Microscope stage

Details Microscope stage Microscope stage

1995-11-17

1998-07-14

Nguyen, Thong

Optical: systems and elements

Compound lens system

Microscope

359385, 359391, G01N 2101, G02B 2126

Patent

active

057813388

ABSTRACT:
A stage for microscopes has a transparent ceramic glass plate on the working region on its object side and a brightly colored, light-scattering layer between the ceramic glass plate and the metallic base portion of the stage. Light is coupled into end faces of the ceramic glass plate by means of lamps or a glass fiber arranged in the base portion. The stage has outstanding resistance to wear and scratches due to the ceramic glass. By the additional illumination of the ceramic glass, the specimen regions lying outside the illuminating field of the condenser are weakly illuminated against a bright background, so that the observer can select visually, without magnification, object regions of interest and then push them into the illuminating field of the condenser. The ceramic glass covers the condenser opening in the base portion of the stage, so that the condenser is protected against falling contamination. The front lens of the condenser is arranged directly on the side of the parallel-plane ceramic glass plate that is remote from the object. An enlarged illuminating aperture is thereby obtained.

REFERENCES:
patent: 4674846 (1987-06-01), Lippman
patent: 5249077 (1993-09-01), Laronga et al.
patent: 5566021 (1996-10-01), Pettingell et al.

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