Endoscope objective lens system

Details Endoscope objective lens system Endoscope objective lens system

2008-05-27

2008-05-27

Schwartz, Jordan M. (Department: 2873)

Optical: systems and elements

Lens

Reverse telephoto

C359S740000

Reexamination Certificate

active

11389123

ABSTRACT:
An endoscope objective lens system includes a negative front lens group, a diaphragm, and a positive rear lens group, in this order from the object. The negative front lens group includes one lens element, or a plurality of non-cemented lens elements; and the most object-side lens element is constituted by a negative lens element. The positive rear lens group includes a plurality of non-cemented lens elements; and at least one negative lens element is provided in the positive rear lens group.

REFERENCES:
patent: 4806001 (1989-02-01), Okabe et al.
patent: 5223982 (1993-06-01), Suzuki et al.
patent: 5436767 (1995-07-01), Suzuki et al.
patent: 5619380 (1997-04-01), Ogasawara et al.
patent: 5703724 (1997-12-01), Miyano
patent: 5828498 (1998-10-01), Sekiya et al.
patent: 6163410 (2000-12-01), Nagaoka
patent: 6833967 (2004-12-01), Sekita
patent: 7230775 (2007-06-01), Kato
patent: 62-173415 (1987-07-01), None
patent: 5-107470 (1993-04-01), None
patent: 5-341185 (1993-12-01), None
patent: 8-334688 (1996-12-01), None
patent: 10-020189 (1998-01-01), None
patent: 2001-100091 (2001-04-01), None
patent: 2002-228926 (2002-08-01), None
patent: 2002-277734 (2002-09-01), None
patent: 2002-303789 (2002-10-01), None
patent: 2004-117607 (2004-04-01), None
English Language Abstract of JP 10-020189.
English Language Abstract of JP 2001-100091.
English Language Abstract of JP 2002-228926.
English Language Abstract of JP 2002-277734.
English Language Abstract of JP 2002-303789.
English Language Abstract of JP 2004-117607.

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