Optola offers wide range of double convex lenses.
Custom design double convex lenses are available upon request.
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Material | BK7 or UV fused silica |
Focal Length Tolerance | ±1% @589nm |
Design Wavelength | 589nm |
Centration | ≤3′ |
Diameter Tolerance | +0/-0.1mm |
Clear Aperture | >central 90% of diameter |
Center Thickness Tolerance | ±0.1mm |
Edge Thickness | 3.0mm,nominal |
Surface Quality | 20/10(UVFS)/ 40/20(BK7) |
Surface Accuracy | ≤ 1.5λ power,λ/2 irregularity(UVFS) ≤ 1.5λ power,λ/4 irregularity(BK7) |
Chamfers | 0-0.8mm face width×45°±15° |