Positive Fresnel lenses are designed to collimate or collect light, with SC 258 being a plano-facet lens with a focal length of 28.7 mm, a clear aperture of 45.0 mm, and a fixed thickness of 1.8 mm. The lens is optimized for infinite conjugate on the plano side and 28.7 mm on the facet side, with a facet spacing of 0.635 mm. The standard material is PMMA, and focal lengths are specified for 546 nm light. Dimensions and specifications are subject to change without notice.
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 258 |
| Product Name | Positive Fresnel Lense |
| Lens Type | Fresnel Lens |
