Inventor
KADOWAKI RYOTA
JP6 patents
Patents
6 patentsUS10775686B2Sep 15, 2020
Wavelength conversion element, light source apparatus and image projection apparatus
CANON KK1 citations59
US7878659B2Feb 1, 2011
Illumination optical system and projection-type image display apparatus using the same
CANON KK6 citations59
US9915859B2Mar 13, 2018
Optical element, light source device using the same, and projection display apparatus
CANON KK0 citations46
US7976166B2Jul 12, 2011
Optical system for image projection and image projection apparatus including a polarization beam splitting surface
CANON KK0 citations40
US9851552B2Dec 26, 2017
Image display apparatus
CANON KK0 citations36
US9591279B2Mar 7, 2017
Light source unit, control method thereof, and projection-type display apparatus
CANON KK0 citations36