Untitled (parabolic lens), 1969/2019 by Fred Eversley, 3-colour, 3-layer cast polyester, 50.2 x 50.2 x 15.9 cm (13) | Ocula
Fresnel LENS and PARABOLIC MIRROR APERTURE SOLAR FRESNEL POWER CPV Part 2 - YouTube
20th Century 1918 Huge Parabolic Concave Mirror Lighthouse Mirror Optical Lens at 1stDibs | large concave mirror, concave lens for sale, concave mirror for sale