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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 10782601 B1

PDFFull Text
Date of Patent:
Sep. 22, 2020

Filed:

Mar. 08, 2017

Light source device including reflective film reflecting at least part of excitation light, and projector-type image display apparatus

Applicant:

Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;

Inventor:

Makoto Maeda, Nara, JP;

Assignee:

PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD., Osaka, JP;

Attorney:

McDermott Will & Emery LLP

Primary Examiner:

Michelle M Iacoletti

Assistant Examiner:

Magda Cruz

Int. Cl.
CPC ...
G03B 21/20 (2006.01); G02B 5/26 (2006.01); G02B 27/30 (2006.01); G02B 27/14 (2006.01); H04N 9/31 (2006.01); G02B 26/00 (2006.01); G03B 33/08 (2006.01);
U.S. Cl.
CPC ...
G03B 21/204 (2013.01); G02B 5/26 (2013.01); G02B 26/008 (2013.01); G02B 27/141 (2013.01); G02B 27/30 (2013.01); G03B 33/08 (2013.01); H04N 9/3111 (2013.01); H04N 9/3114 (2013.01); H04N 9/3158 (2013.01);
Abstract

A light source device includes a solid light source, a transmissive fluorescent plate having a phosphor that is excited by excitation light for emitting fluorescent light in a traveling direction of the excitation light, and a color filter plate that cuts a part of a wavelength region of light supplied from the fluorescent plate for trimming the light into desirable color light. The light source device further includes a first reflective film disposed on a light path extending from the fluorescent plate to the color filter plate for reflecting at least a part of the excitation light.

Find Patent Forward Citations

Maeda, Makoto. (2020). Light source device including reflective film reflecting at least part of excitation light, and projector-type image display apparatus (U.S. Patent No. 10782601). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10782601

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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