Optical element, and taking optical system and image pickup appa

Details Optical element, and taking optical system and image pickup appa Optical element, and taking optical system and image pickup appa

1995-11-06

1999-11-30

Spyrou, Cassandra

Optical: systems and elements

Having significant infrared or ultraviolet property

Lens, lens system or component

359558, 359566, 359570, 348291, 348342, G02B 300, G02B 518

Patent

active

059952792

ABSTRACT:
An optical element comprises a lens made of a material for shutting off all or most of light in the infrared region, and an optical low-pass filter, wherein the lens and the optical low-pass filter are incorporated with each other.

REFERENCES:
patent: 3940788 (1976-02-01), Abe et al.
patent: 4068260 (1978-01-01), Ohneda et al.
patent: 4987884 (1991-01-01), Nishioka et al.
patent: 5177605 (1993-01-01), Takahashi et al.
patent: 5280388 (1994-01-01), Okayama et al.
patent: 5283691 (1994-02-01), Ogasawara
patent: 5473471 (1995-12-01), Yamagata et al.
patent: 5589882 (1996-12-01), Shiraishi et al.

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