| 摘要 |
PURPOSE:To use instantaneously a special filter at an optional time by containing a set position control mechanism of the special filter and a rotation control mechanism, in a lens mount part, and also constituting so that a remote control can be executed to said mechanisms. CONSTITUTION:A special filter turret part 16 is incorporated and used in a part of a lens mount part 4. A special filter 29 is set selectively to a position of a light incident hole 24 by a switching driving motor 20 and a gear part 21 of a plate 26 to which transparent glass 27 and the special filter 29 are fitted. A fixed position control mechanism is constituted, and also a filter rotation driving motor 22, and gear parts 23, 29 constitute a special filter rotation control mechanism. 25 is a connector and a lead for connecting these control mechanisms to a remote control system. That is to say, in addition to a standard constitution, the special filter 29 is always contained, therefore, it can be used instantaneously when it is required. |
