| Place of Origin: | Wuhan,China |
|---|---|
| Brand Name: | Wuhan Siwer Optics |
| Minimum Order Quantity: | 10 pieces |
| Price: | 1.8-20USD/piece |
| Packaging Details: | 1.Tissue paper.plastic foam packaging film And hard carton box with quakeproof filler |
| Delivery Time: | 4-5 weeks |
| Supply Ability: | 5000 pieces/month |
| Material: | Optical Glass,BK7,SF,etc. | Type: | Plano Concave |
|---|---|---|---|
| Diameter Range: | 4-300mm | Demension Tolerance: | +/-0.1mm |
| Surface Quality: | 40/20 | Surface Accuracy: | Lambda/4 In 25.4mm |
| Centration: | 3 Arc Min | Usage: | Optical System |
| Coating: | Single Layer MgF2 | ||
| Highlight: | pcv lens,concave meniscus lens |
||
Ravg<1.75%@400-700nm
Damage threshold: 10J/cm2 532nm 10ns
| Material | Optical glass |
| AR Coating Range | 400-1000nm or customized |
| Diameter Tolerance | +0.0/-0.1 mm |
| Thickness Tolerance | ±0.1 mm |
| Focal Length Tolerance | ±2% |
| Surface Quality | 40/20 Scratch-Dig |
| Surface Flatness (Plano Side) |
λ/2 at 633nm |
| Spherical Surface Powerc (Convex Side) |
1.5λ at 633nm |
| Surface Irregularity (Peak to Valley) |
λ/2 at 633nm |
| Centration | <3 arcmin |
| Clear Aperture | >Ø10.16 mm (Ø1/2" Lenses) >Ø20.32 mm (Ø1" Lenses) |
| Design Wavelength | 546nm |
