Light source device and observation apparatus
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United States of America Patent
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Nov 29, 2016
Grant Date -
Jul 30, 2015
app pub date -
Jan 28, 2015
filing date -
Jan 29, 2014
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A light source device includes a light source unit, a light condensing unit that includes a condenser lens which condenses light from the light source unit and a collimator which renders the condensed light into parallel light having a predetermined diameter, and a wavelength variable interference filter which emits light having a wavelength depending on a gap dimension of a pair of reflection films. The predetermined diameter is smaller than a size of a facing region of the wavelength variable interference filter where the pair of reflection films faces each other.
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