WebIn the same Rxs, lenses with Trivex material are always thinner and lighter than CR-39 monomer due to its index, extreme impact resistance and specific gravity. Patient Benefit—Thin and Light: When compared to CR-39 monomer, lenses made with Trivex material are up to 15 to 20 percent thinner and always about a third lighter. WebGlass is of course an excellent material which offers best optical properties. It's hard so very difficult to scratch, but relatively easy to shatter. Trivex is a plastic compound found in some high end and custom sunglasses. Decent scratch resistance, good optical properties, light and very resistant to impact.
Not sure whether to go with Trivex or Polycarb : r/optometry - Reddit
WebApr 14, 2024 · Trivex lenses are typically more expensive than polycarbonate glasses, but by just how much varies from case to case. There might also be a disparity between different versions of … Web就我的了解，Trivex在全球都是小众的产品，欧美有少量市场，虽然性能非常好。 主要原因： 价格贵，因为工艺问题，成本比PC高很多； 只有美国市场有抗冲击要求，其它市场需要和1.6比光学性能没优势，而额外增加的抗冲击性又多少人用得到呢？ 换句话说，性价比不高。 割边的设备要求较高，商家不愿意折腾，而PC的产业链相对完善（尤其美国），虽然光 … porky actors
为什么trivex镜片光学性能那么好，国内却不多见呢？ - 知乎
WebThe majority of your Rx is your astigmatism which at axis ~180 means all the thickness will be vertical. The top to bottom measurement of that frame is probably 30-34mm. You will notice little to no difference at all in thickness between poly and trivex. Trivex will be a more optically clear lens and with your astigmatism will be more important. WebThe TRIVEX System is intended for use by vascular or general surgeons for treatment of patients of all ages and sexes that require removal of varicose veins. INDICATIONS FOR … WebTrivex material causes a lot of torque so if the lens diameter is minimal, there will be less torque. This helps keep lenses on axis during edging. Using the pin bevel setting on a dry mill generator will help reduce wear on your fining and polishing pads and eliminate sharp edges. Thickness While lenses made from Trivex material have excellent pork worms brain