Optical: systems and elements – Compound lens system – Microscope
Reexamination Certificate
2005-12-13
2005-12-13
Nguyen, Thong Q (Department: 2872)
Optical: systems and elements
Compound lens system
Microscope
C359S368000, C359S375000, C359S385000
Reexamination Certificate
active
06975451
ABSTRACT:
In an illumination incoupling system for an optical viewing device, illumination incoupling is provided simultaneously into main observer beam paths and assistant observer beam paths using two semitransparent and two fully reflective deflection elements arranged crosswise and symmetrically with respect to the optical axis of the main objective. Homogeneous illumination of the specimen field may thereby be achieved for both the main observer and the assistant observer.
REFERENCES:
patent: 4674845 (1987-06-01), Matsumura
patent: 4991947 (1991-02-01), Sander et al.
patent: 5126877 (1992-06-01), Biber
patent: 5760952 (1998-06-01), Koetke
patent: 5856883 (1999-01-01), Sander
patent: 5898518 (1999-04-01), Biber
patent: 6011647 (2000-01-01), Geschwentner
patent: 6563113 (2003-05-01), Amann et al.
patent: 33 27 672 (1985-02-01), None
patent: 4331635 (1994-06-01), None
patent: 19650773 (1997-07-01), None
patent: 0661020 (1995-07-01), None
patent: 57-6823 (1982-01-01), None
patent: 95 294 19 (1995-11-01), None
patent: 99 133 70 (1999-03-01), None
Davidson Davidson & Kappel LLC
Leica Microsystems (Schweiz ) AG
Nguyen Thong Q
LandOfFree
Illumination incoupling system for an optical viewing device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Illumination incoupling system for an optical viewing device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Illumination incoupling system for an optical viewing device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3472091