Positive Fresnel lenses are designed to collimate or collect light with infinite conjugates. The SC 2135 has a focal length of 764.0 mm, a clear aperture of 437.3 mm, and a thickness of 1.8 mm, with facet spacing of 0.508 mm. The standard material is PMMA, corrected for 546 nm light with a tolerance of ±5%. Outside diameter may extend up to 5-20 mm beyond the clear aperture.
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 2135 |
| Product Name | Positive Fresnel Lense |
| Lens Type | Fresnel Lens |
