The Positive Fresnel Lens SC 244 from ORAFOL Fresnel Optics GmbH features a focal length of 40.8 mm and a facet spacing of 0.381 mm. The lens is designed with a Fresnel conjugate of 40.8 mm and a plano conjugate at infinity, making it suitable for applications requiring collimation or collection of light. The clear aperture measures 86.9 mm, and the lens has a standard thickness of 1.8 mm. The standard material used is PMMA, which has a refractive index of 1.49. Custom designs and thickness options are available upon request, allowing for flexibility in various engineering applications.
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 244 |
| Product Name | Positive Fresnel Lense |
| Lens Type | Fresnel Lens |
