Patent ID: 9005493
Filing Date: 2015-04-14
Classification: B29D,G02B

Abstract:
1. A Method of making a 3-D stereoscopic viewing lens comprising the following steps: a. mounting a PVA film to an assembly line; b. wetting, cleaning, and washing said PVA film through said assembly line; c. softening, expanding and stretching said PVA film's x-axis through said assembly line; d. adding gap filling agent to said PVA film; e. stretching said PVA film's y-axis through a width frame holder whereby transforming said PVA film into a retarder film; f. mounting said retarder film onto a multiple holding frame; g. pressing a convex mold onto said retarder film to force said retarder film into a desired curved shape through one or more openings of said multiple holding frame; h. heating said retarder film to reduce said retarder film's moisture content; i. drying said retarder film; j. preparing a concave mold and a second convex mold; k. adding epoxy onto said concave mold; l. affixing said retarder film onto said second convex mold; m. positioning said retarder film with said second convex mold wherein said retarder film with said second convex mold is pressed down onto said epoxy with said concave mold; n. compressing said second convex mold with said concave mold; o. applying UV treatment to said second convex mold and said concave mold; p. opening said second convex mold and said concave mold; q. affixing a linear polarized film to said second convex mold; r. adding UV glue to said retarder film; s. pressing said second convex mold having said linear polarized film to said concave mold having said retarder film with UV glue; t. applying UV dry treatment to said concave mold and said second convex mold whereby said retarder film laminates with said linear polarized film to form circular polarized film; u. removing said second convex mold from said concave mold; v. applying UV glue to said circular polarized film; w. affixing a lens substrate to said second convex mold; x. compressing said second convex mold having said lens substrate with said concave mold having said circular polarized film to form a 3-D stereoscopic viewing lens; y. applying UV treatment to said second convex mold and said concave mold; z. removing said 3-D stereoscopic viewing lens from said second convex mold and said concave mold.