Optical attenuator, optical photometer and method for controlling quantity of light
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United States of America Patent
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N/A
Issued Date -
Aug 9, 2001
app pub date -
Jan 29, 2001
filing date -
Jan 28, 2000
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
An optical attenuator realizable at a lower cost, for easily attenuating a quantity of light transmitted through an optical fiber, an optical photometer using the optical attenuator and a method for controlling a quantity of light by the optical attenuator. The optical attenuator (10, 11) comprises: two ferrules (41, 42) provided so that top surfaces thereof are stood opposite to each other, in which an optical fiber (31, 32) is connected to a base edge portion on each of the ferrules and either or both of the ferrules can be moved along an optical axis of each ferrule; and a split sleeve (2) for holding the ferrules in the same axis line (X, Y).
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