Camera having short entire length
AssigneeOlympus Optical Co., Ltd.
InventorKazuteru Kawamura
Life of this patent
Estimating the term…
Abstract
A camera includes a photographing optical system in which at least one of a plurality of reflecting surfaces is disposed between a plurality of lenses and the optical path is bent by two reflecting surfaces including the at least one reflecting surface so that an image of an object falls on a film surface substantially facing the object; and an observing optical system of real image type in which one of the two reflecting surfaces is configured as a movable or path splitting surface to conduct light outside the photographing optical system so that the image of the object can be observed. Thus, the height as well as the entire length of the camera is reduced and compact design of the camera can be attained.
Claims26
A camera having a short entire length, comprising:
- a photographing optical system having a plurality of lenses for forming an image of an object on a film surface arranged thereafter;
- and
- an observing optical system of real image type for observing the image via a branch of an optical path split at a position inside or after said photographing optical system,
- wherein said camera further comprises a plurality of reflecting members including a first reflecting member interposed in said photographing optical system and a second reflecting member which is an exclusive member interposed between a most image-side lens of said photographing optical system and said film surface, one of said first and second reflecting members having a movable or beam splitting surface for allowing a beam traveling in said photographing optical system to emerge therefrom to be introduced into said observing optical system, another of said first and second reflecting members being arranged for bending said beam traveling in said photographing optical system.
A camera having a short entire length, comprising:
- a photographing optical system having a plurality of lenses for forming an image of an object on a film surface arranged thereafter;
- and
- an observing optical system of real image type for observing the image via a branch of an optical path split at a position inside or after said photographing optical system;
- wherein said camera further comprises a plurality of reflecting members including a first reflecting member interposed in said photographing optical system and a second reflecting member interposed between a most image-side lens of said photographing optical system and said film surface, said first reflecting member having a movable or beam splitting surface for allowing a beam traveling in said photographing optical system to emerge therefrom to be introduced into said observing optical system, said second reflecting member being arranged for bending said beam traveling in said photographing optical system.
Dependencies are inferred from the claim text.