Objective and family of objectives

Details Objective and family of objectives Objective and family of objectives

2006-03-21

2006-03-21

Epps, Georgia (Department: 2873)

Optical: systems and elements

Lens

With variable magnification

C359S680000

Reexamination Certificate

active

07016120

ABSTRACT:
An objective has a front group, a focus group displaceable along the optical axis and a follow-on lens group having a diaphragm. The front group is arranged at the objective end. The lens group having the diaphragm includes at least two composite lenses and/or two positive lenses and/or the back focus can be adjusted. An objective series is presented wherein all objectives of the series have a uniform appearance and/or the diaphragm is arranged in all objectives proceeding from the image plane at the same location.

REFERENCES:
patent: 4789227 (1988-12-01), Tanaka et al.
patent: 5159493 (1992-10-01), Tsutsumi
patent: 5321554 (1994-06-01), Ishiyama et al.
patent: 5805349 (1998-09-01), Sato
patent: 6115188 (2000-09-01), Nishio et al.
patent: 6122111 (2000-09-01), Neil et al.
patent: 6342974 (2002-01-01), Usui
patent: 2 323 377 (1973-11-01), None
patent: 0 841 583 (1998-05-01), None
patent: WO 00/30348 (2000-05-01), None
http://www.fujinon.co.jp
ews/010515.htm. Fujinon Introduces New Products of “Cine-style Lens Series” for HDTV Cine Cameras, 2001, Fuji Photo Optical Co., Ltd.
“The Photographic Lens” by Sidney F. Ray, 1979, Focal Press, London. pp. 86-89.
“Bauelemente der Optik, Taschenbuch der technischen Optik”, by Naumann et al, Carl Hanser Verlag München Wien, pp. 388-389.

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