Patent ID: 7215486

Claim:
An electronic imaging device comprising: a zoom lens; and an electronic image sensor located on an image side of the zoom lens, wherein the zoom lens comprises: a most object-side lens unit located at a most object-side position, remaining fixed on an optical axis when a magnification of the zoom lens is changed and a focusing operation is performed; a most image-side lens unit located at a most image-side position; moving lens units lying between the most object-side lens unit and the most image-side lens unit, moved along the optical axis when the magnification is changed; and an aperture stop that determines an F value at a wide-angle position of the zoom lens, wherein the most object-side lens unit comprises a reflective optical component having a reflecting surface for reflecting an optical path, and wherein the electronic imaging device satisfies the following condition: F≧a /(1 μm) where a is a horizontal pixel pitch of the electronic image sensor and F is an open F value at the wide-angle position of the zoom lens.