Apochromatic condenser

Details Apochromatic condenser Apochromatic condenser

2004-12-02

2009-02-17

Thompson, Timothy J (Department: 2873)

Optical: systems and elements

Lens

Multiple component lenses

C359S753000

Reexamination Certificate

active

07492531

ABSTRACT:
The invention is directed to an optical system with reduced chromatic aberration, particularly for use in microscopes for imaging the light source in the aperture diaphragm of a condenser. According to the invention, an adapter assembly is associated with a collector assembly. The adapter assembly has an apochromaticizing action and substantially reduces the chromatic aberration of the collector assembly and accordingly achieves the high aperture required on the lamp side for achieving high efficiency.

REFERENCES:
patent: 2576011 (1951-11-01), Grey
patent: 4576448 (1986-03-01), Ikari
patent: 5734498 (1998-03-01), Krasieva et al.
patent: 6560033 (2003-05-01), Hiraga
patent: 2001/0043409 (2001-11-01), Otomo
patent: 2004/0109238 (2004-06-01), Sharma
patent: 32 34 965 (1983-04-01), None
patent: 40 08 383 (1990-09-01), None

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