1.49/1.56 multifocal bifocal flat top round top progressive hmc optical lens wholesaler cheap price eyeglasses

Product Details

Multifocal Lens

We have solutions for seeing distance to near zone.

If you are both short-sighted and long-sighted, you need bifocal spectacles.

To get the our catalogue here.

一、A lens is classified to three groups, single vision, bifocal and multifocal lens.

二、Main types of Bifocal lens are, flat top, round top, blended, straight and so on.

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2、For different indexes, CR39 1.499/1.56/1.6

3、With different sizes, 70/28, 65/28, 70/24

三、Main types of Multifocal lens are, Convex surface Progressive lens(as called Progressive lens), and Concave surface Progressive lens(as called RX lens)

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2、Convex surface Progressive lens(as called Progressive lens) is produced by mold filling, with index CR39 1.499/1.56.

3、Convex surface Progressive lens(as called Progressive lens) is produced by RX lab, with index CR39 1.499/1.56/1.6/1.67/1.74.

4、Multifocal lens divides into different functions as following, Reading lens, Anti fatigue lens, Sport lens, and so on, by making a distinction between size of blind zone and design of corridor.

5、Common options for Multifocal lens are, 9/10/12/14/17

6、Common design are, IOT, SEIKO, OP-TECK, CROSSBOW.