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Jiangsu Aogang Optical Glasses Co., Ltd.

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Bifocal Semi Finished Lens Blanks , Flat Top CR39 1.499 Ophthalmic Blanks

Bifocal Semi Finished Lens Blanks , Flat Top CR39 1.499 Ophthalmic Blanks

    • Bifocal Semi Finished Lens Blanks , Flat Top CR39 1.499 Ophthalmic Blanks
    • Bifocal Semi Finished Lens Blanks , Flat Top CR39 1.499 Ophthalmic Blanks
  • Bifocal Semi Finished Lens Blanks , Flat Top CR39 1.499 Ophthalmic Blanks

    Product Details:

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

    Payment & Shipping Terms:

    Minimum Order Quantity: 100 pairs
    Price: negotiation
    Packaging Details: 1) Standard white envelope 2) color envelop with customer 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
    Index: 1.499 Material: CR39
    Diameter: 70/28mm Abbe Value: 56
    Specific Gravity: 1.33 Transmission: > 97%
    Coating: Non-coated Power Range: Base: 2/4/6/8 ADD: +1.00~+3.50

    CR39 1.499 Uncoated Flat Top Bifocal Lenses In Semi Finished Lens Blanks
     
    I. Technical Data:

     

    1.499 S/F FLAT TOP BIFOCAL BLANKS

    MARTERIAL REFRACTIVE INDEX=1.499                                                                     TOOLING INDEX=1.530
    Diameter(mm) Nominal
    Curve
    Front
    Radius
    T.C Back
    Radius
    BACK
    T.C
    CT/ET Frong sag
    Ring 50mm
    RX Range
    Recommended
    ɸ70 200B 234.27 2.26 94.93 5.58 10.0/14.0 1.34 -5.25Dto-8.00D
    ɸ70 400B 127.62 4.15 94.93 5.58 10.0/12.0 2.47 +2.00Dto-5.00
    ɸ70 600B 87.18 6.08 161.04 3.29 9.0/6.0 3.66 0.00Dto+4.00D
    ɸ70 800B 66.49 7.97 161.04 3.29 13.0/6.0 4.88 -4.25Dto+6.00D

     

    Bifocal Semi Finished Lens Blanks , Flat Top CR39 1.499 Ophthalmic Blanks

     


     

     

     

     

     

     

     

     

    II. The classic bifocal product for presbyopes:

     

    Bifocals have the unique ability to give two lens powers so that you can see both near and far. The bottom portion of the lens is used for seeing up close like with reading or computer work. The top portion is for distance but some people do not need it so sometimes that portion has no prescription in it at all. It will vary with each person.

     

    • As their name suggests, bifocal eyeglass lenses have two lens powers — one for distance and one for near.

     

    • 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.
    Bifocal Semi Finished Lens Blanks , Flat Top CR39 1.499 Ophthalmic Blanks

     

    Bifocal Semi Finished Lens Blanks , Flat Top CR39 1.499 Ophthalmic Blanks
    • When people inch closer to forty, they may find that their eyes are not adjusting to distances as they used to, the lens of the eyes begin to lose flexibility. It becomes difficult to focus on close objects. This condition is called presbyopia. It can be managed to a large extent with the use of bifocals.

     

     III. Benefits of flat top bifocal lenses for wearer:

    1. Two different segment sizes to meet individual requirements
    1. Reduced reflections due to curved segment top
    1. Segment fusing or molding on front surface and inner toric surface design ensure excellent optical quality and cosmetically attractive lenses
    1. Wide selection available: various material, photochromic bifocal lenses and sunglass lenses
    1. Aogang bifocals are made from one of the highest quality materials, in Uncoated, Hard-Coated and Hard-Multi-Coated varieties.

    IV. Factory Pictures:

     

    Bifocal Semi Finished Lens Blanks , Flat Top CR39 1.499 Ophthalmic Blanks

    V. 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

     

    VI. Our service:

     

    1. Our Customer service will begin to track the product processing every day until you receive the goods and verify the product quality when you finish the payment.

     

    2. Online via SKYPE,Whatsapp;Also through mail, voice phone, message could contact us at any time!

     

    3. Follow up the case, record the entire process. Solution will be provide with 24 hours.
        Meanwhile,the problem complaint will be reported to QC department.
        QC will find defect from which department ,who is in charge to identify responsibility.

     

    4. Collect and record all the voice from each customer respond , suggestion, requirement.

     

    5. We own the best after-sale service,if any problems happen,our team will do our best to solve for customers.

    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
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