An aspheric screen for visual display apparatus

Details An aspheric screen for visual display apparatus An aspheric screen for visual display apparatus

G - Physics

02

B

G02B 27/00 (2006.01) G03B 21/56 (2006.01) G06F 3/14 (2006.01) G09B 9/00 (2006.01)

Patent

CA 2350173

An aspheric screen (12) for visual display apparatus, the aspheric screen (12) being such that it is not a surface of revolution about an axis, and the aspheric screen (12) being such that it comprises first and second parts (6, 8) which are separated from each other by a third part (10), the first and second parts (6, 8) being such that they are curved in cross section and if connected together then they would form a surface of revolution, and the third part (10) being such that it is straight in cross sectional view and is a short cylindrical centre section.

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