Positive Fresnel Lens SC 277
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 meet 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 277
Specifications |
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|---|---|
| Material: | PMMA Acrylic |
| Lens Type: | Non-Imaging - Spot, Positive |
| Focal Length: | 68.5 mm |
| Facet Spacing: | 0.076 mm |
| Fresnel Conjugate: | infinite mm |
| Clear Aperture: | 88.9 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?
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Ships from:
Germany
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Sold by:
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On FindLight:
since 2020
Frequently Asked Questions
The available focal lengths range from 6.3 mm to 764.0 mm, with specific focal lengths including 6.3 mm, 50.8 mm, 234.7 mm, 500.5 mm, and more. Each focal length is designed to suit various optical applications.
The standard thickness for most of the Positive Fresnel Lenses is 1.8 mm, with some models featuring a thickness of 2.5 mm. Custom thickness options are available upon request.
The standard material used is PMMA (Polymethyl Methacrylate), with a refractive index of 1.49 and a relative dispersion of 58. Other materials can be used depending on specific requirements.
Facet spacing varies across models, ranging from 0.076 mm to 0.762 mm. The spacing affects the focal properties and is an essential factor in lens performance.
Yes, special designs, dimensions, and trimming options can be provided based on customer requests. The outside diameter may also exceed the clear aperture by 5-20 mm, depending on specific requirements.
Clear aperture sizes vary from 6.4 mm to 615.7 mm, depending on the specific model. The clear aperture size directly impacts the amount of light the lens can transmit.
While the focal lengths are listed for 546 nm light, these lenses can be used with other wavelengths, though the performance may vary. Custom configurations are available to optimize for different wavelengths.
These Fresnel lenses are ideal for applications such as solar concentrators, imaging systems, optical sensors, lighting systems, and beam shaping in laser applications.
The focal lengths are specified with a tolerance of ±5%, ensuring high precision and accuracy for various optical applications.
To determine the number of lines per mm, divide 1 by the facet spacing. This calculation is essential for understanding the lens's resolution and light management properties.