Positive Fresnel lenses are designed to manage light with low profile and efficient focusing. The SC 214 is a positive Fresnel lens with a focal length of 607.8 mm, a clear aperture of 460.9 mm, and a thickness of 1.8 mm, optimized for infinite conjugate on the Fresnel side. The lens is made from PMMA with a refractive index of 1.49, and its focal length is specified at 546 nm 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 214 |
| Product Name | Positive Fresnel Lense |
| Lens Type | Fresnel Lens |
