reading glasses lens
Fuzhou WTS Photonics Co., Ltd. [China] 
Minimum Order: 0
Quality/Safety Certification: 0.00
reading glasses lens is best used where one conjugate point is more than five times the other.
reading glasses lens
Specifications:
reading glasses lens Material: | Grade A optical glass or Fused Silica |
| Dimension Tolerance: | ±0.1mm(Standard), ±0.05mm(High Precision) |
| Center Thickness Tolerance: | ±0.1mm(Standard), ±0.05mm(High Precision) |
| Paraxial Focal Length: | ±2% |
| Surface quality: | 60/40(Standard), 20/10(High Precision) |
| Clear Aperture: | >85% |
| Surface Figure: | λ/2(Standard), λ/4(High Precision) @633nm |
| Centration: | 3 arc minutes |
| Bevel: | <0.25mm×45° |
| Coating: | Upon requirement |
