Cooling structure, lighting optical system, and projection-type display apparatus including substrate and phosphor formed on the substrate to emit fluorescent light
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United States of America Patent
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Jun 12, 2018
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app pub date -
Dec 11, 2013
filing date -
Dec 11, 2013
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Abstract
A cooling structure includes a phosphor unit, air-blowing systems that cause cooling air to flow, and a duct structure. The phosphor unit includes a substrate and a phosphor that is formed on the substrate and that emits fluorescent light when irradiated with excitation light. The duct structure guides the cooling air blown from the air-blowing systems to the phosphor unit.
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