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1. 发明公开

EP2403229A1 Spectral characteristics estimation device, image forming apparatus having the same, and spectral characteristics estimation method 有权
标题翻译： Spektralmerkmal-Bewertungsvorrichtung，Bilderzeugungsvorrichtung damit und Spektralmerkmal-Bewertungsverfahren
公开(公告)号：EP2403229A1
公开(公告)日：2012-01-04
申请号：EP11170204.9
申请日：2011-06-16
申请人： Ricoh Company, Ltd.
发明人： Shimbo, Kohei , Kamijo, Naohiro , Seo, Manabu , Kubota, Yoichi
IPC分类号： H04N1/60 , G01J3/46
CPC分类号： H04N1/6027 , G01J3/462 , G01J3/501 , G01J3/502 , G01J3/51
摘要： Spectral characteristics of an object is estimated using an extended sensor response, which includes a product of at least two light intensity signals whose wavelength ranges are partially overlapped with each other.
摘要翻译：使用扩展的传感器响应来估计对象的光谱特性，该响应包括至少两个波长范围彼此重叠的光强度信号的乘积。

2. 发明公开

EP2637003A3 Spectrometer, and image evaluating unit and image forming device incorporating the same 有权
标题翻译：光谱仪，图像评价单元和成像装置，使
公开(公告)号：EP2637003A3
公开(公告)日：2015-09-30
申请号：EP13158624.0
申请日：2013-03-11
申请人： Ricoh Company, Ltd.
发明人： Kamijo, Naohiro , Shimbo, Kohei , Kubota, Yoichi , Seo, Manabu
IPC分类号： G01J3/02 , G01J3/18 , G01J3/28 , G01J3/50 , G01J3/42 , G03G15/00 , G01J3/24
CPC分类号： G01J3/42 , G01J3/0208 , G01J3/0229 , G01J3/024 , G01J3/0262 , G01J3/0297 , G01J3/18 , G01J3/24 , G01J3/2823 , G01J3/50 , G01J2003/503 , G03G15/00 , G03G15/5062
摘要： A spectrometer includes a light source to project a light beam to a target object, an optical element including a plurality of apertures through which the light beam reflected by the target object transmits, a diffraction element to form diffracted images from a plurality of light beams having transmitted through the optical element, and a light receiving element to receive the diffracted images formed by the diffraction element and including an optical shield to block a diffracted image other than a certain-order diffracted image.

3. 发明公开

EP2365304A3 Spectroscopic characteristics acquisition unit, image evaluation unit, and image forming apparatus 审中-公开
标题翻译：用于获得光谱性质，图像评价单元和成像设备单元
公开(公告)号：EP2365304A3
公开(公告)日：2013-07-24
申请号：EP11156869.7
申请日：2011-03-03
申请人： Ricoh Company Ltd.
发明人： Seo, Manabu , Kamijo, Naohiro , Shimbo, Kohei , Kubota, Yoichi
IPC分类号： G01J3/02 , G01J3/04 , G01J3/28 , G01J3/51 , H04N9/04
CPC分类号： G01J3/02 , G01J3/0205 , G01J3/0229 , G01J3/2803 , G01J3/502
摘要： A spectroscopic characteristics acquisition unit includes a light emitting unit to illuminate a measurement target; a lens array including lenses to receive reflected light reflected from the measurement target; a light blocking member having a pinhole array including openings; a focusing unit to focus light coming from the pinhole array; a diffraction unit to diffract the light to different directions depending on wavelength of light received by the focusing unit; and a light receiving unit to receive the reflected light diffracted by the diffraction unit. The light receiving unit includes a spectroscopic sensor array having spectroscopy sensors including pixels. Each of the lenses constituting the lens array corresponds to one of the openings of the pinhole array. The numerical aperture NA of the lens in the arrangement direction in the lens array satisfies the formula NA>sin (θmax) with respect to the maximum angle of view θmax of the focusing unit.

