Patent ID: 7843647
Filing Date: 2010-11-30
Classification: G02B,G03B,H04N

Abstract:
1. An imaging apparatus comprising: a high zoom ratio zoom lens system comprising, in order from an object, a first lens group having positive refractive power, a second lens group having negative refractive power, a third lens group, fourth lens group, and a fifth lens group, upon zooming from a wide-angle end state to a telephoto end state, the first lens group, the second lens group, the third lens group, and the fourth lens group being moved along an optical axis; a solid-state imaging device capturing an object image formed by the high zoom ratio zoom lens system; a detecting member that detects variation in a position of the object image; a driving member that moves the solid-state imaging device in a direction substantially perpendicular to the optical axis; a control member that controls the driving member in order to correct variation in the position of the object image; and a shield member with an aperture portion for limiting bundle of rays incident on the periphery of the most object side lens in the first lens group of the high zoom ratio zoom lens system; and the following conditional expression being satisfied: where Φ 0 denotes an effective diameter of the most object side lens in the first lens group of the high zoom ratio zoom lens system, Φ 1 denotes a diameter of the aperture portion in the shield member, Δht denotes the maximum moving amount of the solid-state imaging device in the telephoto end state, ft denotes a focal length of the high zoom ratio zoom lens system in the telephoto end state, and L denotes a total lens length of the high zoom ratio zoom lens system in the wide-angle end state.