Structured films and use thereof for daylight illumination

Details Structured films and use thereof for daylight illumination Structured films and use thereof for daylight illumination

1993-04-26

1996-08-27

Epps, Georgia Y.

Optical: systems and elements

Lens

With multipart element

359741, G02B 308

Patent

active

055510426

ABSTRACT:
A daylighting system usable in either a skylight or a dormer includes a film having a plurality of negative Fresnel lenses.

REFERENCES:
patent: 3809461 (1974-05-01), Baumgardner et al.
patent: 3809462 (1974-05-01), Baumgardner et al.
patent: 3826562 (1974-07-01), Baumgardner et al.
patent: 3972596 (1976-08-01), Baumgardner et al.
patent: 4772094 (1988-09-01), Sheiman

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