HELLO , I AM A LENS. WHAT CAN I DO FOR YOU?
The first plastic eyeglass lenses were developed in the 1940s. These lightweight alternatives to glass lenses were call CR-39 plastic lenses. Plastic eyeglass lenses are about half the weight of glass lenses. They are relatively inexpensive and have excellent optical qualities. They also are more impact-resistant than glass lenses.
HOW IS MY PERFORMANCE?
Refractive Index (25ºC) |
1.56 |
Design |
Spherical/Aspherical |
Material |
KOC 55 |
Abbe Value |
36 |
Specific Gravity (20ºC) |
1.27 |
Transmission |
98~99% |
Manufacturer |
KOC (Mitsui-Korea) |
Coating Color |
Green |
Diameter |
65/70/75 |
Coating |
HMC;EMI;Superhydrophobic |
WHERE AM I FROM?
WHERE AM I GOING? IT'S UP TO YOU.
The big self in everyone's heart is altruism!