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Cycloramic image projection system

  • US 4,078,860 A
  • Filed: 10/27/1976
  • Issued: 03/14/1978
  • Est. Priority Date: 10/27/1976
  • Status: Expired due to Term
First Claim
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1. A cycloramic projection system wherein an image as viewed from a central point is projected in a complete circle about a spectator'"'"'s position from a single film, which comprises a light source, means for forming the light into a circular beam, a conical reflector arranged concentrically with the optical axis of said light beam and receiving light therefrom which is turned in a radially outward direction and condensed through the picture area of a circular loop of film concentric with the optical axis and which surrounds said reflector, a toroidal convex lens concentric with the optical axis and surrounding the film loop through which a 360°

  • image of the picture thereon is focussed and projected onto a circular screen, and means for continuously wrapping the film loop on and off around said reflector whereby a continuously changing but temporarily stationary 360°

    image is swept onto and off the screen.

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