Blue light resistant dark down sunglasses lenses

A technology of anti-blue light and brown color, which is applied in the field of lenses, can solve the problems of increasing eye macular disease, achieve the effects of protecting eyes, preventing cataract and macular degeneration of the retina, and reducing damage

Active Publication Date: 2011-11-09
XIAMEN HONGTAI OPTICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

That is to choose a pair of functional anti-blue light lenses. Most of the sun lenses on the market can only resist ultraviolet light or infrared light in the sun. chance of macular disease

Method used

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  • Blue light resistant dark down sunglasses lenses

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] An anti-blue light brown sun lens disclosed by the present invention is made by mixing polycarbonate PC and 7308 toner, 8416 toner, 8415B toner and 8410 toner produced by Bayer Company of Germany.

[0015] Among them, 6.13 grams of 7308 toner, 5.56 grams of 8416 toner, 7.97 grams of 8415B toner and 0.94 grams of 8410 toner are added per 100 kilograms of polycarbonate PC.

[0016] The lens molded by the present invention is tested by a professional international standard spectrum tester for transmittance spectrum testing. The brown lens meets the standards of the three countries, namely the American standard ANSI Z80.3, 2001, the European standard EN1836, 2005 (A1, 2007), and the Australian standard (AN / NZS 1067, 2003), and when the average wavelength of the light wave is 380-500 nanometers and the light wave is 470 nanometers, the transmittance is lower than 5%, effectively blocking the entry of blue light.

[0017] The following table lists 10 specific embodiments and ...

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PUM

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Abstract

The invention discloses blue light resistant dark down sunglasses lenses, made by mixing polycarbonate PC, 7308 toner, 8416 toner, 8415B toner and 8410 toner; wherein every 100kg of polycarbonate PC is added with 6.13g of 7308 toner, 5.56g of 8416 toner, 7.97g of 8415B toner and 0.94g of 8410 toner. The sunglasses lenses are in dark brown, can effectively prevent light with the wavelength of 380-500nm from passing through, reduces harm of blue light to eyes, protects the eyes, prevents eye disease such as cataract and is especially applicable to person received cataract surgery, person with macular degradation family history, person in maintenance period after laser surgery, students who are suffering pseudomyopia and want to control myopic degree not to be increased, person who enjoys outdoor activity or works outdoor, person who lives in hot climate and sunny area, person taking medicine with photosensitivity, person who uses computer for a long time and person suffering from dry eye syndrome.

Description

technical field [0001] The invention relates to a lens, in particular to an anti-blue light brown sun lens. Background technique [0002] At present, many places (such as some test instruments, etc.) have requirements for light. Some places do not allow light of a certain band to enter, and some places only allow light of a certain band to enter. Therefore, some people in the industry have specially developed Various light-transmitting materials that can cut off (or filter) a certain wavelength, such as plastic filter materials, specific products include UV cut-off filters (can block ultraviolet rays from passing through), blue light cut-off filters (can block blue light from passing through) ... However, these materials and their products are currently mainly used in research experiments, and the application in eyewear products is still a blank. [0003] Experts pointed out that strong ultraviolet rays can easily cause damage to the eyes. Blue light can accelerate the oxid...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02C7/10
Inventor 陈宇翔
Owner XIAMEN HONGTAI OPTICAL
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