Patent ID: 7927687
Filing Date: 2011-04-19
Classification: G02B,Y10T

Abstract:
1. An optical element, comprising: a transmitting optical film; a transmitting optical substrate; an IR-cut glass disposed between the transmitting optical substrate and the transmitting optical film, and a pressure sensitive adhesive, wherein the transmitting optical substrate is bonded to the IR-cut glass with the pressure sensitive adhesive, the optical element has an ambient air opening structure in which an end part of the pressure sensitive adhesive directly contacts an ambient air, the pressure sensitive adhesive is made of a polymer primarily containing at least one monomer selected from acrylic acid alkoxyalkyl ester and methacrylic acid alkoxyalkyl ester, and a mixing weight ratio of the polymer is in a range from 60% to 100% inclusive wherein at least one part of the end part of the pressure sensitive adhesive is protruded from a periphery of the transmitting optical substrate.