Photocopying – Projection printing and copying cameras – Stereoscopic
Patent
1997-04-10
1998-09-01
Lee, Eddie C.
Photocopying
Projection printing and copying cameras
Stereoscopic
355 33, G03B 2732
Patent
active
058018123
ABSTRACT:
The filmless method and printer for making 3D and animation pictures using a digital reflection-type matrix display device such as a digital micro-mirror device to sequentially display a plurality of 2D views, a light source to illuminate the display device to produce a reflected beam, and a projection lens to form an image from the reflected beam and expose it on a lenticular print material. To fill the image area underlying each lenticule on the print material, each 2D view is projected at a different angle. Two methods can be used: 1) In the scanning method, two of the three elements including the display device, the projection lens and the print material are moved to different positions to change the projection angle; 2) In the non-scanning method, the projection lens has a large aperture sufficient for covering the total viewing angle of the lenticules. To change the projection angle, the aperture of the projection lens is partitioned into a plurality of sections so that the image of each 2D view is exposed on the print material through a different aperture section. Preferably, with the non-scanning method, the image displayed on the display device is enlarged and formed on a diffuse screen and the image so formed is then exposed on the print material by the projection lens. The 2D views for making the 3D pictures can be electronically aligned before they are displayed on the display device. Thus, the key subject alignment process during printing is eliminated.
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Kwok Wah Lo Allen
Lao Kenneth Quochuy
Chizmar John
Image Technology International, Inc.
Lee Eddie C.
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