Top Lens Material News: Latest Trends & Innovations
Glass Lens
Resin sheet
The most representative material is CR-39, which is made of a hard and transparent material with a refractive index of 1.499 and a transmittance of 92%. From its material characteristics, it has good thermal stability, remains unchanged below 150 degrees Celsius, has good water and corrosion resistance (except strong acids), is not soluble in common organic solvents, is lightweight with a density of 1.32, which is half that of glass, has good impact resistance, is not easily broken, has strong safety (in accordance with the FDA standard), is comfortable to wear, and is easy to process. It is widely used (including in semi-frame and no-frame glasses). Its ultraviolet absorption ability is higher than that of glass lenses. However, due to its material limitations, resin lenses also have drawbacks: the surface of the lens is easily wiped and the refractive index of the lens is low, which makes it 1.2-1.3 times thicker than glass lenses.
PC (Polycarbonate Lens Sheet):
Ordinary resin lenses are thermosetting materials, which are liquid in raw form and form solid lenses after heating. PC lenses, also known as "space lenses" and "universe lenses", have the chemical name of polycarbonate, which is a thermoplastic material. That is, the raw material is in solid form, shaped into lens by heating, so the finished lens will also be deformed under excessive heat, which is not suitable for high moisture environment. PC lenses have strong toughness, can not shatter (2 cm can be used for bullet-proof glass), and are hence also known as safety lenses. The specific density of PC lenses is only 2 grams per cubic centimeter, which is the lightest material used for lenses. However, processing is more difficult, and the surface of the lens is very easy to scrape, and has poor thermal stability, becoming soft at 100 degrees Celsius.
Nylon Lens
Polarizing film (Polaroid film)
The function of NDOM is to only accept light from one direction and block light from other directions. It uses the principle of using blinds without watermarks in high-definition to filter out stray light, making our viewing clearer. Polarizing lens principle: In order to filter out the dazzling light from the sun in equal directions on water, land, or snow, a special vertical coating is added to the lens, which is called a polarizing lens. It can eliminate glare and is the preferred choice for drivers. It protects against UV rays and various harmful light in the sun to prevent cataracts, increases contrast color, and provides a clearer and more natural visual experience, giving you a cool feeling. Mirror surface superhard treatment increases the wear resistance and hardness of the polarizer. Polarized sunglasses lenses can absorb 99% of ultraviolet rays and have anti fatigue and anti radiation functions. At the same time, you can also see the hidden graphics in the video, which have good toughness, impact resistance, and can protect the eyes from harm.
The Resurgence of Y2K Style: Sourcing the Hottest Shield & Sporty Sunglasses
Create Your Perfect Look with HECHANG Optical's Custom Sunglasses: Tailored for Style and Comfort
UV400 Protection and Filter Categories Of Sunglasses: A Complete Guide to Protecting Your Eyes and Enhancing Your Vision
5 Key Questions to Ask Before Choosing a Sunglasses OEM/ODM Supplier
Why do many brands like to use sunglasses as promotional items?
What Are Glasses Made Of ?
Customization
What is your return policy for custom glasses?
We want you to be completely satisfied with your custom glasses. If for any reason you're not happy with your purchase, you can return them within 30 days for a full refund or exchange. Please note that certain restrictions may apply, so be sure to review our return policy for details.
Is there a minimum order quantity requirement for the customized service?
According to your specific needs and product types, the customized service may have a minimum order requirement. For more details, please consult our sales team.
Do you offer warranty coverage on custom eyewear?
Yes, all of our custom eyewear comes with a limited warranty against manufacturing defects. If you experience any issues with your glasses due to a defect in materials or workmanship, please contact us, and we'll be happy to assist you with a replacement or repair.
How can I contact customer support if I have additional questions?
If you have any additional questions or need further assistance, our friendly customer support team is here to help. You can reach us via phone, email, or live chat during our business hours, and we'll do our best to address your inquiries promptly and efficiently.
After-sales service
Is there a warranty on your custom eyewear?
Yes, we offer a one-year warranty on all custom eyewear against manufacturing defects. This warranty covers issues such as frame breakage, lens defects, and coating problems under normal use conditions.
Wholesale Fashion Fishing Sunglasses with Detachable Temples HD005
Wholesale Custom Ski Goggles KF-004
Elevate your skiing experience with our premium Custom Ski Goggles, designed for performance, comfort, and style. These high-quality goggles are perfect for ski shops, resorts, and online retailers looking to offer personalized gear to their customers. Crafted with durable, anti-scratch lenses and a wide field of vision, our goggles ensure clear, fog-free views, no matter the conditions on the slopes.
Customizable Fashion Optical Eyeglass Frame C1462
Customizable Full-Frame Silver Sports Sunglasses S411
Submit Your Request Now!
Before diving into our services, please take a moment to fill out the corresponding form, detailing the type of eyewear you wish to import from China. Whether it's sunglasses, optical frames, reading glasses, or children’s glasses, we are committed to providing you with tailored solutions that meet your needs. Let us know your preferred materials, whether you require matching glasses case packaging, or any other specific requirements you may have.
Rest assured that your privacy is important to us, and all information provided will be handled with the utmost confidentiality.
SINCE 1976.
Specializing in OEM eyewear for world-class brands. Our business market has gradually expanded to cover Europe, the United States, Japan, Australia, India, Russia and other countries. More about ↗
We’re here
