Lens system for generating an anamorphic image from a non-anamorphic image
OwnerFrank William Harrisinventor
Life of this patent
Estimating the term…
Abstract
A system for displaying an anamorphic image on a viewing surface comprises a screen having a viewing surface and an image source configured to display the anamorphic image on the viewing surface such that an image viewed on the viewing surface appears undistorted from a viewing point. In addition, the system may also include a reflective lens having a convex exterior surface and a refractive lens having a plurality of surfaces to redirect light toward an image capture device. Further, the system may include an image conversion module for converting a non-anamorphic image into the anamorphic image suitable for displaying on the viewing surface and a selected portion of the anamorphic image into at least one non-anamorphic image.
Claims13
A lens system for redirecting light rays within a field of view toward a focal plane, the lens system comprising:
- a first lens having a first optical medium and a first non-spherical exterior surface opposite a first non-spherical interior surface, the first optical medium having a first refractive index;
- a second lens positioned adjacent the first lens, the second lens having a second optical medium and a second non-spherical interior surface opposite a second non-spherical exterior surface, the second optical medium having a second refractive index;
- and
- an optical medium providing a refractive interface with the first and second non-spherical interior surfaces, the optical medium having a refractive index that is different from the first refractive index and the second refractive index,
- the first non-spherical exterior surface, the first non-spherical interior surface, the second non-spherical interior surface, and the second non-spherical exterior surface configured so that light rays propagating through the first lens and refracted by the first non-spherical exterior surface and the first non-spherical interior surface propagate through the optical medium before refraction by the second non-spherical interior surface and the second non-spherical exterior surface and thereafter converge to a focal point between the focal plane and the second non-spherical exterior surface.
Dependencies are inferred from the claim text.