| Customization: | Available |
|---|---|
| Usage: | Lighting, Medical, Optical, Photography, Astronomy |
| Type: | Concave Lens |
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| Items | Description | |
| BK7 Lens | Material: | Schott N-BK7 |
| Dimensions: | 67.9x13.9+/-0.1mm | |
| Center thickness: | 1.5+/-0.2mm | |
| Edge thickness: | 2.3+/-0.1mm | |
| R1: | 260mm+/-2% CC | |
| R2: | infinity | |
| Flatness: | 3/-(5),S1;3/6(3),S2 | |
| Surface quality: | 5/2x0.063 per CA;5/2x0.25 outside test area,S1&S2 | |
| Centerness: | <3arcmin | |
| Clear aperture: | >5.0x30.0mm | |
| Chamfer: | 4x0.3x0.3+0.2/-0.0mmx45deg,Corner bevel | |
| all other edges:0.3+0.3mmx45deg | ||
| Coating: | AR coating,Ravg<0.5%@450-700nm,AOI:0-20deg,S1&S2 | |
| Standard: | ISO 10110 | |
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