| 摘要 |
PROBLEM TO BE SOLVED: To provide a grain fluoroscope capable of detecting all cracks of which the directions are varied in accordance with grains, without rotating a sample dish.SOLUTION: The fluoroscope configured to make light incident from an obliquely lower side to a transparent bottom face of a sample dish comprises: a base member; a rotation member which is disposed in a rotatable manner within the base member and formed by including a light source at one side and providing a reflecting plate for reflecting light from the light source toward the bottom face of the sample dish; and a cover member which is mounted onto the base member to form an outer frame together with the base member and includes an opening part which is positioned at an upper side of the rotation member for receiving the sample dish. The rotation member includes an operation part for rotating the rotation member, an opening is formed in the outer frame, and the operation part extends from the outer frame to the outside via the opening and can be rocked around a center of the rotation member. |
