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Top Quality 1.49 Bifocal Flat Top Hmc Optical Lenses Spectacle Lens/Resin Lens Featured Image
  • Top Quality 1.49 Bifocal Flat Top Hmc Optical Lenses Spectacle Lens/Resin Lens
  • Top Quality 1.49 Bifocal Flat Top Hmc Optical Lenses Spectacle Lens/Resin Lens
  • Top Quality 1.49 Bifocal Flat Top Hmc Optical Lenses Spectacle Lens/Resin Lens
  • Top Quality 1.49 Bifocal Flat Top Hmc Optical Lenses Spectacle Lens/Resin Lens
  • Top Quality 1.49 Bifocal Flat Top Hmc Optical Lenses Spectacle Lens/Resin Lens
  • Top Quality 1.49 Bifocal Flat Top Hmc Optical Lenses Spectacle Lens/Resin Lens
  • Top Quality 1.49 Bifocal Flat Top Hmc Optical Lenses Spectacle Lens/Resin Lens

Top Quality 1.49 Bifocal Flat Top Hmc Optical Lenses Spectacle Lens/Resin 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

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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

exhibition

Our Products Testing

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Quality Checking Procedure

1

FAQ

faqSticking to your principle of “Super Good quality, Satisfactory service” ,We are striving to get a fantastic business enterprise partner of you for Top Quality 1.49 Bifocal Flat Top Hmc Optical Lenses Spectacle Lens/Resin Lens, We’ve been devoted to offer professional purification technology and methods in your case!
Top Quality China Ray Ban Blue Light Blocking Glasses and Protect Eyes From Blue Light, Taking the core concept of “to be the Responsible”. We will redound up on society for high quality solutions and good service. We are going to initiative to participate in international competition to be a first- class manufacturer of this product in the world.

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