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Three-dimensional drawing tool
   
Document Number
US Patent 4343091
Issued Date
August 10, 1982
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Inventors
Stephens; Peter H. (San Francisco, CA)
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Abstract
A drawing tool comprises a pair of transparent screens each defining a drawing surface on the underside thereof. A powderized etching composition is contained in a closed and sealed chamber beneath each drawing surface to fully coat the surface upon shaking of the drawing tool. An operator-controlled joy stick can be manipulated universally to simultaneously move drawing points along the drawing surfaces to scribe nearly identical two-dimensional designs thereon. An optical viewer mounted upon the screens enables the operator to stereoscopically view the individual images created by the designs as a three-dimensional image.
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Three-dimensional drawing tool - US Patent 4343091 Drawing
Drawing from US Patent 4343091
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Number of Claims:
38
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Owner
Published
August 10, 1982
Application Number
06/245,306
Filed
March 19, 1981
US Classification
33/18.1  
Int'l Classification
B43L   1/12   (20060101)   B43L   1/00   (20060101)   B43L   13/00   (20060101)   G02B   27/22   (20060101)   A63F   9/06   (20060101)  
USPTO Field of Search
33/18R   33/23C   33/23F   33/23R  
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4541180 - Method for creating and viewing a composite three-dimensional design

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Claims
Description
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