Positive Fresnel lenses are designed for light management in applications requiring collimation or focusing from infinity to finite conjugates. The SC 246 lens has a focal length of 203.0 mm, a clear aperture of 228.9 mm, and a thickness of 1.8 mm. The plano conjugate is infinity, and the facet spacing corresponds to the listed focal length. All lenses in this series are fabricated from PMMA with a standard refractive index of 1.49 and are manufactured to a consistent thickness of 1.8 mm unless otherwise specified.
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 246 |
| Product Name | Positive Fresnel Lense |
| Lens Type | Fresnel Lens |
