Eccentric Fresnel lens sheet and method of making same

Optical: systems and elements – Lens – With multipart element

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Details

359900, 264 25, 425808, G02B 308, B29D 1100

Patent

active

053900502

ABSTRACT:
An eccentric Fresnel lens is formed from a concentric Fresnel lens sheet or Fresnel lens sheet mold. The concentric Fresnel lens sheet or mold is cut to produce an eccentric Fresnel lens having a center offset from the optical axis of the concentric Fresnel lens.

REFERENCES:
patent: 439027 (1984-03-01), Shioda et al.
patent: 2441747 (1948-05-01), Beshgetoor
patent: 2510344 (1950-06-01), Law
patent: 3263079 (1966-07-01), Mertz et al.
patent: 3628854 (1971-12-01), Jampolsky
patent: 3848980 (1974-11-01), Plummer
patent: 3972593 (1976-08-01), Appledorn et al.
patent: 3982822 (1976-09-01), Conder et al.
patent: 4076384 (1978-02-01), Deml et al.
patent: 4147408 (1979-04-01), Plummer
patent: 4152047 (1979-05-01), Inoue
patent: 4173399 (1979-11-01), Yevick
patent: 4374609 (1983-02-01), Lange
patent: 4391495 (1983-07-01), Mazurkewitz
patent: 4458993 (1984-07-01), Kempf
patent: 4468092 (1984-08-01), Inoue et al.
patent: 4482206 (1984-11-01), Van Breemen
patent: 4509822 (1985-04-01), Clausen et al.
patent: 4512631 (1985-04-01), VanBreemen
patent: 4525029 (1985-06-01), Inoue et al.
patent: 4550977 (1985-11-01), Inoue et al.
patent: 4573121 (1986-02-01), Saigo et al.
patent: 4666248 (1987-05-01), van de Ven
patent: 4674836 (1987-06-01), Yata et al.
patent: 4701020 (1987-10-01), Bradley, Jr.
patent: 4708435 (1987-11-01), Yata et al.
patent: 4721361 (1988-01-01), van de Ven
patent: 4725134 (1988-02-01), Ogino
patent: 4919518 (1990-04-01), Ogino et al.

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