The Positive Fresnel Lens SC 239 from ORAFOL Fresnel Optics GmbH features a focal length of 102.8 mm and a facet spacing of 0.508 mm. It is designed for infinite Fresnel conjugate and has a plano conjugate of 102.8 mm. The clear aperture measures 133.9 mm, and the lens has a standard thickness of 1.8 mm. This lens is suitable for applications requiring efficient light management and can be customized based on specific project needs. The standard material used is PMMA, which has a 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 239 |
| Product Name | Positive Fresnel Lense |
| Lens Type | Fresnel Lens |
