Blue cut UV420 Protection
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What is blue light?
Sunlight contains red, orange, yellow, green and blue light rays and many shades of each of these colors, depending on the energy and wavelength of the individual rays (also called electromagnetic radiation). Combined, this spectrum of colored light rays creates what we call "white light" or sunlight.
Generally, scientists say the visible light spectrum comprises electromagnetic radiation with wavelengths ranging from 380 nanometers (nm) on the blue end of the spectrum to about 700 nm on the red end. (By the way, a nanometer is one billionth of a meter - that's 0.000000001 meter!)
Blue Cut Lenses
Blue cut lenses feature a special coating that reflects harmful blue light and restricts it from passing through the lenses of your eyeglasses. Blue light is emitted from computer and mobile screens and long term exposure to this type of light increases the chances of retinal damage. Hence, wearing eyeglasses having blue cut lenses while working on digital devices is a must as it may help in reducing the risk of developing eye related problems.
MR™ Series ~ Trademark of Safe, Clear and Lightweight Lenses ~
Excellent optical materials with high refractive index, high Abbe number, low specific gravity and high impact resistance are provided by polymerizing monomers of MR™ Series.
MR™ Series is especially suitable for ophthalmic lenses and is known as the first thiourethane based high index lens material.
MR™ Series offers a variety of products to provide the best solution for optical lens users.
Note: MR™ Series is a brand name of the raw material for optical lenses.
MR™ Series based lenses are available from most leading lens manufacturers.
R.I.1.74: MR-174™
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Ultra high index lens material for ultra thin lenses.
Strong prescription lens wearers are now free from thick and heavy lenses. |
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Comparison of physical properties of lenses made with MR Series™ VS Other optical materials.
| |
MR Series™ |
Other |
| MR-8™ |
MR-7™ |
MR-10™ |
MR-174™ |
Poly
carbonate |
Acrylic
(R.I. 1.60) |
Middle
Index |
ADC
(CR-39®RAV79®) |
Crown
Glass |
Refractive
Index
(ne) |
1.60 |
1.67 |
1.67 |
1.74 |
1.59 |
1.60 |
1.56 |
1.49/1.50 |
1.532 |
Abbe
Number
(ve) |
41 |
31 |
31 |
32 |
28-30 |
32 |
34-36 |
58 |
59 |
Heat Distortion
Temperature
(ºC) |
118 |
85 |
100 |
78 |
142-148 |
88-89 |
- |
84 |
>450 |
| Tintability |
Good |
Excellent |
Good |
OK |
None |
Good |
Good |
Good |
None |
Impact
Resistance |
Good |
Good |
Good |
OK |
Good |
OK |
OK |
OK |
Poor |
Static Load
Resistance |
Good |
Good |
Good |
OK |
Good |
Poor |
Poor |
Good |
Good |
CR-39 is a trademark of PPG Industries,Inc.RAV7 is a trademark of ACOMON AG.
All properties are representative measurement figures obtained under specified test methods at Mitsui Chemicals,Inc. and are not guaranteed as specifications.
| Premium Lens Applications of the MR™ Series |
Single Vision / Progressive Ophthalmic Lenses
MR™ Series has superb processability to realize desired lens design. |
Wide Color Range Sunglasses
MR™ Series has good color tintability making it suitable for high fashion sunglasses which have special color needs. |
Photochromic Lens System
MR™ Series has good compatibility with photochromic lens systems. |
Polarized Lens
MR™ Series is widely used for both ophthalmic & plano polarized sunglasses. |
Sophisticated Design
MR™ Series has good mechanical strength and stress free properties making it suitable for various unique lens designs such as "Rimless frame" or "High curve lens". |
1.74 Hi-index Single Vision
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Our company mainly focus on single vision 1.49/1.56/1.59/1.6/1.67/1.74 about flat top lenses/ blue cut lenses/photochromic lenses/polarized lenses/polycarboate lenses/ultravex lenses and so on. All of our lenses provide Two year's warranty.
