Rotary shutter
AssigneeLucht, Inc.
InventorsPaul Erickson, David Shelander, Paul Richardson, John Evers
Life of this patent
Estimating the term…
Abstract
A rotary shutter for controlling an optical path and including a rotating disk having an opening. A sensor monitor is representative of disk rotation, while a blocking element is selectively positioned within and without the optical path dependent upon the angular position of the disk and the desire to expose the light sensitive medium.
Claims23
A rotary shutter for admitting light rays to complete an optical path and for exposing an object on a light sensitive film, the shutter comprising:
- a rotating disk having an opening which passes through the optical path;
- control means for controlling operation of the shutter;
- sensing means for providing an input signal to the control means representative of disk rotation;
- and
- means responsive to the control means for selectively blocking the optical path to the film.
A camera system having a rotary shutter, the shutter for admitting light rays to complete an optical path and for exposing an object on a light sensitive film, the system comprising:
- a rotatable disk having an opening which passes through the optical path upon rotation;
- control means for controlling operation of the camera;
- sensing means for providing the control means with an input signal representative of disk rotation;
- and
- blocking means responsive to the control means for selectively blocking the optical path.
A method of admitting light rays to complete an optical path and for exposing an object on a light sensitive film, the method comprising the steps of:
- providing a control means for controlling operation of the method;
- rotating a disk at a desired speed, the disk having an opening which passes through the optical path;
- and
- providing a means responsive to the control means for selectively blocking the optical path to the film.
Dependencies are inferred from the claim text.