| 摘要 |
PURPOSE:To lessen loss of power and reduce power necessary for driving the mirror by carrying out swing back of the main mirror and up of the main mirror and submirror by a 6-node link mechanism. CONSTITUTION:The plane shape of a main mirror driving plate 15 is formed to channel shape, and main mirror supporting plates 12, 12' are pivoted on its tip through pins 5, 5'. A four-node link mechanism is formed by a mirror up lever 11 attached to an axis 1 of a stationary part, a main mirror driving plate 15 attached to an axis 2, a main mirror 14 and a stationary part. A submirror frame 17 that holds a submirror 16 in a body is pivoted turnable to main mirror supporting plates 12, 12' on the back side of the main mirror 14. A submirror 16 and a submirror controlling plate 20 add two nodes to said four-node link a six-node link as a whole. |
