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.

Date of Patent:
Jul. 25, 2017

Filed:

Mar. 04, 2016
Applicant:

Alfasemi Inc., Taipei, TW;

Inventors:

Te-Lung Shih, Taipei, TW;

Yu-Cheng Chang, Cupertino, CA (US);

Kuo-Chao Lin, Taipei, TW;

Assignee:

ALFASEMI INC., Taipei, TW;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 7/44 (2006.01); H05B 33/08 (2006.01); F21K 9/278 (2016.01); F21Y 115/10 (2016.01);
U.S. Cl.
CPC ...
H05B 33/0884 (2013.01); F21K 9/278 (2016.08); H05B 33/0809 (2013.01); H05B 33/0845 (2013.01); F21Y 2115/10 (2016.08);
Abstract

A high-safety LED tube, comprising: a first side having a first electrode and a second electrode; a second side having a third electrode and a fourth electrode; a first impedance module coupled to the first side; a second impedance module coupled to the second side; a first energy sensor having a first terminal coupled to the first impedance module; a second energy sensor having a first terminal coupled to the second impedance module; an LED unit coupled to the first impedance module and the second impedance module; a switch coupled to the LED unit; and a state control module coupled to the switch; wherein, when the first energy sensor or the second energy sensor detects an energy flowing between the first electrode and the second electrode or between the third electrode and the fourth electrode, the state control module turns on the switch.


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