Inventor
CHANG KEH-SU
TW34 patents
⚠️ This page may combine multiple inventors who share the name “CHANG KEH-SU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
DELTA ELECTRONICS INC
27 patentsUS10120272B1Nov 6, 2018
Fluorescent color wheel and projector
DELTA ELECTRONICS INC9 citations84
US9432640B2Aug 30, 2016
Illumination module
DELTA ELECTRONICS INC8 citations82
US9274407B2Mar 1, 2016
Phosphor device and illumination system and projection apparatus with the same
DELTA ELECTRONICS INC5 citations81
US10309617B2Jun 4, 2019
Phosphor wheel
DELTA ELECTRONICS INC6 citations73
US9726335B2Aug 8, 2017
Phosphor device and manufacturing method thereof having a second phosphor agent to increase the luminous intensity of a converted color light
DELTA ELECTRONICS INC2 citations73
US9322213B2Apr 26, 2016
Display with an adjustable focus mechanism
DELTA ELECTRONICS INC3 citations73
US8632197B2Jan 21, 2014
Illumination system and wavelength-transforming device thereof
DELTA ELECTRONICS INC4 citations73
US10288992B2May 14, 2019
Laser light source for projector and laser projection device
DELTA ELECTRONICS INC2 citations72
US10156729B2Dec 18, 2018
Optical wavelength converter and illumination system with same
DELTA ELECTRONICS INC3 citations71
US9891511B2Feb 13, 2018
Illumination system and wavelength-converting device thereof
DELTA ELECTRONICS INC6 citations71
US10310363B2Jun 4, 2019
Phosphor device with spectrum of converted light comprising at least a color light
DELTA ELECTRONICS INC1 citations62
US10688527B2Jun 23, 2020
Phosphor device comprising plural phosphor agents for converting waveband light into plural color lights with different wavelength peaks
DELTA ELECTRONICS INC1 citations60
US10281810B2May 7, 2019
Projection apparatus comprising phosphor wheel coated with phosphor agents for converting waveband light
DELTA ELECTRONICS INC1 citations60
US9164367B2Oct 20, 2015
Visible and infrared light source for illumination system and projection device comprising the same
DELTA ELECTRONICS INC3 citations59
US11117323B2Sep 14, 2021
Photocuring three-dimensional molding system and vat heating device
DELTA ELECTRONICS INC0 citations52
US10758937B2Sep 1, 2020
Phosphor device comprising plural phosphor agents for converting waveband light into plural color lights
DELTA ELECTRONICS INC0 citations52
US10367330B2Jul 30, 2019
Diffuser, laser-light-source module using the same, and method for manufacturing the same
DELTA ELECTRONICS INC0 citations52
US9753277B2Sep 5, 2017
Wavelength conversion device
DELTA ELECTRONICS INC1 citations52
US9410370B2Aug 9, 2016
Electric curtain
DELTA ELECTRONICS INC0 citations52
US9753276B2Sep 5, 2017
Wavelength-converting device and illumination system using same
DELTA ELECTRONICS INC0 citations51
US9696013B2Jul 4, 2017
Illumination system multi-layered wavelength-converting device
DELTA ELECTRONICS INC0 citations51
US9207525B2Dec 8, 2015
Phosphor wheel and white light illumination device utilizing the same
DELTA ELECTRONICS INC1 citations51
US10319340B2Jun 11, 2019
Real-time color mapping system and method
DELTA ELECTRONICS INC0 citations49
US10281638B2May 7, 2019
Wavelength converting module and light-source module applying the same
DELTA ELECTRONICS INC0 citations41
US9360678B2Jun 7, 2016
Light modulating module and image display
DELTA ELECTRONICS INC0 citations41
US9976879B2May 22, 2018
Color wheel rotation speed detecting module
DELTA ELECTRONICS INC0 citations40
US9291884B2Mar 22, 2016
Method of regulating light wavelength for projection device
DELTA ELECTRONICS INC0 citations38