| 摘要 |
PROBLEM TO BE SOLVED: To provide an exposure condition switching unit which is made small in outside dimension and also drastically made short in dimension in an optical axis direction.SOLUTION: The exposure condition switching unit includes: a case nearly square in plan view, which has apertures 12 and 32 forming an optical path 2 and has a lens unit and an imaging device unit attached to a front side and a rear side of the optical path; a filter 50 which is inserted in/removed from the optical path to switch a condition of exposing light made incident on an imaging device from a lens; an actuator 100 driving the filter; and a turning lever 70 linking the actuator with the filter. The filter is turnably attached to a supporting pin 21 at a first corner part K1 of the case, and the actuator is disposed at a second corner part K2 next to the first corner part. The turning lever is turnably attached to a supporting pin 22 at a third corner part K3 at a diagonal position to the second corner part, and an escape hole 74 for avoiding interference with a lens part of the lens unit inserted into the case is provided at a center part of the turning lever. |
