| 摘要 |
PROBLEM TO BE SOLVED: To provide a light condensing spectroscope with a simple mechanism for bending a crystal plate and capable of constant position emission of radiation light beam line when the crystal plate is bent. SOLUTION: A swivel stage 15 is provided with a slide block 16 comprising inside a cramp 18 supporting the both ends of square shape crystal plate 1 reflecting radiation light beam line and splitting in spectrum with support rollers 19a, 19b, 20a and 20b and comprising outside a projected arc surface 22 in the center at a virtual bending point 21 at the position apart inside for equal distance from both ends of the crystal plate 1, and a fixed guide frame 17 provided with a recessed arc surface 23 fitting the projected arc surface 22 of the slide block 16 and a drive device 26 for driving the slide block 16 along the concave arc surface 23. |
