Seiko Epson Corporation

Tsugio Gomi

Kazunori Sakurai

Yasushi Matsuno

Hiroshi Hirayama

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.

Spectrometer and computer program

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.

Spectral reflectometer

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.

Spectroscopic measurement apparatus, electronic apparatus, and spectroscopic measurement method

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.

Measuring device and measuring method

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.

Spectrometry device, image forming apparatus, and spectrometry method

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.

Measurement device and printing apparatus

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.

Optical module and electronic apparatus

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.

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.

Spectroscopic camera

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.

Image display device

An analysis method includes spectroscopically separating light from a light source via a subject into plural wavelength ranges, imaging the subject with respect to each wavelength range, and thereby, acquiring plural spectroscopic images, dividing a subject image into plural areas in each of the spectroscopic images, analyzing a spectrum of the spectroscopically-separated lights of each area with respect to the plural spectroscopic images, and thereby, analyzing a spectral characteristic, and analyzing a component of the subject based on the spectral characteristic in at least one area of the plural areas, and has a pixel selection step of eliminating the area having the same spectral characteristic as the spectral characteristic with respect to the light from the light source from objects of the analysis of the component before the analyzing of the component.

Analysis method and imaging apparatus

A light-emitting device includes a light-emitting element that has at least a light-emitting layer, a switching element that drives the light-emitting element, layered wiring lines that connect at least the light-emitting element and the switching element to each other, a substrate on which the light-emitting element, the switching element, and the layered wiring lines are provided, and a sealing substrate that is provided on the substrate with a plurality of sealing members interposed therebetween, and covers the light-emitting element. The plurality of sealing members include first and second sealing members. The first sealing member surrounds the periphery of the light-emitting element and is provided so as to at least partially overlap surface regions of the substrate where the light-emitting element, the switching element, and the layered wiring lines are provided. The second sealing member surrounds the periphery of the first sealing member.

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Fujimi, Japan

Tsugio Gomi