Light source device and light-amount adjusting method
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United States of America Patent
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Jul 19, 2022
Grant Date -
Sep 16, 2021
app pub date -
Jun 1, 2021
filing date -
Dec 4, 2018
priority date (Note) -
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Abstract
A light source device includes: light sources configured to emit kinds of light having wavelength band different from one another; dichroic mirrors that are respectively arranged on a first optical path, the dichroic mirrors having light transmission characteristics different from one another, each dichroic mirror being configured to reflect or pass light emitted from any one of the light sources; light sensors that are respectively positioned on second optical paths, each second optical path being a different optical path from the first optical path and being an optical path propagating light reflected on or passed through the dichroic mirror, each light sensor being configured to detect a light amount of light that propagates through the second optical path; and a controller configured to control a light amount ratio of the kinds of light based on the light amount respectively detected by the light sensors.
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