Tel:
China Prescription Eyeglass Lenses manufacturer
Jiangsu Aogang Optical Glasses Co., Ltd.

Bring the clear world back to you

Home ProductsRound Top Bifocal Lens

Clear CR39 1.499 Round Top Eyeglasses Lenses , Uncoated Optical New Prescription Lenses

Clear CR39 1.499 Round Top Eyeglasses Lenses , Uncoated Optical New Prescription Lenses

    • Clear CR39 1.499 Round Top Eyeglasses Lenses , Uncoated Optical New Prescription Lenses
    • Clear CR39 1.499 Round Top Eyeglasses Lenses , Uncoated Optical New Prescription Lenses
    • Clear CR39 1.499 Round Top Eyeglasses Lenses , Uncoated Optical New Prescription Lenses
  • Clear CR39 1.499 Round Top Eyeglasses Lenses , Uncoated Optical New Prescription Lenses

    Product Details:

    Place of Origin: China
    Brand Name: Aogang Optics
    Certification: CE/FDA/ISO9001
    Model Number: Round Top Bifocal Lens

    Payment & Shipping Terms:

    Minimum Order Quantity: 500 pairs
    Price: negotiation
    Packaging Details: 1) Standard white envelope 2) color envelop with customer's design
    Delivery Time: 10~30 days, depend on your quantity
    Payment Terms: T/T, Western Union, L/C, D/A, D/P, MoneyGram,Paypal
    Supply Ability: 40,000 pieces per day
    Contact Now
    Detailed Product Description
    Refractive Index: 1.499 Diameter: 70mm
    Round Top Segment: 28 Abbe Value: 58
    Specific Gravity: 1.32 Transmission: > 96%
    Coating: Uncoated Guarantee Years: 3~5 Years

    Clear CR39 1.499 Round-Top Uncoated Prescription Eyeglass Lenses For Optical Usage
     
    I. Specifications:

     

    Production 1.499 RT-28 UC LENS
    Monomer CR39
    Diameter 70mm
    Abbe Value 57
    Specific Gravity 1.32
    Transmission >97%
    Round top segment 28
    Guarantee years 3~5 years
    Power range SPH: 0.00~+3.00, 0.00~-3.00,ADD: +1.00~+3.50

     
    II. Round Top Bifocal Lens:

     

    • What Are Bifocal Lenses?

     

    Bifocals are two prescriptions combined into a single lens.


    Bifocals were originated by Benjamin Franklin in the 18th century when he cut the halves of two spectacle lenses and fitted them into one frame.


    Bifocals are needed because the distance glasses do not suffice to focus sufficiently for near. As age increases, (in India 38-40 years is the presbyopic age) reading glasses are required to read at a comfortable distance. Rather than taking out the distance glasses and putting on near glasses each time, a person who wishes to work at the near point could use the lower segment comfortably.

     

    There are various types of bifocals available, from the round-top bifocal, flat-top bifocal to the executive bifocal.

     

    • RT-28 Bifocal Lenses

     

    The lower half of a bifocal lens contains the near segment for reading and other close-up tasks. The rest of the lens is usually a distance correction, but sometimes has no correction at all in it, if you have good distance vision.

     

    One popular fused bifocal is the round seg bifocal. Round-top bifocals are further described by the width of the near segment, measured in millimeters (mm). The most popular RT bifocal is the RT-28, a round-top bifocal with a near seg that is 28 mm wide.

     

    An advantage of round seg bifocals is that the line separating the distance and near zones of the lens tends to be less noticeable than the upper line of a D-seg bifocal.

    Clear CR39 1.499 Round Top Eyeglasses Lenses , Uncoated Optical New Prescription Lenses


    III. Technical Data:

     

    Clear CR39 1.499 Round Top Eyeglasses Lenses , Uncoated Optical New Prescription Lenses

     

    IV. Packing&Shipping:
     

    Envelop
    Choice 1 Choice 2
    White envelop

    color envelop with customer design

    weight: 157g   size: 9*9*9cm

    Outer box

    standard export paper carton 38cm*48cm*35cm(0.064 CBMS)

    Finished lens Semi-finished lens

    about 500 pairsper carton, 21kgs

    about 100 pairs per carton, 15kgs

    Lead time
    Depend on the quantity
    Carrier
    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

     

    V. Why choose us:

    Clear CR39 1.499 Round Top Eyeglasses Lenses , Uncoated Optical New Prescription Lenses

    Q. Are you trading company or factory?

    A. AOGANG OPTICAL is one of the largest manufacturers of optical products in China which has a full stock lens collection from 1.49 to 1.74, Single Vision, Bifocal, Progressive, photochromic, bluecut, sunlens, and also polycarbonate.

     

    Q. Could you provide free samples for customers checking the quality before they place the order?

    A. Yes, of course. For those customers who are really interested in our products, if the quantity is reasonable, we would be very glad to provide our samples after get the detailed instructions from the customer.

     

    Q. What is your Min Order quantity?

    A. Actually, we dont have Min Order quantity requirement. But if the quantity order is too small, we have to charge extra delivery fee and custom fee.

    Contact Details
    Jiangsu Aogang Optical Glasses Co., Ltd.

    Contact Person: Irene Wang

    Tel: +8615896369076

    Send your inquiry directly to us (0 / 3000)

    Jiangsu Aogang Optical Glasses Co., Ltd.
    East of Nongangxiao, Situ Town, Danyang City, Jiangsu Province, China
    Tel:86-511-86550315-9:00~17:00
    China Good Quality Prescription Eyeglass Lenses Supplier. Copyright © 2018 prescription-eyeglasslenses.com. All Rights Reserved.