OPTICAL UNIT, LIGHT SOURCE APPARATUS, AND PROJECTION TYPE DISPLAY APPARATUS

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United States of America Patent

APP PUB NO 20190339604A1
SERIAL NO

16511118

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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An optical unit according to one aspect of the present invention includes a substrate, and a fluorescent layer provided on the substrate. The fluorescent layer includes an adhered portion adhered to the substrate and a non-adhered portion that is not adhered to the substrate. The substrate has a concave portion containing an air gap and an adhesive. The adhered portion is part in the fluorescent layer corresponding to a region where the adhesive is provided. An end of the fluorescent layer is located outside the concave portion.

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First Claim

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Patent Owner(s)

Patent OwnerAddress
CANON KABUSHIKI KAISHANO 3-30-2 SHIMOMARUKO OHTA-KU TOKYO

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Takeuchi, Eiji Kawasaki-shi, JP 37 1442

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