Index 1.499 lens

  • TECHNICAL DATA

CR-39 UV360, UV400 Lens

Specification
Refractive Index(ND)1.499
Abbe Value(VD)58
Specific Gravity1.32
MaterialCR-39
Diameter55,60,65,70mm
Coating
Color
UV protectionUV400, UV420

FINISHED CR-39

PLUS 55mm 
SPH+0.25 to +6.00
CYLUp to -2.00
PLUS 55mm EXT 
SPH+6.25 to +8.00
CYLUp to -2.00
PLUS 60mm 
SPH+0.25 to +6.00
CYLUp to -2.00
PLUS 60mm EXT 
SPH+6.25 to +8.00
CYLUp to -2.00
PLUS 65mm 
SPH+0.25 to +6.00
CYLUp to -2.00
PLUS 65mm EXT 
SPH+6.25 to +8.00
CYLUp to -4.00
PLUS 70mm 
SPH+0.25 to +6.00
CYLUp to -2.00
PLUS 70mm EXT 
SPH+6.25 to +5.00
CYLUp to -2.00
PLUS 75mm 
SPH+0.25 to +4.00
CYLUp to -2.00
MINUS 75mm 
SPH-0.00 to -4.00
CYLUp to -2.00
MINUS 65mm 
SPH-0.00 to -6.00
CYLUp to -2.00
MINUS 65mm EXT 
SPH-0.00 to -8.00
CYLUp to -4.00
MINUS 70mm 
SPH-0.00 to -6.00
CYLUp to -2.00
MINUS 70mm EXT 
SPH-0.00 to -8.00
CYLUp to -4.00

FINISHED CR-39 UV400

PLUS 65mm 
SPH+0.25 to +6.00
CYLUp to -2.00

 

MINUS 70mm 
SPH-0.00 to -6.00
CYLUp to -2.00

FINISHED CR-39 FLAT TOP

PLUS 70/28mm 
SPH+0.00 to +3.00
ADD+1.00 to +3.00

FINISHED CR-39 ROUND TOP

PLUS 70/28mm 
SPH+1.00 to +3.00
ADD+1.00 to +3.00
Remark:RX Lens power range including but not limited to the above range.
Learn more information about RX lens of Yuzhou Optics.

Production Process 

Test Report

1. Drop Ball Testing
2. Abrasion Resistance Test
3. Light Transmittance Test
4. Reflected light test
Read more