SC 209 is a positive Fresnel lens with a focal length of 137.8 mm, a clear aperture of 151.0 mm, and a thickness of 1.8 mm. It is designed for infinite conjugate on the Fresnel side and a conjugate distance of 254.0 mm on the plano side. The lens has a facet spacing of 0.254 mm and is manufactured from PMMA with a standard refractive index of 1.49.
Positive Fresnel Lenses can be designed as a collimator, collector or with finite conjugates. They are usually corrected for spherical aberration.
The designs can be trimmed according to customer requirements (within limits of clear aperture). It is possible to combine a Fresnel lens structure with other structures like diffusers or microlens arrays in the same part through double-sided structuring. Optical coatings for increased efficiency are possible.
| ORAFOL Fresnel Optics GmbH | |
|---|---|
| Product Category | Optical Lenses |
| Product Number | SC 209 |
| Product Name | Positive Fresnel Lense |
| Lens Type | Fresnel Lens |
