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Photochromic Flat Top SF Lens

Photochromic Flat Top SF Lens

Quick Details Lens Treatment To improve the lens for daily use, some treatments can be done for the lens improvement. Hard Coating For the lens made from plastic, due to the material specification, it is soft and easily scratched, and Hard Coating is a very simple and effective way to increase...

  • Features & Specification

    Quick Details

    Place of Origin

    Danyang, Jiangsu, China (Mainland)

    Brand Name

    Just

    Model Number

    Photochromic flat top SF lens

    Quality Grade

    AB Grade

    Lens Material

    Resin

    Vision Effect

    Multifocal lens

    Coating

    UC,HC,HMC

    Coating Color

    Green

    Reflective Index

    1.56

    Corridor

    12

    Abbe Value

    40

    Diameter

    70

    Gravity

    1.28

    Base

    200,400,600,

    Certification

    CE/FDA/ISO9001


    cmx polish1.jpg


    Lens Treatment

    To improve the lens for daily use, some treatments can be done for the lens improvement.

    Hard Coating

    For the lens made from plastic, due to the material specification, it is soft and easily scratched, and Hard Coating is a very simple and effective way to increase the lens hardness, which makes it could work in the normal daily use.

    Hard Multi-Coating

    It is also called Anti-Reflective coating when the EMI coating is also included. Apparently HMC is worth deserving for the following reason, with the thin, multi-layer film applied to the surface of the lens, it increases the transmittance of of visible light to the eye by 8-12%, which improves the eye view experience, and also the EMI coating could help to absorb the electromagnetic interference, with this function, it could protect the computer users from their daily eye use.

    Super-hydrophobic Coating

    It is an advanced HMC coating, the most physical performance is the slip lens surface, and it is water-repellent and oil-repellent. With this function the lens could stay cleaner.


    Flowchart


    Step:

    1.Ingredients : ready the material of lens and mix according to formula , (formula is a secret )

    2.Filling in model and first curing : filling the monomer into model , then put into curing machine , after some hours with high temperature , it will be solid

    3.Open model : use machine to open model , and take out lens , the model is recycle , can be used many time until broke

    4.Cutting lens edge : the original lens edge is not smooth , so have to cut with specific knife

    5.Clean len : after cutting , will much dusty , so have to clean with specific water and liquid

    6.The first checking : when there is no dusty on lens , will do the first checking , elect the good lens to do next step , the bad one will be threw away

    7.Clip and clean lens : clip the good lens with tool and do one more time cleaning ,

    8.HC coating : put the cleaning lens into HC machine , there are a lot specific liquid , have to be in one by one ,

    9.second curing : after HC , will have to go to another curing machine , after high temperature , the specific liquid will be on surface stable , it will protect lens from scratch

    10. The third checking : checking again , due to maybe have some liquid dots on it , it can not be moved ,so have to check and elect ,

    11.HMC coating : once finish HC , will go to do HMC , it will refective bad ultraviolet ligth and reduce scratch

    12. The fourth checking : after HMC ,we have to check to make sure the coating is ok , if not ok , will have to redo or threw away

    13.The blank Package and store in warehouse : for factory , we put lens into blank envelope with power , then keep in warehouse ,

    14. The fifth checking and Packing with clients’ envelope before shipment : once get order from customers , we will elect lens from warehouse , check quality and replace evelope , after these step ,will can send out ,


    Certificate


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