Optical fiber coupling assembly for optical detecting device
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United States of America Patent
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N/A
Issued Date -
Dec 5, 2002
app pub date -
Jun 1, 2001
filing date -
Jun 1, 2001
priority date (Note) -
Abandoned
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Abstract
An optical fiber coupling assembly includes an optical fiber receiver, an optical spacer, and an optical filter such as a linear variable filter. The optical spacer can comprise either a monolithic block of optically transparent material, or an optical cavity within reflective walls. The fiber receiver can comprise either a machined attachment on an opaque lightweight block or can be a surface on the optical spacer configured to receive and adhesively bond an optical fiber. The optical spacer recirculates light that is incident on an optical filter segment that is not within the segment's designated wavelength range, thereby permitting multiple passes of the light within the assembly. A color measuring sensor device using the fiber coupling assembly can be incorporated with other components into a spectrometer device such as a portable calorimeter having a compact and rugged construction suitable for use in the field.
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