Patent ID: 7224395
Filing Date: 2007-05-29
Classification: H04N

Abstract:
1. A camera comprising: a beam splitter configured to divide an incident light from a subject through a photographing lens; a focusing board which is arranged at a position where the incident light divided by the beam splitter forms an image and which enables viewing of a focusing state by observing the image; an eyepiece lens configured to enable a user to observe the image which is divided by the beam splitter and formed on the focusing board with a viewfinder, as a subject image; a relay lens which is provided between the focusing board and the eyepiece lens at a position where a diameter of light flux is narrowest in an optical path from the beam splitter to the eyepiece lens, and which reverses the subject image; and a shutter which is provided in a vicinity of the relay lens approximately at the position where the diameter of light flux is narrowest in the optical path from the beam splitter to the eyepiece lens, closer to the relay lens than to the eyepiece lens, and which cuts reverse-incident light from the eyepiece lens.