Description
What is blue light?
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 light generally is defined as visible light ranging from 380 to 500 nm. Blue light sometimes is further broken down into blue-violet light (roughly 380 to 450 nm) and blue-turquoise light (roughly 450 to 500 nm).So approximately one-third of all visible light is considered high-energy visible (HEV) or "blue" light.
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.
Our Blue Cut Lenses' Advantages
Our blue cut lenses can effectively prevent blue light radiation.And the lenses are of good quality and are not easily broken.
| CR39 Multifocal lens 1.56 index Progressive Photogrey Blue Cut UV420 Optical lens |
| Index | 1.56 | Progressive lens provides a great solution for people who want to escape the limited correction that most lenses provide.
As their name suggests,progressive lens provides clear vision not just for near and far.
But also for all distances in between without any abrupt changes or visible lines in the lens. |
| Photchromic | Grey |
| Diameater | 75/12MM |
| Abbe | 40.5 |
| Transmission | 86% |
| Coating | HMC/SHMC/BLUE CUT |
| Power range | +3.00/Add1.00~+3.00;-2.00/Add1.00~+3.00 |
Our company mainly focus on single vision 1.49/1.56/1.6/1.67/1.74 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.
Features :
★Extreme clear in doors,85% darkness out outside.
★Darkening to 85% within 30 seconds, fading to clear within 60 seconds.
★Harmful UV rays 100% eliminated.
★Durable using life, consistent colour changing for 2 years.
Progressive Short Corridor _____________________________________________________________________________________________________________________________________________________________ |
Technical Data:
• Fitting Cross:+2.0mm up from center
• Short corridor (14mm to full addition power)
• Distance Circle:+8.0mm up from center
• Near Area Circle:12.0mm down the center
• Minimum fitting height of 15mm
• Low distortion soft, aspheric design
• Individual designs for left and right eyes
Availability :
• Finished Lenses and Semi-Finished(S/F) Lenses
• Base Curves : 1.50, 3.50,5.75, 7.75
• Addition Powers : 1.00 to 3.00 in 0.25D steps
• Finished Power Availability:-2.00 to +3.00,Add +1.00 to +3.00.
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1.56 PHOTOCHROMIC S/F PROGRESSIVE SHORT CORRIDOR LENS
| Diameter | Nominal | True Curve | Radius | Back | Radius | Center | Edge | MRP | Seg | Fitting Cross | Sag at | RX Range |
| Curve | (n=1.56) | Curve | mm | mm | Dec. | Inset | above MRP | 50mm |
| 75mm | 150 | 1.50 | 374.10 | 5.60 | 99.89 | 7.5 | 10.0 | 0 | 2.25 | 2 | 0.83 | -3.25D/-7.50D |
| 75mm | 350 | 3.63 | 154.20 | 6.92 | 80.95 | 6.0 | 10.0 | 0 | 2.25 | 2 | 2.02 | -1.00D/-3.00D |
| 75mm | 575 | 6.08 | 92.10 | 6.92 | 80.95 | 6.5 | 7.0 | 0 | 2.25 | 2 | 3.42 | -0.75D/+2.25D |
| 75mm | 775 | 8.25 | 67.87 | 5.60 | 99.89 | 11.5 | 5.0 | 0 | 2.25 | 2 | 4.73 | +2.50D/+5.50D |
Hard Coating Anti-scratch Coating | Anti-reflective Coating Hard Multi Coated | Crazil Coating Super Hydrophobic Coating |
| Avoid ruining your lenses quickly protect them from getting scratched easily | Reduce glare by eliminating the reflection from the surface of the lens not to be confused with palarized | Make the surface of the lenses super hydrophobic, smudge resistance, anti static, anti scratch, reflection and oil |
• INDOOR AND OUTDOOR SCENE CUTImported monomer makes coating photochromic lens highly sensitive. It is colorless transparent indoor and changes according to UV strength outdoor. The stronger UV color is, the darker lens color is. Light transmittance will increase quickly when coming back indoorside from outdoor activities. Free scene shift provides customers with comfortable experience.The Lens Details ______________________________________________________________________________________________________________________________________________________________
Photochromic lenses can provide vision for both indoors when clear and providing sunglasses protection outside• UV Protection Photochromic lenses provide full protection against the harmful UV rays of the sun• Eye Health Photochromic lenses can reduce your exposure to the suns harmful UV rays lower the risk of cataracts or other eye relateds problemsOur Factory
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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Packing and shipping
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.
Complaint
