Howard N Buck

US Patent:

47324538, Mar 22, 1988

Filed:

Dec 10, 1984

Appl. No.:

6/680342

Inventors:

Roger L. de Montebello - New York NY
Ronald P. Globus - New York NY
Howard S. Buck - New York NY

Assignee:

Integrated Images, Inc. - New York NY

International Classification:

G02B 2722
G02B 2700
B29D 1100
G03B 3508

US Classification:

350130

Abstract:

A method is disclosed of forming apparatus for use in a three stage integral photography process that includes a camera for taking the integral photographs; printing apparatus for converting the psuedoscopic negative produced by the camera into an orthoscopic positive; and a viewing screen for the positive. The apparatus comprises arrays of lenslets formed on transparent plastic sheets and plates with arrays of apertures on the same centers as the lenslets and the elements must have very precise dimensional relationships to one another. In the method, all of the elements are produced by symmetrical, multi-stage processes using the same array of elemental mold parts in the first stage in the process. One elemental mold part or "Janus plug" is provided for each optical element in the array. The plugs consist of hexagonal-sided bars, each having one end formed with a domed side used in the formation of the viewing screen and an opposite cylindrically recessed side used to receive spherical inserts for forming the camera array and annular bushings used to form inserts in the camera/printing apparatus.