Method for manufacturing optical element

• US 20060185983A1
• Filed: 02/14/2006
• Published: 08/24/2006
• Est. Priority Date: 02/21/2005
• Status: Active Grant

• Current Assignee: Seiko Epson Corporation (Seiko Group)
• Original Assignee: Seiko Epson Corporation (Seiko Group)
• Inventors: Kumai, Yoshitomo, Sawaki, Daisuke
• Granted Patent: US 7,608,474 B2
• Time in Patent Office: Days
• US Class Current: 205/191
• CPC Class Codes: C25D 5/022 using masking means
• CPC Class Codes: C25D 5/10 Electroplating with more than one layer of the same or of different metals for bearings C25D7/10
• CPC Class Codes: G02B 5/3058 comprising electrically conductive elements, e.g. wire grids, conductive particles

Abstract

A method for manufacturing an optical element having a metal wire grid containing a plurality of metal wires on a substrate includes forming the metal wire grid using an electrolytic plating process.

Claims

1. A method for manufacturing an optical element having a metal wire grid containing a plurality of metal wires on a substrate, comprising forming the metal wire grid using an electrolytic plating process.

2. The optical element manufacturing method according to claim 1, wherein the electrolytic plating process is an electrodeposition process using a plating bath.

3. The optical element manufacturing method according to claim 1, wherein a multi-layered metal wire grid is formed as the metal wire grid, by performing the electrolytic plating process to form a first layer of the metal wires, and thereafter repeating the electrolytic plating process or a non-electrolytic plating process at least one more time.

4. The optical element manufacturing method according to claim 1, wherein a multi-element metal wire grid is formed as the metal wire grid by using two or more kinds of metal.

5. The optical element manufacturing method according to claim 1, wherein a metal to be grown via the electrolytic plating process includes one or more kinds of metal selected from the group consisting of Al, Ag and Au.

6. The optical element manufacturing method according to claim 1, wherein a visible spectrum light polarizer is manufactured as the optical element.