| 摘要 |
PURPOSE:To measure automatically the main vibration orientation and phase delay of a birefringence substance quickly at high accuracy by using a rotary polarizer and a rotary analyses. CONSTITUTION:A light beam with less polarization coming out of a single color light source composed of a light source 1 and a spectroscope or an interference filter 2, or laser is irradiated on the arbitrary part of the birefringence substance 5 made into a plate-like shape, which is fitted on a biaxial jogging device 6, through the rotary polarizer 4, and the polarized light component of the transmitted light is measured by a photodetector 9 through a rotary analyses 7. With the use of a microprocessor having display and arithmetic processing functions, a control, measurement, display and arithmetic processing part 10 adjusts the polarized light orientation of the rotary polarizer 4, that of the rotary analyses 7 and the biaxial jogging device 6 setting the irradiated part of the plate-like birefringence substance 5, and measures an electrical output signal from the photodetector 9. Thus, the birefringence and distribution can be automatically measured quickly at high accuracy. |
