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    • 8. 发明申请
    • APPARATUS AND METHOD FOR OBTAINING SPECTRAL CHARACTERISTICS
    • 用于获得光谱特性的装置和方法
    • US20130182256A1
    • 2013-07-18
    • US13741513
    • 2013-01-15
    • Yoichi KUBOTANaohiro KamijoKohei ShimboManabu SeoNaoko Shigemori
    • Yoichi KUBOTAToshihiro ShigemoriNaohiro KamijoKohei ShimboManabu Seo
    • G01J3/42
    • G01J3/42G01J3/027G01J3/463G01J3/501G01J2003/466
    • 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.
    • 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,从光量计算初级变换矩阵; 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的另一个获得至少一个参考样本和次要变换矩阵的光谱特征,估计单元 通过使用主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 进行二次估计的结果,并进行初步估计。
    • 9. 发明授权
    • Spectroscopic characteristics acquisition unit, image evaluation unit, and image forming apparatus
    • 光谱特征采集单元,图像评估单元和图像形成装置
    • US08472019B2
    • 2013-06-25
    • US13037941
    • 2011-03-01
    • Manabu SeoNaohiro KamijoKohei ShimboYoichi Kubota
    • Manabu SeoNaohiro KamijoKohei ShimboYoichi Kubota
    • G01J3/28
    • G01J3/02G01J3/0205G01J3/0229G01J3/2803G01J3/502
    • 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.
    • 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角度满足公式NA> sin(tamax)。