Positive Fresnel lenses are designed to manage light with plano-facet structures, available in a range of focal lengths and clear apertures. The SC 249 lens has a focal length of 152.0 mm, a clear aperture of 152.0 mm, a thickness of 1.8 mm, and is specified for infinity to finite conjugate applications. All lenses in this series are made from PMMA with a standard thickness of 1.8 mm, except for a few variants with 2.5 mm thickness. Focal lengths are calibrated for 546 nm light with a tolerance of ±5%.
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 249 |
| Product Name | Positive Fresnel Lense |
| Lens Type | Fresnel Lens |
