Optical: systems and elements – Lens – Multiple component lenses
Patent
1996-10-28
1998-07-14
Epps, Georgia Y.
Optical: systems and elements
Lens
Multiple component lenses
359660, 359740, G02B 958, G02B 2102, G02B 900
Patent
active
057813507
ABSTRACT:
An objective lens for an endoscope including a first lens group including one negative lens, a second lens group having a positive power, a third lens group having a negative power, and an aperture stop provided between the first lens group and the second lens group. The objective lens satisfies the relationships:
REFERENCES:
patent: 4037938 (1977-07-01), Yamashita et al.
patent: 4042295 (1977-08-01), Yamashita et al.
patent: 4059344 (1977-11-01), Yamashita
patent: 4359271 (1982-11-01), Mihara
patent: 4403837 (1983-09-01), Nakahashi
patent: 4493537 (1985-01-01), Nakahashi
patent: 4606607 (1986-08-01), Kurihara
patent: 4674844 (1987-06-01), Nishioka et al.
patent: 4764001 (1988-08-01), Yokota
patent: 4806001 (1989-02-01), Okabe et al.
patent: 4867546 (1989-09-01), Nishioka et al.
patent: 4979808 (1990-12-01), Yamagata et al.
patent: 5050974 (1991-09-01), Takasugi et al.
patent: 5087989 (1992-02-01), Igarashi
patent: 5175650 (1992-12-01), Takayama et al.
patent: 5198931 (1993-03-01), Igarashi
patent: 5208702 (1993-05-01), Shiraiwa
patent: 5223982 (1993-06-01), Suzuki et al.
patent: 5296971 (1994-03-01), Mori
patent: 5345338 (1994-09-01), Ueda et al.
patent: 5547457 (1996-08-01), Tsuyuki et al.
Koeda Takashi
Tachihara Satoru
Asahi Kogaku Kogyo Kabushiki Kaisha
Epps Georgia Y.
Schwartz Jordan M.
LandOfFree
Objective lens for endoscope does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Objective lens for endoscope, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Objective lens for endoscope will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1888380