Frequently Asked Questions

The focal lengths range from 6.3 mm to 764.0 mm, depending on the specific model.

The standard material used is PMMA (Polymethyl Methacrylate), with a refractive index of 1.49 and a relative dispersion of 58. Other materials are available upon request.

The standard thickness for these Fresnel lenses is 1.8 mm, with some models reaching 2.5 mm. Custom thicknesses (≥ 0.8 mm) are also available upon request.

Yes, custom dimensions or special trimmings can be realized based on your specific requirements.

To determine the number of lines per mm, divide 1 by the facet spacing for each model.

The clear aperture ranges from 6.4 mm to 600 mm x 590 mm, depending on the lens model.

Yes, special designs are available on request for specific applications.

The tolerance for focal lengths is ±5%, and they are optimized for use at 546 nm for PMMA.

Yes, the outside diameter or size may extend 5-20 mm beyond the clear aperture.

The lenses are designed for 546 nm light, but other wavelengths may be accommodated with custom designs or materials.

You May Also Like