公开(公告)号：US20150062582A1

公开(公告)日：2015-03-05

申请号：US14454052

申请日：2014-08-07

Applicant: RICOH COMPANY. LTD.

Inventor： Kazuhiko ADACHI ,  Yoshihiro OBA ,  Toshihiro ISHII ,  Fumikazu HOSHI ,  Sunao CHUBACHI ,  Yoshihiro MISAKA

IPC: G01J4/00 ,  G03G15/00

CPC classification number: G01N21/21 ,  G01B11/06 ,  G01G9/00 ,  G01N21/4738 ,  G01N21/59 ,  G01N2201/06113 ,  G01N2201/062 ,  G01N2201/0691 ,  G01N2201/105 ,  G03G15/5029 ,  G03G2215/00616 ,  G03G2215/00738 ,  G03G2215/00742

Abstract: A sensor apparatus includes an irradiation system with a light source configured to emit linearly polarized light of a first polarization direction onto a sheet-like object, in a direction oblique to a direction orthogonal to a surface of the object, a first photodetector arranged on an optical path of light that is emitted from the irradiation system and then is reflected at the object by regular reflection, a first optical element, arranged on an optical path of light reflected by diffuse reflection from an incidence plane of the object, configured to transmit linearly polarized light of a second polarization direction that is orthogonal to the first polarization direction, a second photodetector configured to receive light that has passed through the first optical element, and a detection unit configured to detect at least one of basis weight and thickness of the object.

Abstract translation: 一种传感器装置，包括具有光源的照射系统，被配置为沿与物体的表面正交的方向倾斜的方向将第一偏振方向的线偏振光发射到片状物体上;第一光电检测器， 从照射系统发射的光的光路，然后通过规则反射在物体处反射;第一光学元件，布置在从物体的入射平面漫反射反射的光的光路上，被配置为线性地透射 与第一偏振方向正交的第二偏振方向的偏振光，被配置为接收通过第一光学元件的光的第二光电检测器，以及检测单元，被配置为检测物体的基重和厚度中的至少一个 。

公开(公告)号：US20210290145A1

公开(公告)日：2021-09-23

申请号：US17190622

申请日：2021-03-03

Applicant: Ricoh Company, Ltd.

Inventor： Yoshihiro MISAKA ,  Hirofumi MORISE ,  Kiwamu KUDO

IPC: A61B5/00 ,  A61B5/246

Abstract: An information analysis apparatus includes a feature quantity calculation unit and an output unit. The feature quantity calculation unit is configured to calculate a feature quantity on a biological body of a single subject or a group of a plurality of subjects, from data groups acquired under N acquisition conditions (k) where N is equal to or larger than three. The output unit is configured to output the feature quantity. The feature quantity is represented by Expression (1) below using numbers of acquisitions (nk), average values ( ), unbiased variances (Sk2), and contribution ratios (wk) under the acquisition conditions (k). t = w 1 ⁢ 〈 X 1 〉 + w 2 ⁢ 〈 X 2 〉 + w 3 ⁢ 〈 X 3 〉 + … + w N ⁢ 〈 X N 〉 w 1 2 × S 1 2 n 1 + w 2 2 × S 2 2 n 2 + w 3 2 × S 3 2 n 3 + … + w N 2 × S N 2 n N ( 1 )