position close to an optical axis of the light received by the light receiver from the first light emitting element having a low height of the first light emitting portion.Type: GrantFiled: November 28, 2018Date of Patent: January 26, 2021Inventor: Tsugio Gomi
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Publication number: 20200041343Abstract: A spectroscopic measurement apparatus includes a light emitter simultaneously emitting light including light having all wavelengths in a wavelength range from 400 nm to 700 nm to a measurement target, a light disperser dispersing a reflected light reflected by the measurement target to a predetermined wavelength, a light receiver that receives the light dispersed by the light disperser and outputs a second light reception amount indicating a light intensity of the received light, and a calculator that receives the second light reception amount of each wavelength and calculates a reflection spectrum when the measurement target is irradiated with light, in which the calculator calculates reflectance of a predetermined wavelength using the second light reception amounts of a plurality of wavelengths.Type: ApplicationFiled: August 1, 2019Publication date: February 6, 2020Inventor: Tsugio GOMI
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Patent number: 10473527Abstract: A measuring device is a measuring device that performs colorimetry of an evaluation patch formed on a medium and a paper white patch that is a portion exposed by the medium. The measuring device has a light source portion that irradiates the medium with an illumination light, a measurement portion that acquires an amount of light from the medium as a measurement value, a memory that holds a paper white standard value that is a reference measurement value of the paper white patch, and a colorimetry unit that corrects a measurement value of the evaluation patch based on the measurement value of the paper white patch and the paper white standard value. Even in a case where a measurement position is changed, a reflectance of the evaluation patch is accurately calculated and a chromaticity of the evaluation patch can be accurately acquired.Type: GrantFiled: January 28, 2019Date of Patent: November 12, 2019Assignee: Seiko Epson CorporationInventor: Tsugio Gomi
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Patent number: 10442228Abstract: A printer that incorporates a spectrometry device includes a spectroscope, a distance measurer, and a spectrometry unit. The spectroscope includes a wavelength-selective interference filter on which light from a position of measurement in a medium is incident. The distance measurer measures the distance between the position of measurement and the spectroscope, and the spectrometry unit performs spectrometry at the position of measurement by using the spectroscope and correct a measured value obtained by the spectrometry based on the measured distance.Type: GrantFiled: August 21, 2018Date of Patent: October 15, 2019Assignee: Seiko Epson CorporationInventor: Tsugio Gomi
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Patent number: 10308051Abstract: A measurement device includes a light source that radiates an illumination light on a measurement object; and a measurement unit that measures a measurement light that is reflection light obtained by the illumination light being reflected by the measurement object or transmitted light obtained by the illumination light passing through the measurement object. The illumination light is a plurality of illumination lights. In a case where the measurement object is positioned at a reference position, an illumination center at which an optical axis of each of the plurality of illumination lights and the measurement object intersect, and a measurement center that is a center of a measurement region of the measurement object measured by the measurement unit are positioned at different positions.Type: GrantFiled: March 22, 2017Date of Patent: June 4, 2019Assignee: Seiko Epson CorporationInventor: Tsugio Gomi
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Publication number: 20190162594Abstract: A spectral reflectometer includes a first substrate, a first light emitting element and a second light emitting element in which a height of a first light emitting portion which is the height from the first substrate to a first light emitting portion of the first light emitting element, which is installed on the first substrate and a height of a second light emitting portion which is the height from the first substrate to a second light emitting portion of the second light emitting element are different, and a light receiver that receives light, in which the second light emitting element having a high height of the second light emitting portion is installed at a position close to an optical axis of the light received by the light receiver from the first light emitting element having a low height of the first light emitting portion.Type: ApplicationFiled: November 28, 2018Publication date: May 30, 2019Inventor: Tsugio GOMI
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Publication number: 20190154507Abstract: A measuring device is a measuring device that performs colorimetry of an evaluation patch formed on a medium and a paper white patch that is a portion exposed by the medium. The measuring device has a light source portion that irradiates the medium with an illumination light, a measurement portion that acquires an amount of light from the medium as a measurement value, a memory that holds a paper white standard value that is a reference measurement value of the paper white patch, and a colorimetry unit that corrects a measurement value of the evaluation patch based on the measurement value of the paper white patch and the paper white standard value. Even in a case where a measurement position is changed, a reflectance of the evaluation patch is accurately calculated and a chromaticity of the evaluation patch can be accurately acquired.Type: ApplicationFiled: January 28, 2019Publication date: May 23, 2019Inventor: Tsugio GOMI
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Patent number: 10228285Abstract: A measuring device is a measuring device that performs colorimetry of an evaluation patch formed on a medium and a paper white patch that is a portion exposed by the medium. The measuring device has a light source portion that irradiates the medium with an illumination light, a measurement portion that acquires an amount of light from the medium as a measurement value, a memory that holds a paper white standard value that is a reference measurement value of the paper white patch, and a colorimetry unit that corrects a measurement value of the evaluation patch based on the measurement value of the paper white patch and the paper white standard value. Even in a case where a measurement position is changed, a reflectance of the evaluation patch is accurately calculated and a chromaticity of the evaluation patch can be accurately acquired.Type: GrantFiled: September 25, 2017Date of Patent: March 12, 2019Assignee: Seiko Epson CorporationInventor: Tsugio Gomi
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Patent number: 10203494Abstract: An optical module includes a circuit substrate that has a concave portion and a flat surface, an optical sensor that is disposed inside a space, and an optical filter device that has a base which accommodates a variable wavelength interference filter and has a light-through hole through which light emitted from the variable wavelength interference filter passes and a first glass member which is disposed in the light-through hole. The first glass member is positioned inside the space. The base is bonded to the flat surface. The distance between the first glass member and the optical sensor is set to a distance at which light emitted from the variable wavelength interference filter does not interfere between the first glass member and the optical sensor.Type: GrantFiled: April 5, 2016Date of Patent: February 12, 2019Assignee: Seiko Epson CorporationInventors: Yasushi Matsuno, Tsugio Gomi
