Patent ID: 11960079
Assignee: ASAHI KASEL KABUSHIKI KAISHA
Field: Optics (Instruments)
Classification: CPC G  B | IPC B  G

Claim 0:
1. A wire grid polarizing plate comprising:
a plurality of fine metal wires each extending in a predetermined direction to form a fine metal wire region so that a polarization reflection axis direction of the wire grid polarizing plate is substantially parallel to the predetermined direction; and
a plurality of different fine metal wires that are directly adjacent to each other, each having a structure different from that of peripheral fine metal wires of the plurality of fine metal wires, the plurality of different fine metal wires being provided within the fine metal wire region so as to form an abnormal structure region for emitting diffracted light in reflection observation, and the plurality of different fine metal wires in the abnormal structure region being configured to emit the diffracted light as a line that corresponds to a polarizing direction of the surface having the fine metal wire region.