Image sensing device, image sensing apparatus, and image sensing position switching method

摘要

An image sensing device includes a prism unit, image sensing element, fixing member, case member, support member, and a switching mechanism. The prism unit has at least two reflecting surfaces each having a free-form surface shape. The support member movably supports the prism unit within a predetermined movable range along the direction crossing light-receiving surface of the image sensing element. The switching mechanism selectively moves the prism unit to the first position at which the prism unit abuts against the fixing member or the second position at which the prism unit abuts against the case member in synchronism with the support member.