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 922

Specifications

Material: PMMA Acrylic
Lens Type: Non-Imaging - Spot, Positive
Focal Length: 698.6 mm
Facet Spacing: 0.508 mm
Fresnel Conjugate: 1.8 mm
Clear Aperture: 615.7 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 of the Positive Fresnel Lenses?
The focal length of the lenses ranges from 6.3 mm to 764.0 mm, depending on the specific part number.
What is the material used for these lenses?
The standard material used is PMMA (Polymethyl Methacrylate), which has a refractive index of 1.49 and relative dispersion of 58.
What is the typical thickness of these lenses?
The standard thickness of the lenses is 1.8 mm, with some models available in 2.5 mm thickness. Other thickness options (≥ 0.8 mm) are also available upon request.
What wavelength are the focal lengths based on?
The focal lengths listed apply to a wavelength of 546 nm for PMMA.
Can the lenses be customized for specific dimensions?
Yes, outside diameters or sizes can be customized with dimensions beyond the clear aperture by 5-20 mm. Special trimmings or designs are also available upon request.
How do I determine the number of lines per mm for a lens?
The number of lines per mm can be determined by using 1/facet spacing, where facet spacing is provided for each part number.
Are special materials available for these lenses?
Yes, while PMMA is the standard material, other materials can be used upon request.
What are the conjugate distances for the lenses?
Most lenses have a conjugate of infinity on one side, with varying conjugate distances on the other side depending on the specific part number.
What is the maximum clear aperture of these lenses?
The clear aperture of the lenses can range from 6.4 mm to 600.0 x 590.0 mm², depending on the part number and model.
Are the lenses suitable for high-precision optical applications?
Yes, these lenses are engineered to manage light effectively and can be used in high-precision optical systems for focusing and directing light.

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

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