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Corrosion resistant wire-grid polarizer and method of fabrication

A wire grid polarizer, corrosion-resistant technology, used in polarizing elements, instruments, optics, etc., can solve problems such as hindering the operation or performance of optical systems, affecting optical properties, and adversely changing other properties of polarizers

Inactive Publication Date: 2005-08-10
MOXTEK INC
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Thus, while sealing the grating may protect the component, it may also adversely alter other properties of the polarizer, thereby affecting the properties of the light and likewise hampering the operation or performance of the optical system

Method used

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  • Corrosion resistant wire-grid polarizer and method of fabrication
  • Corrosion resistant wire-grid polarizer and method of fabrication
  • Corrosion resistant wire-grid polarizer and method of fabrication

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Embodiment Construction

[0012] Hereinafter, it will be described in detail with reference to exemplary embodiments shown in the accompanying drawings. It should be understood, however, that the examples are not intended to limit the scope of the invention. Variations and other modifications of the features of the invention described herein, and other applications of the principles of the invention described herein, by those skilled in the relevant art and given this disclosure, will be considered to be within the scope of the invention.

[0013] As shown in Figures 1 and 2, a polarizing device indicated at 10, such as a wire grid polarizer, is used according to the invention to substantially decouple two orthogonal polarizations of an electromagnetic beam indicated at 12. In one aspect, electromagnetic beam 12 may include visible light. The polarizing device 10 or wire grid polarizer may include an optical element 14 and a nanostructure 16 . As described in detail below, the polarizing device 10 or...

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Abstract

A polarizing device (10), such as a wire-grid polarizer, includes a substantial mono-layer (24) of a corrosion inhibitor without adversely affecting the optical properties of the polarizing device. The polarizing device can include an optical element (14) and a nano-structure (16), such as an array of a plurality of spaced-apart, elongated elements (32) disposed on a substrate (28). The corrosion inhibitor is chemically bonded to surfaces of the elements to form the mono-layer. The mono-layer can have a thickness less than 100 Angstroms. A method of forming the substantial mono-layer can include treating the polarizing device with an amino phosphonate, such as a nitrilotris (methylene) triphosphonic acid.

Description

technical field [0001] The present invention relates to wire grid polarizers for physically decoupling two orthogonal polarizations of visible or near-visible light. In particular, the invention relates to corrosion resistant wire grid polarizers, and methods of treating such wire grid polarizers to render them resistant to reactions. Background technique [0002] Wire grid polarizers have been developed for application in the visible and near-visible spectrum of electromagnetic radiation or light to substantially decouple the two orthogonal polarizations of light. Such wire grid polarizers can be used in optical systems such as image projection systems and image display systems. [0003] However, there are some concerns regarding the durability or long-term integrity of wire grid polarizers. In particular, it is a problem that conductive elements may be susceptible to corrosion or damage, especially in high temperature and humid environments or applications. It should be...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B5/30
CPCG02B5/3058G02B27/28G02B5/30B82Y40/00
Inventor M·莱恩斯R·T·珀金斯
Owner MOXTEK INC
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