fresnel lens (6).mp4
5 year ago
infinite number of lines (i.e., the Fresnel zone) to achieve the same optical effect, while saving the amount of material
For these lines, the overall thickness of the lens is reduced; ordinary Fresnel convex lens is actually a continuous curved
surface is truncated to a section of a discontinuous change of the curvature as the surface is finely divided, so look like a
circle around the lines. Fresnel lenses may in fact be regarded as a series of prisms are arranged in a ring, wherein the
relatively sharp edge, and the center of the convex surface is relatively smooth.
Realpoo Optics is a professional manufacturer of optical glass lenses, such as Spherical Lens, Glass Rod, Fresnel Lens, Diffraction Grating etc. The optics can be offered with coating or without coating. Welcome to send your inquiry.
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