Electro-optical distance measuring apparatus
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United States of America Patent
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Apr 20, 1982
Grant Date -
N/A
app pub date -
Apr 21, 1980
filing date -
Apr 27, 1979
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Electro-optical distance measuring apparatus has a light emitting element for producing a modulated light which is projected through a condenser lens and an objective lens. Between the condenser and objective lenses, there is provided a light guide device which comprises a first optical fiber bundle adjacent to the objective lens and a second optical fiber bundle adjacent to the condenser lens. The first and second optical fiber bundles are in end-to-end relationship and the first bundle has a diameter smaller than that of the second bundle.
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