Patent ID: 7784958
Filing Date: 2010-08-31
Classification: G02B,G02F

Abstract:
1. A lens sheet, wherein a trapezoidal prism array that is a first lens array is disposed on one surface of a light transmissive base material with an apex angle of the trapezoidal prism array that ranges from 70 degrees to 110 degrees, a triangular prism array that is a second lens array is disposed within an intersection angle range of 70 degrees to 110 degrees in an apex portion of the trapezoidal prism array with an apex angle of the triangular prism array that ranges from 70 degrees to 110 degrees, a lens height of the triangular prism array is lower than a lens height of the trapezoidal prism array, and the apex portion of the trapezoidal prism array is flush with an apex portion of the triangular prism array.