Health lens for preventing blue light harm and its mfg. method

An anti-blue light, spectacle lens technology, applied in glasses/goggles, optics, optical components, etc., can solve the problems of high light quantum energy level, poor visual and color discrimination performance, limited color discrimination ability, etc., to achieve soft color discrimination. , the effect of clear vision

Inactive Publication Date: 2005-01-12
众生(杭州)光学有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] Medical research also shows that in the visible light region, human eyes are not sensitive to violet light and part of blue light with a wavelength of 380nm to 450nm, and are not sensitive to visual objects and color discrimination, that is, the eyes can distinguish the color of violet light and part of blue light in this band. The ability is limited, but the photon energy level of this wave band is relatively high (because of the short wavelength), and the damage to the retina of the eye is relatively large; Strong, so people will feel a strong tingling sensation in the eyes; they also have this feeling under strong light, so people have to squint their eyes and forcefully narrow the pupils in this environment to reduce the impact of t...

Method used

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  • Health lens for preventing blue light harm and its mfg. method
  • Health lens for preventing blue light harm and its mfg. method
  • Health lens for preventing blue light harm and its mfg. method

Examples

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specific Embodiment 1

[0051] Such as Figure 7 As shown, the anti-blue light damage health care spectacle lens in this specific embodiment is composed of two parts: a substrate 1 and an evaporated film layer. Substrate 1 is a refractive lens prepared from polycarbonate containing a short-wave visible light absorber, or may be made of polymethyl methacrylate or allyl diglycol carbonate and diisopropyl alcohol containing a short-wave visible light absorber. Refractive lenses prepared from any one of the peroxycarbonate copolymers. The vapor-deposited film layer is composed of three layers of alternately stacked layers, from the inside to the outside are SiO 2 Film layer 2, ZrO film layer 3 and SiO 2 The film layer 4 has a thickness of 138nm, 275nm and 138nm respectively.

[0052] SiO in this specific embodiment 2 Coating 2 and SiO 2 The film layer 4 is a low refractive index film layer, and the ZrO film layer 3 is a high refractive index film layer.

[0053] The short-wave visible light absorbe...

specific Embodiment 2

[0055] The anti-blue light damage health care spectacle lens in this specific embodiment consists of two parts: a substrate and an evaporated film layer. The substrate is a refractive lens made of polymethyl methacrylate containing a short-wave visible light absorber, or it can be made of polycarbonate or allyl diglycol carbonate and diisopropyl peroxide containing a short-wave visible light absorber. Refractive lenses prepared from any one of the oxidized carbonate copolymers. The vapor-deposited film layer is composed of five layers of film layers stacked alternately, from the inside to the outside are respectively TiO 2 film, SiO 2 Film layer, TiO 2 film, SiO 2 film and TiO 2 The film layer has a thickness of 197nm per layer.

[0056] The short-wave visible light absorber in this specific example is formed by mixing disperse yellow and disperse blue. The short-wave visible light absorber in this specific embodiment can also be disperse yellow, or a mixture of disperse...

specific Embodiment 3

[0057] The anti-blue light damage health care spectacle lens in this specific embodiment consists of two parts: a substrate and an evaporated film layer. The substrate is a refractive lens made of allyl diglycol carbonate and diisopropyl peroxycarbonate copolymer containing short-wave visible light absorbers, or it can be made of polycarbonate or polycarbonate containing short-wave visible light absorbers. Refractive lenses prepared from any one of methyl methacrylate. The vapor-deposited film layer is composed of seven layers alternately stacked, from the inside to the outside are CoO film, SiO 2 film, CoO film, SiO 2 film, CoO film, SiO 2 The film layer and the CoO film layer, the thickness of the inner 4 film layers is 100nm, and the thickness of the outermost 3 film layers is 120nm.

[0058] The short-wave visible light absorber in this specific example is formed by mixing disperse yellow, disperse blue and disperse black. The short-wave visible light absorber in this ...

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Abstract

The spectacle lens is composed of basal piece and films coated by vaporization. The basal piece is made from organic high polymer containing absorbent for visible light in shortwave. Films coated by vaporization are prepared at least one film in low refractive index and at least one film in high refractive index alternate superimposed. The method includes cleaning, impregnating, coating by vaporization and solidifying steps etc. the invented spectacle lens filters out ultraviolet radiation, most of visual purple and part of blue light (wavelengths in 380-450nm). Thus, people can see objects sharply in weak light or stronger light environment.

Description

technical field [0001] The invention relates to glasses and a manufacturing method thereof. More specifically, the present invention relates to a kind of anti-blue light damage health care spectacle lens and its manufacturing method. Background technique [0002] In order to accurately describe the content of the present invention, the following terms are explained or defined first. [0003] Ultraviolet light: refers to light with a wavelength of 200-380nm. It is divided into far ultraviolet (200~315nm) and near ultraviolet (315~380nm). [0004] Visible light, short-wave visible light and long-wave visible light: the wavelength range of visible light is 380-780nm. Among them, the wavelength range of purple light is 380-430nm, the wavelength of blue light is 430-470nm, and the peak of pure blue light is at 470nm. The wavelength of violet light is the shortest wave in the visible light region, and its frequency is the highest, followed by blue light, so the light with a wa...

Claims

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Application Information

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IPC IPC(8): G02B1/14G02C7/10
Inventor 王元福周青山
Owner 众生(杭州)光学有限公司
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