| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an imaging device that prevents an inner surface reflection of a mirror rear surface and a reverse incident to a finder in the imaging device including a quick-return mirror mechanism and enabling an image pickup element to meter light or a distance, and can prevent the image pickup element from being damaged in a pre-photographing state.SOLUTION: An imaging device comprises: a photographing lens 300; an image pickup element 201; a half mirror that, when observing a subject, guides a part of a subject ray flux to a finder optical system and guides a part of the subject ray flux to the image pickup element; a quick-return mirror mechanism that, when photographing the subject, retracts the half mirror from a photographing optical path and guides the subject ray flux to a focal plane; and a light-shield blade drive mechanism of the half mirror rear surface that is composed of a plurality of divided light-shield blades movable in parallel with a rear surface of the half mirror, and when the half mirror is present at a subject observation position, causes the light-shield blade to be retreated to one end part of the half mirror, and when the half mirror is retreated to a subject photographing position, causes the light-shield blade to be spreaded.</p> |
