Microscope with a condenser lens system having a tapered portion

Details Microscope with a condenser lens system having a tapered portion Microscope with a condenser lens system having a tapered portion

1995-07-12

1997-12-16

Nelms, David C.

Optical: systems and elements

Lens

Microscope objective

359656, 359368, 359389, G02B 2102

Patent

active

056991975

ABSTRACT:
A condenser lens system collects light from a light source to illuminate a sample, which comprises in the named order from the light source side a front group of positive refracting power having at least one lens and a rear group of positive refracting power at least having a positive lens for liquid immersion located closest to the sample and having a flat surface on the sample side.

REFERENCES:
patent: 2305760 (1942-12-01), Bernhardt
patent: 2533371 (1950-12-01), Heine
patent: 2764061 (1956-09-01), Kinder et al.
patent: 3202049 (1965-08-01), Bond
patent: 3297393 (1967-01-01), Ziegler
patent: 3481665 (1969-12-01), Rosenberger
patent: 3659924 (1972-05-01), Shoemaker
patent: 5004307 (1991-04-01), Kino et al.
U.S. Application No. 08/178,847, Tatsuro, filed Jan. 7, 1994.

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