| 摘要 |
Methods of manufacturing lenses used in projection television display device screens. A method includes pressing at least one resin bearing surface of a film over a die mold pattern formed in an outer surface of one or more lens shaping rollers, and curing the resin bearing surfaces to form patterns on the surfaces of the film. The lens shaping rollers are made by forming a patterned planar surface into a cylinder that has a first set of patterns formed in an interior portion of the cylinder, inserting a die mold in the interior portion of the cylinder over the first set of patterns to form a second set of patterns, and separating the die mold from the cylinder to expose the second set of patterns in an outer portion of the die mold. The manufacturing methods produce strong and lightweight screens that are safe and easy to handle.
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