The KPA043 Aspheric Condenser Lens is an uncoated Aspheric Condenser Lens, with a 45.0 mm diameter and a 31.18 mm effective focal length. It is fabricated using B270 glass providing excellent transmission in the visible to near-infrared regions. The aspherical surface is precision molded, while the plano back surface is ground and polished. Ideal for light collection, projection, illumination, detection, and condensing applications.
| Model | KPA043 |
|---|---|
| Lens Type | Aspherical |
| Lens Shape | Plano-Convex |
| Effective Focal Length | 31.2 mm |
| Diameter | 1.77 in. (45.0 mm) |
| Antireflection Coating | Uncoated |
| Lens Material | B270 Optical Crown Glass |
| Center Thickness (Tc) Tolerance | ±0.25 mm |
| Surface Quality | 80-50 scratch-dig |
| Wavelength Range | 380 to 2100 nm |
| Diameter Tolerance | +0/-0.4 mm |
| Te | 3.0 mm |
| Edge Thickness (Te) Tolerance | ± 0.25mm |
| Focal length tolerance | ±5 % |
| BFL | 19.36 mm |
| P2 | -11.82 mm |
| Clear Aperture | 1.476 in. |
| Centration, Spherical Lenses | ±25 arc min |
| Wedge | "Dia. <10, ±30 arc min; 10 <25, ±35 arc min; 25 <70, ±30 arc min; 75, ±20 arc min" |
| Damage Threshold | 37.5 mm |
| Cleaning | Non-abrasive method, acetone or isopropyl alcohol on lens tissue recommended |
