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公开(公告)号：US20240192082A1
公开(公告)日：2024-06-13
申请号：US18286250
申请日：2022-03-14
发明人： Koyo WATANABE , Hisanari TAKAHASHI , Takashi INOUE
IPC分类号： G01M11/02
CPC分类号： G01M11/0207
摘要： A dispersion measuring device includes a pulse forming unit, a light detection unit, a control unit, and an arithmetic operation unit. The control unit selectively outputs a first phase pattern and a second phase pattern. The pulse forming unit forms an optical pulse train from initial pulsed light, the optical pulse train including a plurality of optical pulses having a time difference from each other and having different center wavelengths from each other. The light detection unit detects a temporal waveform of the optical pulse train. The arithmetic operation unit estimates a wavelength dispersion amount of a measurement object based on a feature amount of the temporal waveform of the optical pulse train. When the first phase pattern is output, a pulse having a long center wavelength is generated first. When the second phase pattern is output, a pulse having a short center wavelength is generated first.
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公开(公告)号：US20160322417A1
公开(公告)日：2016-11-03
申请号：US15104359
申请日：2014-12-16
发明人： Terumasa NAGANO , Kenichi SATO , Ryutaro TSUCHIYA
IPC分类号： H01L27/146 , H01L31/115
CPC分类号： H01L27/14663 , H01L27/1446 , H01L27/14603 , H01L27/14609 , H01L27/14636 , H01L27/14658 , H01L27/14676 , H01L31/1075 , H01L31/115
摘要： Disclosed is an optical detector in which a boundary line BY defining an edge of a semiconductor region 14 is covered with signal read wiring E3 and a capacitor is configured between the semiconductor region 14 and the signal read wiring E3. High frequency components peak components of a carrier are quickly extracted to the outside via the capacitor, but the signal read wiring E3 covers the boundary line BY so that a semiconductor potential in the vicinity of the boundary line is stabilized and an output signal is stabilized.
摘要翻译： 公开了一种光检测器，其中限定半导体区域14的边缘的边界线BY被信号读取布线E3覆盖，并且在半导体区域14和信号读取布线E3之间配置电容器。 载波的高频分量峰值分量通过电容器迅速提取到外部，但是信号读取线E3覆盖边界线BY，使得边界线附近的半导体电位稳定并且输出信号稳定。
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公开(公告)号：US20240201046A1
公开(公告)日：2024-06-20
申请号：US18286272
申请日：2022-03-14
发明人： Koyo WATANABE , Hisanari TAKAHASHI , Takashi INOUE
IPC分类号： G01M11/00
CPC分类号： G01M11/338
摘要： A dispersion measuring device includes a pulsed laser light source, a pulse forming unit, a correlator, and an arithmetic operation unit. The pulse forming unit forms an optical pulse train from an optical pulse output from the pulsed laser light source. The correlator detects a temporal waveform of correlated light formed from the optical pulse train. The arithmetic operation unit estimates a wavelength dispersion amount of an optical component disposed between the pulsed laser light source and the correlator, based on the temporal waveform of the correlated light. A dispersion medium gives a group delay dispersion to the optical pulse train to increase the peak intensity of the correlated light to be equal to or greater than a threshold value of the correlator. The pulse forming unit gives a group delay dispersion having a sign opposite to the group delay dispersion given to the optical pulse train to the optical pulse.
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公开(公告)号：US20240006145A1
公开(公告)日：2024-01-04
申请号：US18038262
申请日：2021-09-14
发明人： Hiroki KAWAKAMI
IPC分类号： H01J35/14 , G01N23/04 , G01N23/083
CPC分类号： H01J35/147 , G01N23/04 , G01N23/083 , G01N2223/20
摘要： An X-ray generation device includes an electron gun emitting an electron beam, an X-ray generation target including a plurality of target parts generating X-rays in response to incidence of the electron beam from the electron gun, and an irradiation area switching unit switching an area of the X-ray generation target irradiated with the electron beam between a first irradiation area and a second irradiation area. The number of target parts included in the first irradiation area is larger than the number of target parts included in the second irradiation area. An area of the target parts included in the first irradiation area is larger than an area of the target parts included in the second irradiation area.
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公开(公告)号：US20240361375A1
公开(公告)日：2024-10-31
申请号：US18683921
申请日：2022-07-29
发明人： Katsuhiro NAKAMOTO , Hisaya HOTAKA
IPC分类号： G01R31/26
CPC分类号： G01R31/2635
摘要： An estimation device for estimating a conversion factor which is a ratio between the number of photoelectrons generated from a pixel in response to inputting of light to the pixel and an electrical signal intensity output in response to the number of photoelectrons is provided. The estimation device includes: an acquisition unit configured to acquire a plurality of data groups including the electrical signal intensity for each of a plurality of pixels when light is input to the plurality of pixels; and a calculation unit configured to calculate the conversion factor for each of the plurality of pixels from the plurality of data groups based on a likelihood function indicating a likelihood of the conversion factor corresponding to the output electrical signal intensity.
