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Inventor: Kelso; David W.
Address: Oakland, CA
No. of patents: 2
Patents:
| Patent Number |
Title Of Patent |
Date Issued |
| 4231634 |
Optical image multiplying device |
November 4, 1980 |
| An optical image multiplying device includes an object cell containing a plurality of tumbler objects, each of which carries a pictorial image on a selected region thereof. The pictorial region of each object includes transparent portions which permit the viewer to see detail of the obje |
| 4162117 |
Optical image multiplying device |
July 24, 1979 |
| An optical device for multiplying pictorial images which includes a plurality of pictorial objects mounted for movement within a compartment positioned adjacent two plane mirrors placed at an angle so that changes of position of the objects may be viewed as an infinite symmetrically |
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