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Plano-Concave Lenses SKU: 112-0250E
• Have negative focal lengths • Diverge collimated incident light • Forms only virtual images which are seen through the lens • Reduce spherical aberration, coma and distortion at negative-infinite or near-infinite conjugate ratios • With the concave surface facing the…
Variant specifications
| Product | Value |
|---|---|
| Shape Type | Round |
| Diameter | 25.4 mm |
| Diameter Upper Tolerance | 0 mm |
| Diameter Lower Tolerance | -0.12 mm |
| Center Thickness | 3.8 mm |
| Center Thickness Upper Tolerance | 0.2 mm |
| Center Thickness Lower Tolerance | -0.2 mm |
| Edge Thickness | 4 mm |
| Edge Thickness Upper Tolerance | 0.2 mm |
| Edge Thickness Lower Tolerance | -0.2 mm |
| Focal Length | -650 mm |
| Focal Length tolerance %, +/- | 2 % |
| Focal Length Wavelength | 546 nm |
| Material Type | BK7 |
| Material | BK7 |
| Surface 1 | Value |
|---|---|
| Surface Shape | Concave |
| Radius | -337.17 mm |
| Surface quality, grind or polish | Polished |
| Power and Irregularity, fringes @633 nm | -(0.25) |
| Centration, angle | 0 deg 0 min 0 sec - 0 deg 3 min 0 sec |
| Clear Aperture, % | 90 % - 100 % |
| Surface 1, Wavelength 1 | Value |
|---|---|
| Coating | Uncoated |
| Surface 2 | Value |
|---|---|
| Surface Shape | Plano |
| Surface quality, grind or polish | Polished |
| Power and Irregularity, fringes @633 nm | -(0.25) |
| Clear Aperture, % | 90 % - 100 % |
| Surface 2, Wavelength 1 | Value |
|---|---|
| Coating | Uncoated |
Variant files
Technical drawings, models and data files for SKU 112-0250E.
Product brochures
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