Fresnel-Type Reflector, Laser Cut by DrewTM 3d model
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Fresnel-Type Reflector, Laser Cut by DrewTM

Fresnel-Type Reflector, Laser Cut by DrewTM

by Thingiverse
Last crawled date: 3 years ago
A flat pattern that can be scrunched into shallow conical rings which approximate a parabolic reflector (focuses far-away light sources into a small area). Focal length and diameter are both about 11".
UPDATE 2018-06-18: I have added an Octave script that generates flat patterns for other geometries.

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