High-aperture optical imaging system, particularly for...

Details High-aperture optical imaging system, particularly for... High-aperture optical imaging system, particularly for...

2008-06-03

2008-06-03

Choi, William C (Department: 2873)

Optical: systems and elements

Lens

Microscope objective

C359S658000

Reexamination Certificate

active

07382542

ABSTRACT:
The invention is directed to a high-aperture optical imaging system, particularly for microscopes, which comprises an objective and a tube lens unit and in which the objective has a magnification of less than or equal to 40× and a numerical aperture of greater than or equal to 1.0 and is chromatically corrected up to the infrared.

REFERENCES:
patent: 5502596 (1996-03-01), Suzuki
patent: 5659425 (1997-08-01), Suzuki
patent: 5982559 (1999-11-01), Furutake
patent: 7019910 (2006-03-01), Hoppen

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