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公开(公告)号：US20240356306A1
公开(公告)日：2024-10-24
申请号：US18630166
申请日：2024-04-09
IPC分类号： H01S5/34 , H01S5/02216 , H01S5/02253 , H01S5/14
CPC分类号： H01S5/3402 , H01S5/02216 , H01S5/02253 , H01S5/141
摘要： A laser module includes a QCL element, a diffraction grating portion, a first lens member configured to be disposed between the first end face and the diffraction grating portion, and a second lens member configured to be disposed at a position facing a second end face of the QCL element, and a package configured to house the QCL element, the diffraction grating portion, and the first lens member. A distance in an X-axis direction between an incident surface of the first lens member on which the first light is incident and the first end face is shorter than a distance in the X-axis direction between an incident surface of the second lens member on which the third light is incident and the second end face.
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公开(公告)号：US20240356301A1
公开(公告)日：2024-10-24
申请号：US18630238
申请日：2024-04-09
IPC分类号： H01S5/02253 , H01S5/02216 , H01S5/14 , H01S5/34
CPC分类号： H01S5/02253 , H01S5/02216 , H01S5/141 , H01S5/3402
摘要： A laser module according to an embodiment includes a QCL element, a diffraction grating portion configured to diffract and reflect first light emitted from a first end face of the QCL element and return second light to the first end face, and a first portion configured to be disposed between the first end face and the diffraction grating portion, allow the first light and the second light to pass therethrough, and collimate the first light. When viewed from a Y-axis direction, the diffraction grating portion is inclined with respect to a Z-axis direction. A position of a beam waist of the first light collimated by the first portion in an X-axis direction is located between a position of one end of the diffraction grating portion in the Z-axis direction and a position of the other end of the diffraction grating portion in the Z-axis direction.
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公开(公告)号：US20240355601A1
公开(公告)日：2024-10-24
申请号：US18682295
申请日：2022-08-05
摘要： In a photoelectric conversion device, the potential control unit controls electric potentials applied to the meta-surface. The meta-surface includes a plurality of patterns which are space away from each other. The plurality of patterns include an antenna portion and at least one bias portion. The antenna portion extends in a predetermined direction and emits the electron in response to incidence of the electromagnetic wave. The potential control unit switches a first state and a second state by controlling the electric potentials applied to the plurality of patterns. In the first state, a component of an electric field from the bias portion toward the antenna portion in a predetermined direction is positive. In the second state, a component of an electric field from the bias portion toward the antenna portion in the predetermined direction is negative.
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公开(公告)号：US12124215B2
公开(公告)日：2024-10-22
申请号：US17347633
申请日：2021-06-15
CPC分类号： G03H1/041 , G03H1/0005 , G03H1/268 , G03H2001/0088 , H04N5/7416 , H04N9/31 , H04N13/393
摘要： An image output device of the disclosure facilitates enlargement of a stereoscopic image and includes a spatial light modulator, an image irradiation unit, and an address light irradiation unit. The spatial light modulator includes a main surface, a back surface, and pixels, reflects light emitted to the main surface, and modulates a phase of the light for each pixel. The image irradiation unit irradiates the main surface with light including an optical image. The address light irradiation unit irradiates the back surface with address light including a diffraction grating pattern. Each pixel of the spatial light modulator changes a phase modulation amount according to the intensity of the address light from a back surface. The address light irradiation unit dynamically change a diffraction grating pattern's direction on the back surface. The image irradiation unit irradiates the main surface with the optical image corresponding to the diffraction grating pattern's direction.
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公开(公告)号：US12119612B2
公开(公告)日：2024-10-15
申请号：US17414070
申请日：2019-12-11
CPC分类号： H01S5/026 , H01S5/0236 , H01S5/04254 , H01S5/04256 , H01S5/11 , H01S5/34333 , G06F30/10 , H01S5/3436
摘要： The light-emitting element of an embodiment outputs a clear optical image while suppressing light output efficiency reduction, and includes a substrate, a light-emitting unit, and a bonding layer. The light-emitting unit has a semiconductor stack, including a phase modulation layer, between first and second electrodes. The phase modulation layer has a base layer and modified refractive index regions, and includes a first region having a size including the second electrode, and a second region. Each gravity center of the second region's modified refractive index region is arranged by an array condition. The light from the stack is a single beam, and regarding a first distance from the substrate to the stack's front surface and a second distance from the substrate to the stack's back surface, a variation amount of the first distance along a direction on the substrate is smaller than a variation amount of the second distance.
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