4. 发明公开

EP2365304A2 Spectroscopic characteristics acquisition unit, image evaluation unit, and image forming apparatus 审中-公开
标题翻译： Einheit zur Beschaffung spektroskopischer Eigenschaften，Bildbewertungseinheit und Bilderzeugungsvorrichtung
公开(公告)号：EP2365304A2
公开(公告)日：2011-09-14
申请号：EP11156869.7
申请日：2011-03-03
申请人： Ricoh Company Ltd.
发明人： Seo, Manabu , Kamijo, Naohiro , Shimbo, Kohei , Kubota, Yoichi
IPC分类号： G01J3/02 , G01J3/04 , G01J3/28 , G01J3/51 , H04N9/04
CPC分类号： G01J3/02 , G01J3/0205 , G01J3/0229 , G01J3/2803 , G01J3/502
摘要： A spectroscopic characteristics acquisition unit includes a light emitting unit to illuminate a measurement target; a lens array including lenses to receive reflected light reflected from the measurement target; a light blocking member having a pinhole array including openings; a focusing unit to focus light coming from the pinhole array; a diffraction unit to diffract the light to different directions depending on wavelength of light received by the focusing unit; and a light receiving unit to receive the reflected light diffracted by the diffraction unit. The light receiving unit includes a spectroscopic sensor array having spectroscopy sensors including pixels. Each of the lenses constituting the lens array corresponds to one of the openings of the pinhole array. The numerical aperture NA of the lens in the arrangement direction in the lens array satisfies the formula NA>sin (θmax) with respect to the maximum angle of view θmax of the focusing unit.
摘要翻译：光谱特性获取单元包括照亮测量对象的发光单元; 透镜阵列，包括用于接收从测量对象反射的反射光的透镜; 具有包括开口的针孔阵列的遮光构件; 聚焦单元，用于聚焦来自针孔阵列的光; 衍射单元，用于根据由聚焦单元接收的光的波长将光衍射到不同的方向; 以及光接收单元，用于接收由衍射单元衍射的反射光。光接收单元包括具有包括像素的光谱传感器的光谱传感器阵列。构成透镜阵列的每个透镜对应于针孔阵列的一个开口。透镜阵列中透镜在排列方向上的数值孔径NA相对于聚焦单元的最大视角¸max满足公式NA> sin（¸max）。

5. 发明授权

EP2618120B1 Apparatus and method for obtaining spectral characteristics 有权
标题翻译：装置和方法，用于获得光谱特征
公开(公告)号：EP2618120B1
公开(公告)日：2014-05-14
申请号：EP13151324.4
申请日：2013-01-15
申请人： Ricoh Company Ltd.
发明人： Kubota, Yoichi , Shigemori, Toshihiro , Kamijo, Naohiro , Shimbo, Kohei , Seo, Manabu
IPC分类号： G01J3/50 , G01J3/46 , H04N1/60 , G01J3/02 , G01J3/42
CPC分类号： G01J3/42 , G01J3/027 , G01J3/463 , G01J3/501 , G01J2003/466

6. 发明公开

EP2618120A1 Apparatus and method for obtaining spectral characteristics 有权
标题翻译： Vorrichtung und Verfahren zum Erhalten von Spektralmerkmalen
公开(公告)号：EP2618120A1
公开(公告)日：2013-07-24
申请号：EP13151324.4
申请日：2013-01-15
申请人： Ricoh Company Ltd.
发明人： Kubota, Yoichi , Shigemori, Toshihiro , Kamijo, Naohiro , Shimbo, Kohei , Seo, Manabu
IPC分类号： G01J3/50 , G01J3/46 , H04N1/60 , G01J3/02
CPC分类号： G01J3/42 , G01J3/027 , G01J3/463 , G01J3/501 , G01J2003/466
摘要： A spectral characteristic obtaining apparatus includes a detection unit detecting light quantities in plural wavelength bands from a measurement target, a storage unit storing pre-obtained spectral characteristics of the measurement target, a calculation unit calculating a primary transformation matrix from the light quantities and the pre-obtained spectral characteristics of at least one reference sample and a secondary transformation matrix from one of the pre-obtained spectral characteristics corresponding to a primary wavelength band and another one of the pre-obtained spectral characteristics corresponding to a secondary wavelength band, an estimation unit estimating the spectral characteristics of the measurement target by performing a primary estimation on the light quantities in the plural wavelength bands by using the primary transformation matrix, performing a secondary estimation on a result of the primary estimation by using the secondary transformation matrix, and compositing a result of the secondary estimation with the result of the primary estimation.
摘要翻译：光谱特征获取装置包括：检测单元，用于检测来自测量对象的多个波长带中的光量;存储单元，存储预先获得的测量对象的光谱特性;计算单元，从光量计算第一变换矩阵; 从对应于主波长带的预先获得的光谱特性之一和预先获得的对应于次波长带的光谱特性中的一个获得的至少一个参考样本和次要变换矩阵的所获得的光谱特性，估计单元通过使用一次变换矩阵对多个波长带中的光量进行一次估计，通过使用二次变换矩阵对一次估计的结果进行二次估计，估计测量对象的光谱特性，以及合成利用初步估计的结果进行二次估计的结果。

