Product Name | 1.499 Cr39 Progressive UC Optical Lens |
Diameter | 75/12&14mm |
Monomer | CR39 |
Abbe value | 58 |
Specific Gravity | 1.32 |
Power Range | Sph: 0.00~+3.00 0.00~-2.00 Add: +1.00~+3.00 |
MR-8 | MR-7 | MR-174 | Polycarbonate(PC) | NK-55 | CR-39 | |
Refractive Index | 1.61 | 1.67 | 1.74 | 1.59 | 1.56 | 1.499/1.50 |
Abbe Number (ve) | 41 | 32 | 33 | 32 | 37.5 | 58 |
SPECIFIC GRAVITY | 1.30 | 1.35 | 1.47 | 1.20 | 1.28 | 1.32 |
Diameter | 65/70/75 | 65/70/75 | 65/70/75 | 65/70/75 | 55/60/65/72 | 55/60/65/70 |
Impact Resistance | Good | Good | OK | Good | OK | OK |
Static Load Resistance | Good | Good | OK | Good | Poor | Good |