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  1. Freeform Progressive lens anatomy by sdf or xyz

    Hello everyone , What software can I use to read SDF or XYZ file to analyze Freeform Progressive Lens , then generate 3D and 2D graphics ?!
  2. Replies
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    2,149

    Prism ring calculation method

    Hello!
    Attached image shows the prism ring parameter calculated by the Rx software. Can someone kindly teach me the calculation method?
    9458945994609461.:help:
  3. Replies
    3
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    3,320

    The prism wedge angle

    Thanks for your help!
    Material Index is on 1.498 is right, I found the Prism ring generating/ring is change by Blanks fornt curve and Blanks index and Blocking Diameter.
    So, I need find formula to...
  4. Replies
    3
    Views
    3,320

    Calculation the prism ring

    Hello,
    Please help me :
    9429For the attachment image,the prism ring generating/blokcing parameter is software calculated result. But I don't know how to calculation method .Pls help me!!!

    Thanks...
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