Seamless master and method of making same

Details Seamless master and method of making same Seamless master and method of making same

B - Operations, Transporting

29

D

B29D 11/00 (2006.01) B29C 41/08 (2006.01) B29C 41/12 (2006.01) B29D 17/00 (2006.01) G03B 21/60 (2006.01) G03H 1/32 (2006.01) F21V 3/00 (2006.01) G02F 1/13357 (2006.01)

Patent

CA 2421527

Hollow, cylindrical, seamless metal master (604) for producing seamless diffuser sheets of preselected length and width. Additional aspects of the invention include a hollow cylindrical seamless invertable elastomeric master (402) and method of making the same and an apparatus and process for effecting variable diffuser recording in photosensitive medium.

L'invention se rapporte à un gabarit métallique (604) sans soudure, cylindrique et creux conçu pour la production de feuilles de diffuseur sans soudure de longueur et largeur présélectionnées. D'autres aspects de l'invention concernent un gabarit élastomère (402) réversible, sans soudure, cylindrique et creux, ainsi qu'un procédé de fabrication dudit gabarit. L'invention se rapporte également à un appareil et à un procédé permettant d'effectuer l'enregistrement d'un diffuseur variable dans un milieu photosensible.

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