Positive Fresnel lenses are designed for collimation, collection, or finite conjugate applications. The SC 2045 lens has a focal length of 391.5 mm, a clear aperture of 452.9 mm, and a thickness of 1.8 mm, with the plano conjugate at 419.0 mm and the fresnel conjugate at 6096.0 mm. The standard material is PMMA, corrected for 546 nm wavelength with a ±5% tolerance.
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 2045 |
| Product Name | Positive Fresnel Lense |
| Lens Type | Fresnel Lens |
