1
Wyn K Swainson, Stephen D Kramer: Three-dimensional systems. Formigraphic Engine Corporation, Townsend and Townsend, September 8, 1981: US04288861 (91 worldwide citation)

A multiple beam or "multiphoton" absorption effect is used for creating three-dimensioal sensible objects including optical elements and three-dimensional computer-type data storage and retrieval systems. The objects and systems are made according to the invention by at least two beams of optical el ...


2
Wyn K Swainson, Stephen D Kramer: Method and media for accessing data in three dimensions. Formigraphic Engine Corporation, Townsend & Townsend, September 11, 1984: US04471470 (80 worldwide citation)

Methods and active media for controlled production and optical access of data in the form of physio-chemical inhomogeneities, such as controlled differences in absorption characteristics of molecules at selected regions. The methods involve use of at least two intersecting beams of radiation which a ...


3
Wyn K Swainson, Stephen D Kramer: Three-dimensional pattern making methods. Formigraphic Engine Corporation, Stephen S Townsend, Charles E Townsend Jr, Kenneth R Allen, June 1, 1982: US04333165 (54 worldwide citation)

Method and active media for controlled production of physical and refractive index inhomogeneities in a volume of a suspension medium by use of at least two intersecting beams of electromagnetic radiation matched to the excited state properties of molecules in the media. In addition, complex three-d ...


4
Wyn K Swainson: Method, medium and apparatus for producing three dimensional figure product. Formigraphic Engine Corporation, Townsend and Townsend, December 9, 1980: US04238840 (46 worldwide citation)

Method, apparatus and product in which a three-dimensional figure is formed in situ in a medium having two active components by causing two radiation beams to intersect in the media. The dissimilar components are selected to respond to the simultaneous presence of the beams and to either react or to ...


5
Wyn K Swainson, Stephen D Kramer: Three-dimensional patterned media. Formigraphic Engine Corporation, Townsend & Townsend, August 14, 1984: US04466080 (43 worldwide citation)

Method and active media for controlled production of physical and refractive index inhomogenetics in a volume of a suspension medium by use of at least two intersecting beams of electromagnetic radiation matched to the excited state properties of molecules in the media. In addition, complex three-di ...