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Bottom price Cr39 1.499 Flat Top Bifocal Hmc 70/28mm Eyeglasses Optical Lens Featured Image
  • Bottom price Cr39 1.499 Flat Top Bifocal Hmc 70/28mm Eyeglasses Optical Lens
  • Bottom price Cr39 1.499 Flat Top Bifocal Hmc 70/28mm Eyeglasses Optical Lens
  • Bottom price Cr39 1.499 Flat Top Bifocal Hmc 70/28mm Eyeglasses Optical Lens
  • Bottom price Cr39 1.499 Flat Top Bifocal Hmc 70/28mm Eyeglasses Optical Lens
  • Bottom price Cr39 1.499 Flat Top Bifocal Hmc 70/28mm Eyeglasses Optical Lens
  • Bottom price Cr39 1.499 Flat Top Bifocal Hmc 70/28mm Eyeglasses Optical Lens
  • Bottom price Cr39 1.499 Flat Top Bifocal Hmc 70/28mm Eyeglasses Optical Lens

Bottom price Cr39 1.499 Flat Top Bifocal Hmc 70/28mm Eyeglasses Optical Lens

Short Description:

What Are Bifocal Lenses & How Do They Work?

There are many different variations of lenses available today, many of them fulfilling the same purpose or even multiple purposes. In this month’s blog post we will discuss bifocal lenses, how they function, and what the benefits of them are for various vision impairments.

Bifocal eyeglass lenses contain two lens powers to help you see objects at all distances after you lose the ability to naturally change the focus of your eyes due to age, also known as presbyopia. Due to this specific function, bifocal lenses are most commonly prescribed to people over the age of 40 to help compensate for the natural degradation of vision due to the aging process.

Regardless of the reason you need a prescription for near-vision correction, bifocals all work in the same way. A small portion in the lower part of the lens contains the power required to correct your near vision. The rest of the lens usually is for your distance vision. The lens segment devoted to near-vision correction can be one of several shapes:

• A half-moon — also called a flat-top, straight-top or D segment
• A round segment
• A narrow rectangular area, known as a ribbon segment
• The full bottom half of a bifocal lens called the Franklin, Executive or E style

 

Product Detail

Product Tags

With trustworthy excellent method, very good standing and excellent client provider, the series of items produced by our firm are exported to many countries and regions for Bottom price Cr39 1.499 Flat Top Bifocal Hmc 70/28mm Eyeglasses Optical Lens, We guaranteed good quality, if consumers were not satisfied with the products’ good quality, you can return inside of 7days with their original states.
With trustworthy excellent method, very good standing and excellent client provider, the series of items produced by our firm are exported to many countries and regions for China Blue Light Lenses and Near to Far Progressive Lens price, Welcome to visit our company and factory, there are various items displayed in our showroom that will meet your expectation, meanwhile, if you are convenient to visit our website, our sales staff will try their efforts to supply you the best service

Products Description

1.49 Bifocal Optical Lens
Index Diameter Round top segmen
1.49 70 mm 28
Abbe value Specific Gravity Transmission
58 1.32 > 97%
Guarantee Power range
5-year SPH: 0.00~-3.00 0.00~+3.00 ADD: +1.00~+3.50

 

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Shipping & Package

发货图_副本

Choice 1
Envelope Carton size
White Envelope Stand Export Carton 38cm*48cm*35cm
Choice 2
Your design with your logo
Type Lenses Pair Weight
Finished lens about 500 pairs 21KGS
Semi-finished lens about 100 pairs 15KGS
Lead time Depend on the quantity
Depend on the quantity We can choose for you or offer us your cooperative company
All the numbers provided above are estimated number,the actual numbers need to be measured according to the order you make

Production Flow Chart

  • 1- Mold preparing
  • 2-Injection
  • 3-Solidifying
  • 4-Cleaning
  • 5-First inspecting
  • 6-Hard coating
  • 7-second inspecting
  • 8-AR Coting
  • 9-SHMC coating
  • 10- Third inspecting
  • 11-Auto packing
  • 12- warehouse
  • 13-fourth inspecting
  • 14-RX service
  • 15- shipping
  • 16-service office

About Us

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Certificate

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Exhibition

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Our Products Testing

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Quality Checking Procedure

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FAQ

faqWith trustworthy excellent method, very good standing and excellent client provider, the series of items produced by our firm are exported to many countries and regions for Bottom price Cr39 1.499 Flat Top Bifocal Hmc 70/28mm Eyeglasses Optical Lens, We guaranteed good quality, if consumers were not satisfied with the products’ good quality, you can return inside of 7days with their original states.
Bottom price China Blue Light Lenses and Near to Far Progressive Lens price, Welcome to visit our company and factory, there are various items displayed in our showroom that will meet your expectation, meanwhile, if you are convenient to visit our website, our sales staff will try their efforts to supply you the best service

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