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Semi Finished 1.56 Flat Top UV420 Anti Blue Ray Hard Multi Coated Optical Lens Blanks

Categories Blue Light Blocking Lenses
Brand Name: Aogang Optics
Model Number: Blue Cut Lens
Certification: CE/FDA/ISO9001
Place of Origin: China
MOQ: 500 pairs
Price: negotiation
Payment Terms: L/C, D/A, D/P, T/T, Western Union, MoneyGram, Paypal
Supply Ability: 10~30 days, depend on the order quantity
Delivery Time: 40,000 pieces per day
Packaging Details: 1) Standard white envelope 2) Color envelop with customer design
Index: 1.56
Diameter: 70 MM
Flat top segment: 28
Abbe Value: 58
Specific Gravity: 1.32
Transmission: > 97%
Power Range: ADD: +100~+300
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    • Product Details
    • Company Profile

    Semi Finished 1.56 Flat Top UV420 Anti Blue Ray Hard Multi Coated Optical Lens Blanks

    Contact Way

    Peggy Lu: +8615052975513 (WhatsApp)


    Mid Index 1.56 Hard Multi Coated Flat Top Semi Finished Lens Blanks For Anti Blue Light


    I. Technical Data

    1.56 Semi Finished Flat Top Bifocal Lens

    Material: 1.56 Index NK55 Resin(Ne=1.549, Abbe=38, Specific Gravity=1.28)

    Segment Placement: 5mm down -5mm in

    Add Power: +1.00 to +3.50 in 0.25D steps

    Segment Size: 28mm


    CONVEX SURFACECONCAVE SURFACE
    Mominal CurveTrue CurveSag(sagitta: 40mm)Sag(sagitta: 50mm)RadiusRadiusCT(mm)ET(mm)Dia(mm)
    1.5491.530
    4.254.184.041.512.37131.29132.508.711.770
    6.256.256.032.273.5787.8788.8011.38.8

    II. Specification

    IndexDiameterFlat top segment
    1.5670 MM28
    Abbe ValueSpecific GravityTransmission
    581.32> 97%
    GuaranteePower Range
    5-yearADD: +100~+300


    III. Features

    1. Flat Top Bifocal Lens

    Bifocal glasses are used for many reasons, but the most common reason is Presbyopia. Presbyopia is a vision condition in which the crystalline lens within the eye looses its flexibility thus hampering the ability to focus. One may need a multifocal lens simply due to age. On an average, once you hit 40 you may became a good candidate for these lenses, although you may require multifocal lenses at a much earlier or later age and for other reasons as well. Always get your eyes checked for vision and eye health reasons.


    A flat top 28 bifocal lens is offers correction for both near and far distances. IThe flat top lens includes a segment at the lower half of the lens with a prescription for reading (near distance). The width of the flat top 28 bifocal is 28mm wide at the top of the bifocal and looks like the Letter D turned 90 degrees.


    2. Blue Cut Lens

    Blue light is a form of visible light with a wavelength in the range from 380nm to 500nm. It has a very short wavelength, and so produces a higher amount of energy. Studies suggest that over time exposure to the blue end of the light spectrum could cause serious long-term damage to eyes.


    Nowadays, we spend more time using a wide variety of digital devices to work, learn and be entertained. Recent digital screens are often equipped with powerful light source such as LED. These digital screens emit intense blue light and can cause eye strain after long exposure.


    Blue Cut Lenses have a special coating which reflects blue light and prevents it from passing through, allowing wearers to enjoy the added benefit of clearer and sharper vision, without altering or distorting color perception.


    IV. Coating Choice

    1. Hard Coated(HC): Making the uncoated lenses are easily subjicted andexposed to scratches

    2. Hard Multi Coated(HMC/AR): Protecting the lens effectively from reflection, enhance functional and charity of your vision

    3. Super hydrophobic Coating: Making the lenswaterproof, antistatic, anti slip and oil resistance


    V. Packing & Shipping

    Envelop
    Choice 1Choice 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 lensSemi-finished lens
    about 500 pairsper carton, 21kgsabout 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. Why Choose Us

    1.We are a manufacturer with many years exporting experience. All lenses are exported to European countries, Japan, Korea, North and South America, Middle East, Southeast Asia and Africa market. We guarantee the quality to all buyers all over the world, and got a high reputation about quality from buyers in the past 8 years exporting time.


    2. We will begin to track the product processing every day until you receive the goods and verify the product quality when you finish the payment.

    You could contact us via Internet chat tools anytime, for example Skype, Whatsapp.


    3. Our producing process is in vacuum dust-free shop, like prepare material, mixed material and take out .Four times quality checking during production process to contral lens quality.


    4. We accept OEM &ODM orders. Actually most of our products are customized. We will try our best to fulfill your requirements about the material, the size and the printing.


    Peggy Lu: +8615052975513 (WhatsApp)


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