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公开(公告)号：US20160379095A1
公开(公告)日：2016-12-29
申请号：US15185373
申请日：2016-06-17
发明人： Takeshi NOZAWA
CPC分类号： G06K15/027 , G01J3/021 , G01J3/0229 , G01J3/06 , G01J3/26 , G01J3/2823 , G01J3/46 , G01J3/463 , G01J3/52 , G01J2003/061 , G01J2003/1226 , G01J2003/2826 , H04N1/00015 , H04N1/00023 , H04N1/00034 , H04N1/00045 , H04N1/00068 , H04N1/00082 , H04N1/6036 , H04N1/6044
摘要： A printer includes a spectroscope that has a variable wavelength interference filter which incidents light from a measurement region, and a light receiving section which receives light from the variable wavelength interference filter and which outputs a detection signal according to an amount of received light, a carriage moving unit which relatively moves the spectroscope along one direction with respect to a measurement target of spectrometry and moves the measurement region with respect to the measurement target, and a timing detection circuit which has a differential circuit that differentiates the detection signal and outputs a differentiation signal, wherein in a case where the measurement target is a color patch, spectrometry in which the amount of received light is detected starts based on the differential signal.
摘要翻译： 打印机包括：具有可变波长干涉滤光器的分光镜，其具有来自测量区域的光;以及光接收部，其从可变波长干涉滤光器接收光，并根据接收光的量输出检测信号;托架 移动单元，其相对于光谱测量对象沿着一个方向相对移动所述分光器，并且使所述测量区域相对于所述测量对象移动;以及定时检测电路，其具有差分电路，所述差分电路区分所述检测信号并输出微分信号 其中，在所述测量对象是色标的情况下，基于所述差分信号开始检测到所接收的光的量的光谱测定。
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2.发明申请公开(公告)号：US20130278933A1
公开(公告)日：2013-10-24
申请号：US13922639
申请日：2013-06-20
发明人： Takeshi NOZAWA
CPC分类号： G02B26/001 , G01J3/26 , G01J3/51 , G01J3/513
摘要： An optical filter includes a first variable wavelength bandpass filter that extracts light of a first wavelength band and has first and second spectral bands and a second variable wavelength bandpass filter that extracts light of a second wavelength band adjacent to the first wavelength band and has third and fourth spectral bands. Part of the period during which the light of the first spectral band is extracted overlaps with the period during which the light of the third spectral band is extracted, and part of the period during which the light of the second spectral band is extracted overlaps with the period during which the light of the fourth spectral band is extracted.
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3.发明申请OPTICAL FILTER, OPTICAL FILTER MODULE, SPECTROMETRIC MEASUREMENT APPARATUS, AND OPTICAL APPARATUS 审中-公开光学滤光片，光学滤光片，光谱测量装置和光学设备公开(公告)号：US20150177510A1
公开(公告)日：2015-06-25
申请号：US14617374
申请日：2015-02-09
发明人： Takeshi NOZAWA
IPC分类号： G02B26/00
CPC分类号： G02B26/001 , G01J3/26 , G01J3/51 , G01J3/513
摘要： An optical filter includes a first variable wavelength bandpass filter that extracts light of a first wavelength band and has first and second spectral bands and a second variable wavelength bandpass filter that extracts light of a second wavelength band adjacent to the first wavelength band and has third and fourth spectral bands. Part of the period during which the light of the first spectral band is extracted overlaps with the period during which the light of the third spectral band is extracted, and part of the period during which the light of the second spectral band is extracted overlaps with the period during which the light of the fourth spectral band is extracted.
摘要翻译： 滤光器包括提取第一波长带的光并具有第一和第二光谱带的第一可变波长带通滤波器和提取与第一波长带相邻的第二波长带的光的第二可变波长带通滤波器， 第四个光谱带。 提取第一光谱带的光的周期的一部分与提取第三光谱带的光的周期重叠，并且提取第二光谱带的光的一部分周期与第二光谱带的光重叠 提取第四光谱带的光的周期。
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公开(公告)号：US20220397456A1
公开(公告)日：2022-12-15
申请号：US17805922
申请日：2022-06-08
发明人： Takeshi NOZAWA
摘要： An autofocusing method includes causing light having n wavelengths different from one another to sequentially pass through a spectral filter and acquiring n image frames corresponding to the n wavelengths, n being an integer greater than or equal to two, selecting a wavelength corresponding to the image frame having the largest statistical value from the n image frames, the statistical value being one of the average, median, and mode of class values of pixels contained in a first region out of entire measurement pixels in each of the image frames, and determining a focusing point in a second region wider than the first region out of the entire measurement pixels while causing the light having the selected wavelength to pass through the spectral filter.
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公开(公告)号：US20180149857A1
公开(公告)日：2018-05-31
申请号：US15815832
申请日：2017-11-17
发明人： Takeshi NOZAWA
摘要： An optical module includes: a wavelength variable interference filter that includes two reflection films facing each other via an inter-reflection-film gap and an electrostatic actuator changing a gap amount of the inter-reflection-film gap; and a voltage controller that is driven in accordance with a plurality of supply voltages from a power supplier and applies a driving voltage to the electrostatic actuator. The voltage controller reduces the driving voltage when one of the plurality of supply voltages is less than a predetermined threshold.
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公开(公告)号：US20130107260A1
公开(公告)日：2013-05-02
申请号：US13646935
申请日：2012-10-08
发明人： Takeshi NOZAWA
IPC分类号： G01J3/42
CPC分类号： G01J3/42 , G01J3/027 , G01J3/0297 , G01J3/10 , G01J3/26 , G01J3/32 , G02B26/001
摘要： A spectrometer includes a light source section that includes a plurality of LEDs having different emission wavelengths, a variable wavelength interference filter that selectively extracts light of a predetermined wavelength, a detector that detects the amount of light, and a control circuit section. The control circuit section includes a mode switching section that switches a calibration mode and a measurement mode, an outside light analysis section that analyzes characteristics of outside light in the calibration mode, a reference light setting section that set the amount of light emitted from each of the LEDs on the basis of the characteristics of the outside light, and a light source driving section that drives each of the LEDs on the basis of the amount of light emitted which is set in the measurement mode.
摘要翻译： 光谱仪包括光源部分，其包括具有不同发射波长的多个LED，选择性地提取预定波长的光的可变波长干涉滤光器，检测光量的检测器和控制电路部分。 控制电路部分包括切换校正模式和测量模式的模式切换部分，分析校准模式中的外部光的特性的外部光分析部分，设置从每个模式发出的光量的参考光设定部分 基于外部光的特性的LED，以及基于在测量模式中设定的发光量来驱动每个LED的光源驱动部。
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