Ultra-lightweight electromagnetic wave concentrator and...

Optical: systems and elements – Lens – With reflecting element

Reexamination Certificate

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C359S853000

Reexamination Certificate

active

07061692

ABSTRACT:
This electromagnetic wave concentrator having high rigidity and flexibility is suitable for communications and is produced by molding using stress relaxation in thin-film material. An ultra-lightweight electromagnetic wave concentrator is obtained by increasing the rigidity by forming a thin-film curved body of an electromagnetic wave reflective surface having a paraboloid shape. Reinforcing grooves in the reflective surface increase rigidity. To form the reflective surface shape and the reinforcing grooves, pressure is applied to the thin-film material with a molding die, or the thin-film material is attached to the molding die by pressure while heating the thin-film material with a heating device, such as a thermostatic chamber.

REFERENCES:
patent: 1382261 (1921-06-01), Akeley
patent: 4171563 (1979-10-01), Withoos
patent: 4733246 (1988-03-01), Rubin et al.
patent: 4743095 (1988-05-01), Dane
patent: 4875467 (1989-10-01), Murphy
patent: 6811271 (2004-11-01), Hayakawa et al.
patent: 62-168402 (1987-07-01), None
patent: 5-305622 (1993-11-01), None
patent: 6-6127 (1994-01-01), None

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