Basic Info.
Function
for Presbyopic, for Astigmia, UV Protection, for Myopia
Design
Spherical & Aspherical
Product Description
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 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 are designed to absorb anywhere from 10% to over 90% of blue light. Blue light is visible light with high energy in the range of 380 nanometers to 495 nanometers. This type of lens is designed to allow some blue light to pass through to prevent color distortion. The amount of color distortion may increase with lenses that are designed to block more than 50% or 60% of blue light from passing through to your eyes.
Anti-blue light glasses can immediately reduce symptoms of digital eye strain, especially when working at night. Over time, wearing blue blockers while working on digital devices may help to normalize your circadian rhythm and risk of macular degeneration.
Our Blue Cut Lenses' AdvantagesOur blue cut lenses can effectively prevent blue light radiation.And the lenses are of good quality and are not easily broken.Choose lenses with an anti-reflective coating if you want to see more clearly and reduce eye strain. If blocking more of the blue light that emanates from backlit digital devices is your top priority, anti-blue light glasses are the best choice.What is an Aspheric Lens?Traditional lenses have a bulgy, curved shape. Imagine the spherical surface of a ball. An aspheric lens is designed with less curvature than its traditional counterpart. Think: flatter and thinner. In both farsighted and nearsighted prescriptions, aspheric lenses provide a slimmer profile and minimize eye distortion without compromising optical quality. An aspheric lens or asphere (often labeled ASPH on eye pieces) is a lens whose surface profiles are not portions of a sphere or cylinder.
The asphere's more complex surface profile can reduce or eliminate spherical aberration and also reduce other optical aberrations such as astigmatism, compared to a simple lens. A single aspheric lens can often replace a much more complex multi-lens system.
Aspheric eyeglass lenses allow for crisper vision than standard "best form" lenses, mostly when looking in other directions than the lens optical center. They may give a thinner lens, and also distort the viewer's eyes less as seen by other people, producing better aesthetic appearanceAbout Coating: Hard coating:
Make the uncoated lenses are easily subjicted and exposed to scratches
AR coating/Hard multi coating:
Protect the lens effectively from reflection, enhance functional and charity of your vision.
Super hydrophobic coating:
Make the lenswaterproof, antistatic, anti slip and oil resistance. Product Specifications:
| Specifications | Index | 1.56 |
| Design | SPHERICAL |
| Material | NK-55 |
| Vision Effect | SINGLE VISION |
| Photochromic | NO |
| Abbe Value | 38 |
| Specific Gravity | 1.28 |
| Transmittance | 98-99% |
| Abrasion Resistance | 6-8H |
| Multi color | BLUE |
| Diameter | 65/70MM |
| Coating | HMC |
| Payment& Shipping Terms | Port | FOB Shanghai |
| MOQ | 500 Pairs |
| Supply Ability | 10000 Pairs per Day |
| Payment | T/T 30% before production, balance before shipment. L/C is also acceptable. |
| Packing | Envelops ( for choice):1) standard white envelops |
| 2) your design with your logo, need extra charge |
| Main Features | Passed the impact resistance test of FDA Drop ball test |
| 1 year quality guarantee. |
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 Why choose us? -A Grade optical lens
-20+ years experience -Various logo customization-One of the top 10 manufacturers in China Optical Lens industry -Best service and the most cost-effective quality product
Packaging and Shipping:We can customize packaging bags with exclusive LOGO according to the requirements of each customer, and choose suitable transportation methods for customers.
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.
Address:
No. 51, Huaxia Road, Eco& Tech Deve Zone, Weihai, Shandong, China
Business Type:
Manufacturer/Factory
Business Range:
Chemicals, Construction & Decoration, Electrical & Electronics, Health & Medicine, Industrial Equipment & Components, Manufacturing & Processing Machinery, Security & Protection, Service, Sporting Goods & Recreation, Tools & Hardware
Management System Certification:
ISO 9001, ISO 14000, ISO 20000, GMP
Company Introduction:
Weihai Dingxin Optical Co., Ltd
Established Date: Mar. 1998
Location: No. 51, Huaxia Road, Eco & Tech Deve Zone, Weihai City, China.
Empolyees: 280 Persons
Size: 32000, Building: 1, 8406
Our key and advantages products:
Single Vision Lens: CR-39; 1.56; 1.60; 1.67
Bifocal Lens: CR-39; 1.56
Progressive Lens: CR-39; 1.56; 1.60
Functional Lens: Photochromic; Polarized; Polycarbonate; Blue Cut Lens
RX Service: Free Form; Special Coating; Special Power Range
Strategic Partners:
Monomer: PPG Industries; Great Lakes; Mitsui; Tokuyama Corporation;
Equipment: Lebold; Satisloh; SCL; Schneider; Optotech
Scientific Research: Sun Yat-sen University; Southwest; University (SWU)
We can always make sure high lens quality and in-time delivery from professional staff, advanced equipment and great material. Having registered with CE, FDA, 1S09001, our products are in compliance with most global quality standards.
We believe that we will easily earn your trust with our high quality, excellent pricing and on-time delivery. We sincerely hope that you would give us the opportunity to demonstrate our quality service to you.
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