Camera system
AssigneeSeikosha Co., Ltd.
InventorTadashi Nakagawa
Life of this patent
Estimating the term…
Abstract
In a camera system for use in a camera of the type having a lens, a lens shutter, and automatic focusing utilizing the light transmitted through the lens, a light-blocking device is provided ahead of the image plane to be photographed and moveable between blocking and non-blocking positions, and a control device is operable upon manual actuation of the camera to open the shutter and provide for automatic focus adjustment utilizing the light transmitted through the lens, the control device further being operable to move the light-blocking device to its blocking position when the shutter is opened to provide for automatic focus adjustment and to subsequently move the light-blocking device to its non-blocking position to provide for exposure operation of the shutter to expose the film in the camera.
Claims11
In a camera system for use in a camera of the type having a lens with an optical axis and automatic focus adjusting means utilizing the light transmitted through the lens, the combination comprising:
- a lens shutter operable while disposed along said optical axis;
- a light-blocking means disposed ahead of the image plane to be photographed and moveable between blocking and non-blocking positions;
- a driving means which operates the lens to effect automatic focusing of the lens utilizing the light transmitted through the lens;
- and
- a control mans which is operable upon manual actuation of the camera to open the shutter and provide for automatic focus adjustment utilizing the light transmitted through the lens and said shutter, said control means also being operable to move said light-blocking means to said blocking position when said shutter is opened to provide for said automatic focus adjustment and to subsequently move said light-blocking means to said non-blocking position to provide for exposure operation of said shutter to expose the film in the camera.
In a camera system for use in a camera of the type having support structure supporting a lens and automatic focus adjusting means utilizing the light transmitted through the lens, the combination comprising:
- a lens shutter means comprising a shutter support moveably supporting shutter parts, said shutter support being mounted in a fixed position on said support structure;
- a light-blocking means disposed ahead of the image plane to be photographed and moveable between blocking and non-blocking positions;
- a driving means which operates the lens to effect automatic focusing of the lens utilizing the light transmitted through the lens;
- and
- a control means which is operable upon actuation of the camera to open said shutter parts and provide for automatic focus adjustment utilizing the light transmitted through the lens, said control means also being operable to move said light-blocking means to said blocking position when said shutter is opened to provide for said automatic focus adjustment and to subsequently move said light-blocking means to said non-blocking position to provide for exposure operation of said shutter pats to expose the film in the camera.
In a camera system for use in a camera of the type having a lens defining an optical path and automatic focus adjusting means utilizing the light transmitted through the lens, the combination comprising:
- a lens shutter means comprising a shutter support moveably supporting shutter parts, said shutter support being disposed along said optical path;
- a light-blocking means disposed ahead of the image plane to be photographed and moveable between blocking and non-blocking positions;
- a driving means which operates the lens to effect automatic focusing of the lens utilizing the light transmitted through the lens;
- and
- a control means which is operable upon manual actuation of the camera to open said moveable shutter parts while said shutter support is disposed along said optical path and provide for automatic focus adjustment utilizing the light transmitted through the lens, said control means also being operable to move said light-blocking means to said blocking position when said moveable shutter parts are opened to provide for said automatic focus adjustment and to subsequently move said light-blocking means to said non-blocking position to provide for exposure operation of said shutter parts to expose the film in the camera.
Dependencies are inferred from the claim text.