Polarizing sheet and polarizing lens provided with same

• Main Authors: OMAE, Hitomi, FUJINAKA, Toshihiko
• Format: Patent
• Language: English
• Published: 19.03.2020
• Subjects: CONTACT LENSES; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; PERFORMING OPERATIONS; PHYSICS; PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCESIN A PLASTIC STATE; SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURESAS SPECTACLES; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

Provided is a polarizing sheet which is free from the occurrence of a white spot even if subjected to bending, and which is able to be provided with a desired curved shape with high accuracy. A polarizing sheet according to the present invention has a configuration wherein a polyamide resin film (1), a polarizing film and a polyamide resin film (2) are sequentially laminated in this order, and is characterized in that: the retardation value of the polyamide resin film (1) is 10-3,000 nm; and the retardation value of the polyamide resin film (1) and the retardation value of the polyamide resin film (2) satisfy formula (r). (Retardation value of polyamide resin film (1)) - (Retardation value of polyamide resin film (2)) ≥ 10 nm (r)