Anamorphic optical system

Details Anamorphic optical system Anamorphic optical system

1992-03-05

1993-04-06

Ben, Loha

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359207, 359793, 359216, G02B 2608

Patent

active

052008509

ABSTRACT:
An anamorphic optical system is provided with an imaging lens group comprising one or more plastic lenses and a single plastic correcting lens disposed on the image plane said of the imaging lens. The focal displacement of the optical system due to temperature changes is kept within the focal depth of the system.

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patent: 4557567 (1985-12-01), Azumi et al.
patent: 4564269 (1986-01-01), Uehara
patent: 4753524 (1988-06-01), Sugiyama
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patent: 4799747 (1989-01-01), Yamakawa
patent: 4962984 (1990-10-01), Kung
patent: 5015079 (1991-05-01), Minefuji
patent: 5064260 (1991-11-01), Shiraishi
patent: 5084784 (1992-01-01), Hirano
patent: 5140146 (1992-08-01), Metlitsky et al.
English Abstract of Japanese Laid-open Patent Publication No. 59-34512.

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