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 maculopathy, etc., and achieve the effects of protecting eyes, reducing damage, preventing cataracts and macular area lesions

CN101813832AActive Publication Date: 2010-08-25XIAMEN HONGTAI OPTICAL

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Patent Information

Authority / Receiving Office: CN · China
Current Assignee / Owner: XIAMEN HONGTAI OPTICAL
Publication Date: 2010-08-25

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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.

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Description

technical field The invention relates to a lens, in particular to an anti-blue light brown sun lens. Background technique 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. Experts pointed out that strong ultraviolet rays can easily cause damage to the eyes. Blue light can accelerate the oxidation of cells in the ma...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine

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