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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 2135

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Specifications

Material: PMMA Acrylic
Lens Type: Non-Imaging - Spot, Positive
Focal Length: 764 mm
Facet Spacing: 0.508 mm
Fresnel Conjugate: Not Specified
Clear Aperture: 437.3 mm
Thickness: 1.8 mm

Got questions about specs? Use the inquiry form to ask.

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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

Frequently Asked Questions

What is the focal length range for these Fresnel lenses?
The focal lengths range from 6.3 mm to 763.4 mm, depending on the specific model. Each model's focal length is optimized for its intended application, making the lenses versatile across a wide range of optical systems.
What is the standard material used for these lenses?
The lenses are made from PMMA (polymethyl methacrylate), with a refractive index of 1.49. Other materials are available upon request for specific application needs.
What is the typical thickness of these Fresnel lenses?
The standard thickness for the lenses is 1.8 mm, with certain models available in 2.5 mm. Custom thicknesses starting from 0.8 mm are also possible.
What is the range of facet spacing for these lenses?
The facet spacing ranges from 0.076 mm to 0.762 mm, depending on the model. This affects the lens's optical resolution and light management capabilities.
Can these lenses handle specific wavelengths of light?
The lenses are designed for use with 546 nm wavelengths, with a tolerance of ±5%. Custom designs for other wavelengths can be created on request.
What is the clear aperture size of these lenses?
The clear aperture varies between models, ranging from 6.4 mm to 600 mm, allowing them to cover a broad spectrum of applications in optics and imaging.
Can these lenses be customized?
Yes, custom designs, sizes, and trimmings can be made upon request. Special requirements like different focal lengths, facet spacing, or aperture sizes can be accommodated.
How do I determine the number of lines per mm for a lens?
The number of lines per mm can be calculated by taking the reciprocal of the facet spacing (1/facet spacing). This provides the density of lines that influence the lens's resolution and performance.
What is the tolerance level for focal lengths?
The focal lengths listed apply to 546 nm light with a tolerance of ±5%, ensuring precise light focusing and control for various applications.
What environmental conditions can these lenses withstand?
The lenses are primarily made of PMMA, which offers good optical clarity and durability. However, additional details about their environmental stability can be requested based on specific applications.

Got more questions? Use the inquiry form to ask the supplier directly.

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