OPTICAL ELEMENT
PURPOSE:To obtain a variable focus lens of simple constitution which has large variation in focal length by projecting or recessing a volume type elastic body itself from the opening of a member in a convex or concave shape, and deforming the optical surface formed of the elastic body at the opening...
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Main Authors | , , , , |
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Format | Patent |
Language | English |
Published |
13.05.1985
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Subjects | |
Online Access | Get full text |
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