Optical: systems and elements – Compound lens system – Microscope
Reexamination Certificate
2005-07-29
2008-09-30
Pritchett, Joshua L (Department: 2872)
Optical: systems and elements
Compound lens system
Microscope
C359S368000
Reexamination Certificate
active
07430075
ABSTRACT:
A condenser arrangement for brightfield illumination and/or darkfield illumination for optical microscopes comprises in a housing basic optics having at least one lens, at least one front optics which can be inserted into the illumination beam path in front of the basic optics, and means for inserting the front optics into the illumination beam path of the microscope. A first swiveling arm and a second swiveling arm are swivelably arranged at the housing of the condenser. The first swiveling arm carries first front optics with a high aperture for brightfield illumination and the second swiveling arm carries second front optics for darkfield illumination. The two swiveling arms are arranged at a defined distance from the shared basic optics of the condenser in direction of the optical axis of the illumination beam path. An aperture iris diaphragm is provided on the object side in front of the basic optics and is opened when the cardioid optics are inserted. Further, a darkfield slide with an annular mirror element is provided on the object side at the housing. Operator's controls serve to swivel the two swiveling arms for moving the darkfield slide and for adjusting the aperture iris diaphragm.
REFERENCES:
patent: 2565419 (1951-08-01), Aitcheson et al.
patent: 2642775 (1953-06-01), Rooney et al.
patent: 2674157 (1954-04-01), Heine et al.
patent: 4109304 (1978-08-01), Khvalovsky et al.
patent: 4807980 (1989-02-01), Dietrich et al.
patent: 5042928 (1991-08-01), Richards
patent: 5128808 (1992-07-01), Dosaka
patent: 6905838 (2005-06-01), Bittner
patent: 2001/0003489 (2001-06-01), Shiba et al.
patent: 2002/0191281 (2002-12-01), Osa et al.
patent: 603 322 (1931-09-01), None
patent: 608 644 (1935-01-01), None
patent: 721 942 (1942-06-01), None
patent: 830 840 (1952-02-01), None
patent: 1 123 134 (1962-02-01), None
patent: 24 10 874 (1975-06-01), None
patent: 34 25 674 (1986-01-01), None
patent: 37 00 965 (1988-07-01), None
patent: 10-268205 (1998-10-01), None
patent: 11-153755 (1999-06-01), None
patent: 2002-006224 (2002-01-01), None
Brehm Michael
Dietrich Peter
Heise Heino
Carl Zeiss MicroImaging GmbH
Pritchett Joshua L
LandOfFree
Condenser arrangement for brightfield illumination and/or... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Condenser arrangement for brightfield illumination and/or..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Condenser arrangement for brightfield illumination and/or... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3984854