Slit lamp microscope

Details Slit lamp microscope Slit lamp microscope

1998-12-11

2000-06-06

Spyrou, Cassandra

Optical: systems and elements

Compound lens system

Microscope

359385, 351221, G02B 2100

Patent

active

060726237

ABSTRACT:
A slit lamp microscope of the present invention is provided in which it is possible to observe and record a clear image of the lesion portion of the eye to be examined with a high contrast, and at the same time, it is possible to observe and record the peripheral portion of the eye to be examined. The slit lamp microscope has a first illumination system for projecting local illumination light to the eye to be examined for observing a cross section of the observation portion. A second illumination system is provided with a diaphragm for limiting the illumination filed of the illumination light projected to the eye, for illuminating a peripheral portion of the illumination field of the eye projected by the first illumination system. This makes it possible to observe that the cross section and peripheral portion of the observation portion.

REFERENCES:
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patent: 4370033 (1983-01-01), Kani et al.
patent: 4422736 (1983-12-01), Nunokawa
patent: 4715704 (1987-12-01), Biber et al.
patent: 5270747 (1993-12-01), Kitajima et al.
patent: 5349398 (1994-09-01), Koester
patent: 5436679 (1995-07-01), Ohtsuka et al.

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