Junyun Wang

US Patent:

20150359059, Dec 10, 2015

Filed:

Jun 10, 2014

Appl. No.:

14/300235

Inventors:

- Anaheim CA, US
Joel Snook - Grass Valley CA, US
Junyun Wang - Palo Alto CA, US
Ardeshir Esmaeili - San Jose CA, US

International Classification:

H05B 33/08

Abstract:

A light emitting diode retrofit lamp for replacement of fluorescent lamp or tube driven by fluorescent ballast is provided. The retrofit lamp consists of an enhanced circuit that overcomes the compatibility issues with the fluorescent ballasts. The circuit of the retrofit lamp comprises a deflickerizer circuit that prevents the flicker in the lamp when the lamp operates in the frequency range of 0.1 Hz to 60 Hz. The deflickerizer circuit further provides a method to align frequency with the ballast frequency and maintains phase to avoid low frequency interference.

US Patent:

20150252958, Sep 10, 2015

Filed:

Mar 7, 2014

Appl. No.:

14/201428

Inventors:

- Anaheim CA, US
Daryl Cheim - San Jose CA, US
Junyun Wang - Palo Alto CA, US
George Xie - San Jose CA, US

Assignee:

Lunera Lighting, Inc. - Anaheim CA

International Classification:

F21K 99/00
F21V 29/503
F21V 23/00
F21V 23/02
F21V 8/00
F21V 29/70

Abstract:

An edge lit LED tube that can control light compatible with different ballast such as instant start, rapid start and programmed start is provided. The edge lit LED tube can tune the output light angle by controlling the etching of the acrylic light guide. An edge lit LED tube that has no minimum LED count and can be driven from a single LED is further provided.