Patent ID: 7561343
Filing Date: 2009-07-14
Classification: G02B

Abstract:
1. An electronic image pickup apparatus comprising: a zoom lens system which forms an image of an object; and an electronic image pickup device which receives the image formed by the zoom lens system to convert the image into an electric signal, the zoom lens system comprising: the zoom lens system further comprising: a lens arranged closest to an image side on the optical path extending from the reflective surface to the image surface having a non-circular outer shape, the outer shape of the lens being formed so that a length of the outer shape in the direction along the incident optical axis which enters the first lens unit being smaller than the length of the outer shape in the direction vertical to the incident optical axis which enters the first lens unit and the reflected optical axis reflected by the reflective surface, the following condition being satisfied: in which D y is a length of the aperture in the direction along the incident optical axis that enters the first lens unit in the state where the area of the aperture is maximized, and D