1.74 ASP Features
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| Features |
|
|
| LIGHTEST |
THINNEST |
HI-IMPACT |
• Lighter weight and thinner thickness, up to 50% thinner and 35% lighter than other lenses
• Higher resistance to scratches and impact
• Full protection against UV rays
• Easier to clean due to the water and dirt repellent surface
• Amazing visual comfand aesthetic appeal |
Finished Lens Power Range
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| Finished 1.74 Single Vision ASP |
|
1.74 Blue Cut UV420 ASP FSV |
| Diam |
Sph. |
Cyl.(-) |
Diam |
Sph. |
Cyl.(-) |
| 70mm |
-6.25 ~ -10.00 |
0.00 ~ -4.00 |
70mm |
-6.25 ~ -10.00 |
0.00 ~ -4.00 |
| 75mm |
-1.00 ~ -6.00 |
0.00 ~ -4.00 |
75mm |
-1.00 ~ -6.00 |
0.00 ~ -4.00 |
| 65mm/70mm |
-10.25 ~ -13.00 |
0.00 ~ -2.00 |
65mm/70mm |
-10.25 ~ -13.00 |
0.00 ~ -2.00 |
|
-13.25 ~ -15.00
|
0.00 |
-13.25 ~ -15.00 |
0.00 ~ -4.00 |
About the Coating
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Hard coating make the uncoated lenses are easily subjected and exposed to scratches.
AR coating means hard&multi-coated,protect the lens effectively from reflection,enhance functional and charity of your vision.
Super hydrophobic coating make the lens waterproof,antistatic,anti slip and oil resistance.
Different coating with different performance, we have Uncoated(UC), hard coating(HC), AR(HMC+EMI), Blue Cut and Mirror coating and Tintied different color with sunglasses.
Anti-Reflective
- Eliminate reflections, Increase the transmission!
- Decreases unwanted glare, eliminating ghost image.
- Makes the lenses appear somewhat invisible.
Anti-Smudge
- High contact angle, repel oil and water, make lenses more stain-resistant.
- Super-cleanable.
Anti-Static Electricity/Anti-Radiation
- Help relieving digital eye strain.
- Stay Clean, repels dust articles.
Adopting Mitsui Chemical's NeoContrast technology, the lens contains a blocking glare ingredient to achieve a brighter and high- definition vision through clear colors with contrast.
It can reduce the strong sunlight in the day and the glare from roads during night driving. The front object is clearer to be seen by you when driving which secures your safety, so you can enjoy the wonderful scenery.
About our factory
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WDO (WEIHAI DINGXIN OPTICAL) is one of the most Potential Finished and Semi-Finished Optical Lenses factory located in Weihai City, China.
Our Key & Advantage Products:
Single Vision Lens:CR-39;1.56;1.60;1.67;1,74
Bifocal Lens: CR-39; 1.56;1.60
Progressive Lens: CR-39; 1.56; 1.60
Functional Lens: Blue Cut, Photochromic; Photomagic +UV420cut, Polarized; Polycarbonate
RX Service: Free Form; Special Coating; Special Power Range
Optical Equipment;
Frames
Quality Assurance
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About the Packages
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• Exquisite private customized packaging to meet all your requirements
About the Shipping
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Q1: Is your company a trading company or a factory?
A: We are professional optical lens factory.Our company was established in 1998 with covering 24400 spm and 280 employees.
Q2: What is the time of shipment?
A: It is depended on the order quantity and requirement. Normally, it will take one week for sample lenses , and will take 1 month for bulk lenses.
Q3: How do you control the lens quality?
A: We have 4 Quality Checking step to control quality. Uncoated, Hard Coating, AR coating, every production step we have professional quality checking. Before shipment we have extra quality control.
Q4: Could you provide samples for customers checking the quality before they place the order?
A: Yes, of course. when you make the regular order we will return your samples cost. Detail can contact with our sales.
Q5: What are your payment terms?
A: Our payment term is 30% deposit before production and balance payment before the shipment. You can pay by T/T, L/C, Alipay, Western Union ,Paypal and Etc.
Q6: Can you use customized envelope for me?
A:Yes, we can design your brand envelope Free envelops order MOQ:5000 pairs. If less than 5000 pairs, you also can pay the cost 200$ for one design with 5000pairs envelops. Also we have better quality or special requirement for envelops with charge.
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