Optical: systems and elements – Lens – Microscope objective
Reexamination Certificate
2006-07-06
2009-11-17
Nguyen, Thong (Department: 2872)
Optical: systems and elements
Lens
Microscope objective
C359S368000, C359S398000
Reexamination Certificate
active
07619829
ABSTRACT:
An immersion objective lens includes a front lens, a lens frame which supports the front lens, and a liquid preventive frame which is attached around the lens frame. The liquid preventive frame includes a liquid bulb holding wall which holds a liquid supplied onto the front lens. A distal end of the liquid bulb holding wall is located more inner in the front lens in a direction parallel to a center axis of the front lens than a distal end face of the front lens.
REFERENCES:
patent: 3837731 (1974-09-01), Amos et al.
patent: 4480910 (1984-11-01), Takanashi et al.
patent: 6980293 (2005-12-01), Harada
patent: 7091502 (2006-08-01), Gau et al.
patent: 5-60981 (1993-03-01), None
patent: 6-208058 (1994-07-01), None
patent: 7-77657 (1995-03-01), None
patent: 2005-62687 (2005-03-01), None
patent: WO 02/093232 (2002-11-01), None
English translation of Japanese reference No. 6-208058.
Harada Mitsuo
Okazaki Kenya
Nguyen Thong
Olympus Corporation
Scully , Scott, Murphy & Presser, P.C.
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