Positive Fresnel lenses are designed to collimate or collect light with finite or infinite conjugates. The SC 234 lens has a focal length of 38.0 mm, a clear aperture of 56.3 mm, and a thickness of 1.8 mm, with the plano side conjugate at infinity and the facet side conjugate at 38.0 mm. The standard material is PMMA, and the focal length tolerance is ±5% at 546 nm.
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 234 |
| Product Name | Positive Fresnel Lense |
| Lens Type | Fresnel Lens |
