Light polarizing products and method of making same

A polarizing and product technology, applied in the field of polarizing products and its preparation, to achieve the effects of good mechanical integrity, good heat resistance, and high polarization effect

Active Publication Date: 2007-12-05
CORNING INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The microgrooves are preferably...

Method used

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  • Light polarizing products and method of making same
  • Light polarizing products and method of making same

Examples

Experimental program
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Effect test

Embodiment 1

[0130] Embodiment 1 (the present invention):

[0131] Polyurethane-urea plastic lenses sold under the trade name NXT(R) from Intercast Europe SPA were coated with HI-GARD(R) 1080 coating according to the resin manufacturer's recommended guidelines. The final hard coat thickness is 2-3 μm. After the surface is cleaned, a thin layer of chromium is used as an adhesion layer, deposited on top of the hard coat, and then 100nm thick SiO 2 The coating is vacuum deposited.

[0132] The coated substrate is then brushed with an appropriately sized wheel made of polyurethane foam. The wheel is saturated with abrasive slurry to form parallel microgrooves in the surface of the coated lens.

[0133] The abrasive slurry used is a mixture of water and micron sized zirconia particles to provide a gentle abrasive brushing. Wheel speed is 340rpm, pressure is about 40g / cm 2 , applied for about 5 seconds. The microgrooved lenses were then rinsed with deionized water and dried at 50°C for 2 m...

Embodiment 2

[0144] Embodiment 2 (comparative example):

[0145] Repeat the same process as in Example 1, except omit the adhesive layer and SiO 2 layer. Grooves were therefore made directly on the hardcoat HI-GARD(R) 1080.

[0146] Polarization efficiency was 98% after dye deposition and 96% after the entire process. During water treatments such as aluminum chloride treatment or silane treatment, some lenses delaminate, resulting in unacceptable aesthetic defects. None of these lenses survived the boiling water test.

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Abstract

Disclosed are novel light polarizing articles comprising a substrate, a light polarizing layer, an inorganic intermediate layer between the polarizing layer and the substrate, an optional inorganic sub-layer between the substrate and the inorganic intermediate layer, and a protective layer over the light polarizing layer, and method of making the same. Due to the presence of the inorganic intermediate layer and the optional sub-layer, adhesion of the polarizing layer is improved substantially. The light polarizing article has improved chemical, mechanical and thermal resistance. The light polarizing article can be used, for example, as ophthalmic products and in display devices.

Description

technical field [0001] The invention relates to a polarized product and a preparation method thereof. Specifically, the present invention relates to a polarizing eye product, including a polarizing layer, a substrate, and at least one adhesive layer therebetween, and a manufacturing method thereof. The invention is useful in making, for example, polarized eye articles and display products. Background technique [0002] Linear light polarizing filters enable light with an electric field in one plane to transmit at a higher rate than light with an orthogonal electric field. Polarizing filters have been widely used in eye products, display devices, and optical communication devices. Polarized eye lenses are of interest because of their unique ability to selectively remove glare reflected from smooth horizontal surfaces, such as water and ice. [0003] Polarizing articles have been prepared using dichroic materials. Dichroic materials, when properly oriented, are capable of ...

Claims

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Application Information

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IPC IPC(8): B32B3/28B32B3/00B32B3/04B32B17/00B29C65/00G02C1/02
CPCC03C17/36G02B5/3041C03C17/3411C03C17/38G02B5/3033B29D11/0073G02C7/12C03C17/42G02B5/30
Inventor D·亨利M·-M·比尔M·M·迈耶-弗雷德霍姆X·G·拉福斯
Owner CORNING INC
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