公开(公告)号：US20240111209A1

公开(公告)日：2024-04-04

申请号：US18375295

申请日：2023-09-29

Applicant: SEIKO EPSON CORPORATION

Inventor： Wataru YASUMATSU ,  Yuichiro MATSUMOTO ,  Naoya SHINDO

IPC: G03B33/12 ,  G03B21/20

CPC classification number: G03B33/12 ,  G03B21/2013 ,  G03B21/206 ,  G03B21/2066

Abstract: A light source apparatus according to an aspect of the present disclosure includes a first light source section that outputs first light containing a first polarized component and a second polarized component, a second light source section that outputs second light, a wavelength converter that converts the first light into third light, a light combiner that combines the first light, the second light, and the third light, and a filter that attenuates light of the third wavelength band. The light combiner reflects the first polarized component and transmits the second polarized component to cause one of he first polarized component and the second polarized component to exit toward the wavelength converter, and transmits the first light and the second light or the third light and reflects the third light or the first light and the second light. The filter is movable.

公开(公告)号：US20200077058A1

公开(公告)日：2020-03-05

申请号：US16555123

申请日：2019-08-29

Applicant: SEIKO EPSON CORPORATION

Inventor： Yuichiro MATSUMOTO

IPC: H04N9/31 ,  G03B21/20 ,  G01J3/50 ,  G01J3/51

Abstract: A projector includes a measurement unit and a correction parameter generation unit. The measurement unit measures a color of image light of the image formed on a projection surface in terms of a plurality of colors constituting an RGB color system and a Z value in an XYZ color system. The correction parameter generation unit generates a correction parameter based on a first measurement value and a second measurement value. The first measurement value measured by the measurement unit is obtained by converting a measurement value of the color in the RGB color system into the color in the XYZ color system. The second measurement value measured by the measurement unit is a value in the XYZ color system. The measurement unit includes an optical filter having transmittance characteristics corresponding to spectral characteristics of blue light, in a wavelength range of a color light in the RGB color system.