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Biconcave Lenses SKU: 114-0206E
• Have negative focal lengths diverge collimated incident light • Form only virtual images which are seen through the lens • Minimize spherical aberration, coma and distortion at unit conjugate ratio These lenses are symmetrical with equal radii on both sides. 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 | 2.7 mm |
| Center Thickness Upper Tolerance | 0.2 mm |
| Center Thickness Lower Tolerance | -0.2 mm |
| Edge Thickness | 6.2 mm |
| Edge Thickness Upper Tolerance | 0.2 mm |
| Edge Thickness Lower Tolerance | -0.2 mm |
| Focal Length | -40 mm |
| Focal Length tolerance %, +/- | 2 % |
| Focal Length Wavelength | 546 nm |
| Material Type | BK7 |
| Material | BK7 |
| Surface 1 | Value |
|---|---|
| Surface Shape | Concave |
| Radius | -41.95 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 | Concave |
| 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 114-0206E.
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