Positive Fresnel Lens SC 235
Description
Our SC series lenses are crafted through advanced injection molding and compression molding technologies, insuring a superior surface quality and by that optical performance.
The unique design of our polymer Fresnel lenses not only ensures optimal optical performance but also offers significant advantages. Compared to traditional glass lenses our lenses provide substantial weight, space and cost reductions making them indispensable in lighting, sensor, and machine vision applications.
At ORAFOL Fresnel Optics we take pride in offering comprehensive solutions, from optical design and prototyping to tooling and high-volume production. Whether you choose one of our standard products or opt for a custom solution, including high-volume production, we are committed to meeting your specific requirements.
Customization options include precise trimming to desired shape, changing of thickness (>0.8 mm) and material (PMMA, Polycarbonate, silicone on glass), optical coating (reflective and anti-reflective coating of various kinds) and combination with other components (diffusive microstructures, microlens arrays) directly into the plano side of the lens. A completely new design of the microstructure specificly made for your application including tooling and prototyping is also possible. Contact us for details.
Positive Fresnel Lens SC 235
Specifications |
|
|---|---|
| Material: | PMMA Acrylic |
| Lens Type: | Non-Imaging - Spot, Positive |
| Focal Length: | 50.8 mm |
| Facet Spacing: | 0.229 mm |
| Fresnel Conjugate: | infinite mm |
| Clear Aperture: | 77.0 mm |
| Thickness: | 1.8 mm |
Features
- Lightweight, volume-efficient design
- High apertures and optically effective surfaces
- Cost-effective solutions for diverse applications
- Expertly crafted with cutting-edge technology
- Backed by ORAFOL Fresnel Optics' legacy of top-quality manufacturing
Applications
- Advanced lighting applications
- Optical sensor technology
- Machine vision systems
For pricing, technical or any other questions please contact the supplier
- No registration required
- No markups, no fees
- Direct contact with supplier
Contact Supplier
How to order?
-
Ships from:
Germany
-
Sold by:
-
On FindLight:
since 2020
Frequently Asked Questions
The focal lengths range from 6.3 mm to 764.0 mm, with specific values depending on the lens model.
The standard thickness is 1.8 mm, with some models having a thickness of 2.5 mm. Custom thicknesses of 0.8 mm or greater are available upon request.
The lenses are made from PMMA (Polymethyl Methacrylate) with a refractive index of 1.49 and relative dispersion of 58.
The facet spacing varies from 0.076 mm to 0.762 mm, depending on the model.
Yes, special designs, thicknesses, and dimensions can be customized upon request.
The clear aperture varies by model, ranging from 6.4 mm to 615.7 mm, with specific values for each lens.
The focal length tolerance is ±5% at 546 nm for PMMA material.
Yes, other materials are available upon request, depending on the application requirements.
The outside diameter or size can be up to 5-20 mm beyond the clear aperture, but special dimensions or trimmings are also possible.
The number of lines per mm can be determined by using 1 divided by the facet spacing.