All-dielectric small-angle dependent pigment sheet
A small-angle, all-media technology, applied in the field of pigment flakes, can solve the problem of large color shift and achieve the effect of small change
Active Publication Date: 2020-02-11
HUIZHOU FORYOU OPTICAL TECH
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Problems solved by technology
[0005] This application provides an all-dielectric small-angle-dependent pigment flake to solve the problem of large color shift when the all-dielectric pigment flake is viewed from different angles
Method used
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[0015] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative effort shall fall within the scope of protection of this application.
[0016] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) in the embodiment of the present application, the directional indications are only used to explain the position in a certain posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.
[0017] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the...
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Abstract
The invention provides an all-dielectric small-angle dependent pigment sheet. The all-dielectric small-angle dependent pigment sheet comprises a dielectric base layer and at least one dielectric lamination layer period, wherein the dielectric base layer comprises a first sub-dielectric base layer, the at least one dielectric lamination layer period is arranged on a main surface of at least one side of the first sub-dielectric base layer, each dielectric lamination layer period comprises a first sub-dielectric lamination layer and a second sub-dielectric lamination layer, the refractivity of the first sub-dielectric lamination layer is smaller than those of the second sub-dielectric lamination layer and the first sub-dielectric base layer, the first sub-dielectric lamination layer is arranged nearer to the first sub-dielectric base layer relative to the second sub-dielectric lamination layer in the same dielectric lamination layer period, and the optical thicknesses of the dielectric lamination layer and the dielectric lamination layer periods are arranged in a way that the migration of the pigment sheet deviating from a nominal direction of the main surface where the dielectric base layer is located within a range being 0-60 degrees is smaller than 80 nanometers. By the all-dielectric small-angle dependent pigment sheet, the color of the pigment sheet can change slightly with an angle within a certain angle range.
Description
technical field [0001] The present application relates to the technical field of pigment flakes, in particular to an all-medium small-angle-dependent pigment flake. Background technique [0002] The application of structural color has a long history. Materials with high and low refractive indices are alternately arranged to form a periodic photonic crystal structure, so that light of a specific wavelength cannot pass through the photonic band gap of the photonic crystal, thereby producing structural color. [0003] Pigment flakes with angle-dependent color characteristics can be prepared by using the principle of multi-beam interference and the selective absorption of light waves by metals. The pigment flakes formed by overlapping metal-dielectric materials are widely used because of their high brightness and obvious metallic luster. All-dielectric pigment flakes with high and low refractive indices stacked on top of each other are also widely used, and by controlling the ...
Claims
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Login to View More IPC IPC(8): G02B5/28
CPCG02B5/285
Inventor 牛亮亮石斌蔡宏亮向杰
Owner HUIZHOU FORYOU OPTICAL TECH