Segmented fresnel lens frame

Details Segmented fresnel lens frame Segmented fresnel lens frame

1998-06-26

1999-03-23

Ben, Loha

Optical: systems and elements

Lens

With support

359819, 359742, G02B 702

Patent

active

058868372

ABSTRACT:
Method of assembling a large, lightweight, composite optical device such as a mirror or lens, includes providing a plurality of flat, lightweight optical element sections, fastening each optical element section to an associated frame segment to provide a plurality of optical elements and detachably fastening a plurality of the optical elements together in a manner causing all of them to lie in a single plane. After use, the device is disassembled and the optical elements are stacked in a compact mass to make them readily portable.

REFERENCES:
patent: 3661385 (1972-05-01), Schneider
patent: 4846554 (1989-07-01), Mori et al.
patent: 4906076 (1990-03-01), Schwartz
patent: 5208700 (1993-05-01), Harris et al.
patent: 5442178 (1995-08-01), Baldwin

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