Patent ID: 7746554
Filing Date: 2010-06-29
Classification: G02B,G03B

Abstract:
1. A lenticular lens formed on a base film, comprising: multiple convex unit lenses disposed on the base film with their long sides parallel to each other, the two edges of each unit lens on its section vertical to the longer direction being a pair of curves spreading outwardly from the upside of the cross section, situated on the side opposite to the base film, to the base of the cross section, situated on the base film side, the angle θ between a tangent to the curves of each unit lens and a line parallel to the upside and base of the unit lens being acute, the angle θ with any line parallel to the upside and base of the unit lens being in a range represented by the following inequality: where d is the length of half of the distance between the two curves, and p is the pitch at which the unit lenses are disposed.