Illumination apparatus and an endoscope with object illumination using the same
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United States of America Patent
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Issued Date -
Apr 27, 2006
app pub date -
Oct 11, 2005
filing date -
Oct 12, 2004
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
An illumination apparatus to be used, for example, for an endoscope capable of controlling an illumination light irradiated from a light source to an object by way of a light guide inserted through a probe without enlarging the size of the apparatus, the apparatus having a fixed diaphragm for outputting under restriction a bundle of optical beams diffusively irradiated from the light source at a predetermined angle, and a light control mechanism that increases or decreases the amount of a light passing through the fixed diaphragm by approaching or receding the light source to and from the fixed diaphragm.
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