| Customization: | Available |
|---|---|
| Usage: | Lighting, Medical, Optical, Photography, Astronomy |
| Type: | Concave Lens |
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| Items | Description | |
| Biconcave Lens | Material: | Fused Silica |
| Diameter: | 50.8+0.0/-0.1mm | |
| Center thickness: | 4.0+/-0.1mm | |
| Focal length: | -50mm+/-3%@632.8nm | |
| ROC1: | 22.85mm,CC | |
| ROC2: | 22.85mm,CC | |
| Flatness: | S1&S2:PV<1/8L@632nm | |
| Surface quality: | S1&S2:20-10 | |
| Centerness: | <3arcmin | |
| Clear aperture: | >90% | |
| Chamfer: | <0.25mmx45deg | |
| Coating: | S1&S2:AR coating,Rabs<0.5%@700-900nm,AOI:0deg | |
| LIDT:>2.5J/cm2,20ns,10Hz@800nm | ||
| Standard: | MIL-PRF-13830B | |
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