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Publication number: 20180354284Abstract: A printer that incorporates a spectrometry device includes a spectroscope, a distance measurer, and a spectrometry unit. The spectroscope includes a wavelength-selective interference filter on which light from a position of measurement in a medium is incident. The distance measurer measures the distance between the position of measurement and the spectroscope, and the spectrometry unit performs spectrometry at the position of measurement by using the spectroscope and correct a measured value obtained by the spectrometry based on the measured distance.Type: ApplicationFiled: August 21, 2018Publication date: December 13, 2018Inventor: Tsugio GOMI
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Patent number: 10076919Abstract: A printer that incorporates a spectrometry device includes a spectroscope, a distance measurer, and a spectrometry unit. The spectroscope includes a wavelength-selective interference filter on which light from a position of measurement in a medium is incident. The distance measurer measures the distance between the position of measurement and the spectroscope, and the spectrometry unit performs spectrometry at the position of measurement by using the spectroscope and correct a measured value obtained by the spectrometry based on the measured distance.Type: GrantFiled: March 25, 2016Date of Patent: September 18, 2018Assignee: Seiko Epson CorporationInventor: Tsugio Gomi
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Patent number: 10006854Abstract: A spectrometer includes a light source that radiates illumination light, and a measurement unit that measures measurement light in which illumination light is reflected by a medium. In a case where an illumination region that is a region in which the medium is irradiated with illumination light is smaller than a measurement region that is a region of the medium measurable by the measurement unit and in which the movement of the medium in the direction is within a range of an acceptable fluctuation amount, the illumination region is included in the measurement region.Type: GrantFiled: October 21, 2016Date of Patent: June 26, 2018Assignee: Seiko Epson CorporationInventor: Tsugio Gomi
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Publication number: 20180087966Abstract: A measuring device is a measuring device that performs colorimetry of an evaluation patch formed on a medium and a paper white patch that is a portion exposed by the medium. The measuring device has a light source portion that irradiates the medium with an illumination light, a measurement portion that acquires an amount of light from the medium as a measurement value, a memory that holds a paper white standard value that is a reference measurement value of the paper white patch, and a colorimetry unit that corrects a measurement value of the evaluation patch based on the measurement value of the paper white patch and the paper white standard value. Even in a case where a measurement position is changed, a reflectance of the evaluation patch is accurately calculated and a chromaticity of the evaluation patch can be accurately acquired.Type: ApplicationFiled: September 25, 2017Publication date: March 29, 2018Inventor: Tsugio GOMI
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Publication number: 20170334221Abstract: A measurement device includes a light source that radiates an illumination light on a measurement object; and a measurement unit that measures a measurement light that is reflection light obtained by the illumination light being reflected by the measurement object or transmitted light obtained by the illumination light passing through the measurement object. The illumination light is a plurality of illumination lights. In a case where the measurement object is positioned at a reference position, an illumination center at which an optical axis of each of the plurality of illumination lights and the measurement object intersect, and a measurement center that is a center of a measurement region of the measurement object measured by the measurement unit are positioned at different positions.Type: ApplicationFiled: March 22, 2017Publication date: November 23, 2017Inventor: Tsugio GOMI
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Patent number: 9766125Abstract: A spectrometry apparatus includes a light incident section on which incident light from an image pickup target is made incident, an image pickup section provided on an optical path of the incident light input from the light incident section, a variable wavelength interference filter configured to transmit light having a predetermined wavelength from the incident light input from the light incident section and capable of changing the wavelength of the light to be transmitted, and a filter-position switching section configured to advance and retract the variable wavelength interference filter to and from an optical path of the incident light.Type: GrantFiled: February 20, 2014Date of Patent: September 19, 2017Assignee: SEIKO EPSON CORPORATIONInventor: Tsugio Gomi
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Publication number: 20170122864Abstract: A spectrometer includes a light source that radiates illumination light, and a measurement unit that measures measurement light in which illumination light is reflected by a medium. In a case where an illumination region that is a region in which the medium is irradiated with illumination light is smaller than a measurement region that is a region of the medium measurable by the measurement unit and in which the movement of the medium in the direction is within a range of an acceptable fluctuation amount, the illumination region is included in the measurement region.Type: ApplicationFiled: October 21, 2016Publication date: May 4, 2017Inventor: Tsugio GOMI
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Publication number: 20160279991Abstract: A printer that incorporates a spectrometry device includes a spectroscope, a distance measurer, and a spectrometry unit. The spectroscope includes a wavelength-selective interference filter on which light from a position of measurement in a medium is incident. The distance measurer measures the distance between the position of measurement and the spectroscope, and the spectrometry unit performs spectrometry at the position of measurement by using the spectroscope and correct a measured value obtained by the spectrometry based on the measured distance.Type: ApplicationFiled: March 25, 2016Publication date: September 29, 2016Inventor: Tsugio GOMI
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Patent number: 9430987Abstract: An image display device includes a display section adapted to display an image, a photometric section including a variable wavelength interference filter adapted to transmit light with a predetermined wavelength from incident light and a photosensor adapted to detect light obtained by dispersion, and disposed so as to be opposed to the display section, and a control section adapted to control the display section and the photometric section, and the control section obtains a spectrum of the incident light based on light intensity of the light detected by the photosensor, and then performs a color correction of the display section based on the spectrum.Type: GrantFiled: January 7, 2014Date of Patent: August 30, 2016Assignee: Seiko Epson CorporationInventors: Tsugio Gomi, Kazunori Sakurai