Patent ID: 7477450
Filing Date: 2009-01-13
Classification: G02B

Abstract:
1. A manufacturing method for a lenticular lens sheet comprising: manufacturing a lenticular lens substrate that comprises a plurality of lenticular lenses disposed on a first surface of a translucent substrate so that each lenticular lens has a longest dimension in a lenticular lens longitudinal direction, and convex external light-absorbing sections disposed on a second surface of the translucent substrate at positions different from condensing positions in which light from the lenticular lenses is condensed; and forming an external light-absorbing layer on slant surfaces of the external light-absorbing sections; wherein the external light-absorbing layer is formed by roll printing; wherein said roll printing is performed by rotating a printing roll in a forward direction and said roll printing using a feeding direction of the lenticular lens substrate being printed on that is parallel to the lenticular lens longitudinal direction on the lenticular lens substrate; and wherein said roll printing comprises: