Encoding system
OwnerAlfred V. Alasiainventor
Life of this patent
Estimating the term…
Abstract
An improved camera and process of coding images and a product produced thereby is described in which an image of graphics is scrambled by operation of a pseudoscopic camera. The graphics and focal plane-type shutter are moved simultaneously relative to an objective lens and a graticule so as to produce an image of the graphics which will appear inchoate to ordinary vision. The image can be unscrambled by viewing the same through a graticule of the same nature as that used in the scrambling process.
Claims18
A three-dimensional imaging camera system for forming parallax panoramagrams of a subject, and comprising, in combination:
- lens means having a focal plane;
- means for defining a slit;
- a graticule disposed adjacent said focal plane so as to form with said lens means a combined focal plane;
- selectively operable exposure means for permitting formation, in operative cooperation with said means for defining a slit, an image of said subject at said combined focal plane;
- supporting means for supporting said subject;
- and
- means for moving said supporting means relative to said means for defining a slit, synchronously with the operation of said exposure means so as to provide an effective scanning aperture across said image plane and so as to simultaneously permit said formation of said image.
A three-dimensional imaging camera system for forming parallax panoramagrams of a subject, and comprising in combination:
- an objective lens having a focal plane;
- a graticule disposed adjacent said focal plane;
- a focal plane-type shutter positioned adjacent to said objective lens and operable for permitting formation of an image of said subject at the combined image plane of said graticule and lens and for providing an effective scanning aperture across said image plane;
- means for supporting said subject;
- and
- means for moving said supporting means synchronously with operation of said shutter so as to permit the formation of said image.
A process of producing a parallax panoramagram of a coded or scrambled form of a subject using a camera of the type having an objective lens having a focal plane, a graticule positioned adjacent said focal plane and a focal plane-type shutter movable with respect to said lens for exposing said focal plane to light traversing said lens and for providing an effective scanning aperture across said image plane, said process comprising:
- moving said focal plane-type shutter to image said subject within the depth of focus of said graticule and lens;
- synchronously moving said subject transversely to the optical axis of said lens with motion of said focal plane shutter forming an image within said depth of focus;
- and
- exposing a photosensitive element to said formed image within said depth of focus.
A sheet having a coded or scrambled form of an original artwork pattern made in accordance with the following steps:
- forming an image of said original artwork pattern in the combined image plane of a three-dimensional camera having a slit lens and a graticule having a plurality of parallel contiguous elongated elements;
- and
- exposing a photosensitive element to said image while simultaneously moving said original artwork pattern and the slit of a focal plane-type shutter of said camera in a plane adjacent said slit lens, each transversely to the elongated direction of said graticule elements.
Dependencies are inferred from the claim text.