Kawasaki Jukogyo Kabushiki Kaisha

Konica Minolta, Inc.

Hirofumi Tanaka

Osamu Masuda

Hiroaki Kitatsuji

Masataka Koyama

Koji Nakashima

Kazuhiko Hirabayashi

An optical characteristic evaluation method evaluates unevenness of an optical characteristic in an optical film based on analysis of a polarized state of light transmitting through an optical film and an analyzer. The method includes the following, measuring a phase difference and an orientation angle in a plurality of positions; and quantifying and evaluating the unevenness of the optical characteristic based on a parameter of a vector of output light calculated by a formula 1 using a vector showing a polarized state of input light and a matrix showing a polarizing characteristic of the optical film and the analyzer. The formula 1 is as follows, formula 1: F2=M&#xd7;F1, F1: Stokes vector or Jones vector of input light, F2: Stokes vector or Jones vector of output light, M: Mueller matrix or Jones matrix of the optical film as the evaluation target and the analyzer.

Optical characteristic evaluation method and optical characteristic evaluation system

An X-ray imaging system takes an X-ray of an examined part of an examination subject supported by a bed. The X-ray imaging system includes: an X-ray generator that is an X-ray source; an X-ray image pickup apparatus arranged to be opposed to the X-ray generator and configured to take an X-ray having been radiated from the X-ray generator to the examination subject and passed through the examination subject; a seven-axis vertical multi-joint first robot supporting the X-ray generator; a seven-axis vertical multi-joint second robot supporting the X-ray image pickup apparatus; and a robot controller configured to control operations of the first robot and the second robot such that the X-ray generator and the X-ray image pickup apparatus move on a spherical shell centering around an isocenter C while causing the isocenter C and the examined part to substantially coincide with each other.

X-ray imaging system

Industrial robot

Growing community of inventors

Akashi, Japan

Hirofumi Tanaka