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Color dischronic polarizars and method for prodn. thereof

A technology of dichroic and polarizing mirrors, applied in the field of color

Inactive Publication Date: 2007-01-03
沃尔夫－格诺特·德罗斯特 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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  • Color dischronic polarizars and method for prodn. thereof
  • Color dischronic polarizars and method for prodn. thereof
  • Color dischronic polarizars and method for prodn. thereof

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Embodiment Construction

[0028] figure 1

[0029] The polychromatic dichroic polarizer consists of a sodium-silicate glass substrate 1 containing submicroscopically sized silver particles 3 in a double skin layer 2 . Silver particles are spheroids, and this shape can be described by the ratio of their semi-axes. The average size of the spheroid is several nanometers. During the fabrication process of the silver particles, the main axes are parallel to each other and to the surface of the substrate.

[0030] In each sequential partial layer 4a and 4b, 5a and 5b, 6a and 6b, the axial ratio of the silver grains is adjusted such that they have absorption bands in the blue and green, blue and red, green and red spectral regions . As a result, adjacent strips 4 , 5 and 6 of substrate 1 appear red, green and blue when the substrate is irradiated with linear polarized white light with the polarization direction parallel to the semi-major axis of the particles. The partial layers 4a, 5a and 6a bounded by ...

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Abstract

In order to produce full-color dichroic polarizers, it is necessary to produce absorption bands with several absorption maxima. The absorption bands produced until now always have a simple band form which is determined by the form of the non-spherical particles deposited in the polarization layer. By briefly warming a partial layer of a layer that is provided with not totally relaxed non-spherical silver particles, an adjustment of a given axis ratio occurs only in said partial layer, while absorption bands with several absorption maxima can be produced by means of differently adjusted axis ratios in superimposed partial layers. Full-color polarizers can be produced by combining several such absorption bands.

Description

technical field [0001] This invention relates to colored, mainly polychromatic, dichroic polarizers and methods for their manufacture. The color and polarization effects of this polarizer are achieved by embedding dichroic absorbers-non-spherical particles, mainly metal particles, as carrier materials in the glass. The invention relates to the shape of the particles in the carrier material, the spectral position and shape of the absorption bands, and their method of manufacture. Background technique [0002] The field of use of the invention is polarizers in the visible, ultraviolet and near-infrared spectral range, which preferably have dichroic absorption bands that are laterally different and purposefully adjusted. Such polarizers are suitable for use in the manufacture of displays. [0003] It is well known that unidirectional non-spherical particles within a support material can lead to dichroic absorption bands. Typical examples are silver particles, copper particle...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B5/30
CPCG02B5/3058G02B5/30
Inventor 安德烈斯·贝尔格沃尔夫-格诺特·德罗斯特鲁茨·高迪格S·潘策尔R·巴特尔J·丹哈德特
Owner 沃尔夫－格诺特·德罗斯特