WHAT'S News
  • 2017 East Vision Expo In New York 2017-02-20 2017 East Vision Expo In New York 2017 East Vision Expo coming in this March.Yuzhou optics sale team will here waiting for you. Come to our booths LP4272Sales manager:Peter Wang, Caroline Zang, Anna Wang will take some new technology lenses show to you.Like clear lens with photochromic by coating, fast, comfortable and stable.Contact us for for new lenses sample now.info@yuzhouoptics.comWhatsapp:+86-15895320922Atten:Anna Wang
  • 2017 MIDO eyewear show 2017-02-19 2017 MIDO eyewear show Yuzhou Optics will attend MIDO Eyewear Show in this February.From 25~27thBooths Number: HALL 3 T20Our sales manager  Mr. Peter Wang, Caroline Zang, Anna Wang looking forwatd to showing you the new technology of optical lenses.See You at HALL 3 T20Contact information:info@yuzhouoptics.comPhone/Whatsapp:+86-15895320922Atten: Anna Wang
  • We come back to work from China National Day 2016-10-08 We come back to work from China National Day We will celebrate China National Day from Oct.1 to Oct.7. During this time, all the chinese people give best regards to our motherland. Have a long time to adjust working and family time.Even in these days,Yuzhou optics workshop are run for clients orders. We have 3 production line and 5 workshop for non-coated lens, hard coating lens, multi-coated lens, packing ,inspection,moulding workshop. And ...
  • Welcome to our booth in Vision-X Dubai 2016-06-09 Welcome to our booth in Vision-X Dubai From 25.-27. October 2016, Our Team, Yuzhou Optics Sales Manager, Peter Wang, Anna Wang, Caroline Zang will go to Vision-X optistyle Dubai.The Vision-X Dubai is tha largest and most established optics exhibition and conference in Middle East area.We,Yuzhou Optics will launch our newest technology and lenses in Dubai.Blue Light Cut Lens cover index, 1.50,1.56,1.60 and so on.Welcome to our booths, a...

blue block lens

  • TECHNICAL DATA

Blue light is everywhere that come from sunlight and man-made.

Blue light is a color in the visible light spectrum from 380nm to 500nm and it’s one that our eyes are particularly sensitive to because of its short, high energy wavelengths. Blue light is everywhere, sunlight is main source of blue light, but there are also many man-made, indoor’s source of blue light like fluorescent and LED lighting and flat-screen televisions Too much exposure to blue light can damage light-sensitive cells in the retina. This causes changes that resemble those of macular degeneration which can lead to permanent vision loss. Many eye care providers are concerned that the added blue light exposure from computer screens, smartphones and other digital devices might increase a person’s risk of macular degeneration later in life or may contribute to digital eye strain. Exposure to blue light also affect our sleep, Blue light suppresses the body’s secretion of melatonin, a hormone that regulates sleep and wakefulness.

Why we choose blue block lenses?

We are very vulnerable because our eyes have not yet developed natural defense against UV and HEV blue light, especially when people spending amount of time on devices like computer, electronic, notebook and so on. Blue light lenses are designed to filter and/or reflect different levels of blue light that can help to protect our eyes from excess artificial blue light with patented, multi-layer coating design that reduce glare, reflect blue light away from the lens and relieve long-term eye strain caused by excess electronic device use.

The blue block lenses from Yuzhou Optics:

Yuzhou Optics blue block lens will give you premium protection for your eyes. There are two types blue block lens you can choose. The first are lenses that have blue light reflecting AR coatings which are typically clear. The second type are lenses with blue block tints. Clear lenses do not change or alter the colors you see. Tinted lenses filter light and can change visible colors but can also reduce glare more effectively for light sensitive people.

Blue block lens with special monomers in the lens material

Blue Block Lens Tints are rated as the percentage of Total Blue Light filtered, not just HEV Blue light. Blue block tints are designed to not only protect your eyes from HEV Blue Light but also to address glare issues

Blue Coating lens

Blue Block AR Coatings are rated as the percentage of HEV Blue Light filtered/reflected from 415nm through the 455nm range. If a blue block AR lens provides a 20% reduction in blue light, it is this range that is being reducedEspecially attention: different customers have different ideas, you can get customized blue coating lens from Yuzhou Optics:

Is blue light all bad for you? NO!

The light that reaches and enters the human eye is divided into visible light, comparing wavelengths from 380nm to 780nm, and non-visible light which includes light in the ultraviolet range and the infrared range. Blue light is from 400nm to 500nm. Too much exposure to blue light will cause macular degeneration, digital eye strain and sleep problems. But not all blue light is bad, Research has shown that high-energy visible light between 450nm to 500nm is considered good blue light and needed for good health. It boosts alertness, helps memory and cognitive function and elevates mood. It regulates circadian rhythm – the body's natural wake and sleep cycle. Exposure to blue light during daytime hours helps maintain a healthful circadian rhythm

Production Process 

Test Report

1. Drop Ball Testing
2. Abrasion Resistance Test
3. Light Transmittance Test
4. Reflected light test
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