Positive Fresnel lenses are designed for light management, with the SC 248 model having a focal length of 151.7 mm, a clear aperture of 152.9 mm, and a uniform thickness of 1.8 mm. The plano conjugate is infinity, and the Fresnel conjugate is 151.7 mm. The standard material is PMMA, with focal lengths specified at 546 nm and 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 248 |
| Product Name | Positive Fresnel Lense |
| Lens Type | Fresnel Lens |
