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.:
Date of Patent:
Jul. 28, 2020
Filed:
Mar. 05, 2019
Seiko Epson Corporation, Tokyo, JP;
Hiroaki Yanai, Azumino, JP;
SEIKO EPSON CORPORATION, Tokyo, JP;
Abstract
A light source apparatus includes a light source section that includes a plurality of light emitting devices and outputs excitation light, a wavelength conversion element including a wavelength conversion layer having a rectangular light incident surface on which the excitation light outputted from the light source section is incident, a lens group that causes the excitation light to be incident on the light incident surface in such a way that an irradiation area irradiated with the excitation light has a rectangular shape on the light incident surface, and an adjuster that adjusts the position of the irradiation area relative to the position of the light incident surface by using a pivotal action around a first axis of rotation extending in a first direction perpendicular to the light incident surface.