Light source for illumination in an optical viewing device
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United States of America Patent
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Jun 21, 2005
Grant Date -
Apr 17, 2003
app pub date -
Oct 9, 2002
filing date -
Oct 11, 2001
priority date (Note) -
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Abstract
The invention concerns a light source having an apparatus for measuring the brightness of the illumination system of an optical viewing device, for example a microscope, in which at least one light sensor (3a) for measuring the intensity of the lamp (1) is arranged, for example, next to the optical waveguide (2). That measurement can be passed on to the user (9), either acoustically or visually, via an electronic unit (4) which compares the measurement to a definable threshold value.
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