Methods and apparatus for an optical illuminator assembly and its alignment
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United States of America Patent
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Apr 28, 1998
Grant Date -
N/A
app pub date -
Jul 30, 1996
filing date -
Jul 30, 1996
priority date (Note) -
In Force
status (Latency Note)
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Abstract
An optical illuminator assembly for an analytical instrument, such as a clinical hematology or a flow cytometer instrument, and method of aligning the components of the illuminator assembly and orienting the illuminator assembly. The illuminator assembly includes a plurality of optical components, such as a laser source, e.g., a laser diode, optionally a spatial filter, a beam shaping aperture, and a focussing lens. The optical components are mounted in or to a housing and are internally oriented with respect to the housing to produce a focussed laser beam output. The housing is in turn mounted on an alignment mechanism which can move the focussed beam in four degrees of freedom, thereby to direct the focussed beam to a particular location. Thus, a factory alignment and a low cost prealigned optical illuminator assembly is obtained, which can be easily oriented for use in an instrument.
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