7. 发明公开

EP3712705A1 SPECTRAL PROPERTY ACQUISITION APPARATUS AND IMAGE FORMING APPARATUS 有权
公开(公告)号：EP3712705A1
公开(公告)日：2020-09-23
申请号：EP20162538.1
申请日：2020-03-11
申请人： Ricoh Company, Ltd.
发明人： Taneda, Yusuke , Shimbo, Kohei , Kubota, Yoichi
IPC分类号： G03G15/00 , H04N1/00 , G01J3/52
摘要： A spectral property acquisition apparatus (10) includes: a first conveying device (30, 31, 32) to convey an object in predetermined conveying direction; a color data acquisition device (20) including a plurality of spectroscopic sensors in the conveying direction, the plurality of spectroscopic sensors receive light emitted and reflected by the object to acquire color data on the object; a second conveying device (40) to convey the color data acquisition device in a direction orthogonal to the conveying direction; and a controller (300) to estimate a spectral property of the object based on the color data. The controller (300) controls the first conveying device so as to generate predetermined tension for the object in a color data acquisition area (21) in which the color data on the object is acquired.

8. 发明授权

EP2365304B1 Spectroscopic characteristics acquisition unit, image evaluation unit, and image forming apparatus 有权
公开(公告)号：EP2365304B1
公开(公告)日：2019-02-20
申请号：EP11156869.7
申请日：2011-03-03
申请人： Ricoh Company, Ltd.
发明人： Seo, Manabu , Kamijo, Naohiro , Shimbo, Kohei , Kubota, Yoichi
IPC分类号： G01J3/02 , G01J3/04 , G01J3/28 , G01J3/51 , H04N9/04

9. 发明公开

EP2568267A1 Spectral sensor for printed images 有权
标题翻译： SpektralsensorfürDruckbilder
公开(公告)号：EP2568267A1
公开(公告)日：2013-03-13
申请号：EP12182513.7
申请日：2012-08-31
申请人： Ricoh Company, Ltd.
发明人： Shimbo, Kohei , Kamijo, Naohiro , Kubota, Yoichi , Seo, Manabu
IPC分类号： G01J3/28 , G01J3/50 , G01N21/55 , G01J3/52 , H04N1/60 , G01J3/04
CPC分类号： G01J3/524 , B41F33/00 , B41F33/0045 , G01J3/04 , G01J3/28 , G01J3/502 , G01N21/86 , H04N1/6033 , H04N1/6044
摘要： A spectral characteristic acquiring apparatus (10) is provided which includes: an area dividing part; a spectrum separating part; a light receiving part (16); and a calculating part (17), wherein the calculating part includes a transformation matrix storing part (17a) that stores a transformation matrix used for calculating the spectral characteristic corresponding to electrical signals of a first diffraction pattern group including two or more adjacent diffraction patterns, and a spectral characteristic calculating part (17b) that calculates, based on the electrical signals of the first diffraction pattern group and the corresponding transformation matrix, the spectral characteristic at the locations of the image carrying medium corresponding to the apertures of the first diffraction pattern group.
摘要翻译：提供了一种光谱特征获取装置，包括：区域划分部分; 光谱分离部分; 光接收部分（16）; 和计算部分（17），其中所述计算部分包括变换矩阵存储部分（17a），所述变换矩阵存储部分存储用于计算与包括两个或更多个相邻衍射图案的第一衍射图形组的电信号对应的光谱特性的变换矩阵，以及光谱特性计算部（17b），其基于第一衍射图案组和对应的变换矩阵的电信号计算与第一衍射图案组的孔对应的图像承载介质的位置处的光谱特性。

10. 发明授权

EP2568267B1 Spectral sensor for printed images 有权
公开(公告)号：EP2568267B1
公开(公告)日：2019-10-02
申请号：EP12182513.7
申请日：2012-08-31
申请人： Ricoh Company, Ltd.
发明人： Shimbo, Kohei , Kamijo, Naohiro , Kubota, Yoichi , Seo, Manabu
IPC分类号： G01J3/28 , G01J3/50 , G01N21/55 , G01J3/52 , H04N1/60 , G01J3/04

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