Customization: | Available |
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Usage: | Lighting, Medical, Optical, Photography, Astronomy |
Type: | Concave Lens |
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Items | Description | |
Plano-convex Cylindrical Lens EFL 3.91mm+/-1% |
Material: | Schott N-BK7 |
Dimensions: | 8.0x4.0+0.0/-0.1mm | |
Center thickness: | 3.8+/-0.1mm | |
ROC1: | Infinity, plano | |
ROC2: | 2.0mm, CX, CYL | |
Flatness: | S1: Power<1 fringe, IRR<1/4L. S2: Power<3 fringes, IRR<0.7L. | |
Surface quality: | S1&S2: S-D 60-40. | |
Centerness: | <5arcmin | |
Clear aperture: | >90% | |
Chamfer: | <0.2mm(LW)x45deg | |
Coating: | S1&S2: AR coating, Ravg<0.5%@650-1050nm, AOI: 0deg. | |
Standard: | MIL-PRF-13830B |