Indicating apparatus within viewfinder of single lens reflex cam

Details Indicating apparatus within viewfinder of single lens reflex cam Indicating apparatus within viewfinder of single lens reflex cam

1997-09-26

1999-06-15

Perkey, W. B.

Photography

Having camera indicator

Having display in viewfinder

G03B 1720

Patent

active

059130873

ABSTRACT:
An indicating apparatus within a viewfinder of a single lens reflex camera has a quick return mirror, which reflects light from an object passing through a photographing lens to form an object image on a focusing glass, and a viewfinder optical system, through which the object image can be observed. The quick return mirror can be rotated between an inclined viewing position and a horizontal or photographing position. A photographing information projector projects an image of photographing information on a predetermined position of the finder screen. The photographing information projector is disposed on a straight line connecting a predetermined point included in a plane corresponding to the exit pupil and a predetermined arbitrary point included in the predetermined position when the optical axis is optically developed.

REFERENCES:
patent: 4949118 (1990-08-01), Yamamoto et al.
patent: 5488446 (1996-01-01), Kirigaya et al.

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