Title:
LED LAMP AND LIGHTING DEVICE FOR LED AND LIGHTING FIXTURE FOR LED LAMP AND LED ILLUMINATION SYSTEM
Document Type and Number:
Japanese Patent JP2014096373
Kind Code:
A
Abstract:
To provide an LED lamp which allows for determination whether or not an LED lamp is mounted on a lighting device for LED, and which does not cause heat generation or impairment when it is mounted erroneously on a lighting fixture for straight fluorescent lamp.
In an LED lamp, the impedance of a circuit on the LED lamp side is different from any of the impedance of a fluorescent lamp in filament normal state, and the impedance in filament abnormal state. The circuit on the LED lamp side has a resistor for measurement connected with two terminals at both ends, and the resistor for measurement has a resistance different from any of the resistance of a fluorescent lamp in filament normal state, and the resistance in filament abnormal state.
Inventors:
SUZUKI RYO
NOGUCHI TAKUSHI
MURAMATSU TERUTAKA
MATSUI RYOSUKE
KONDO KAZUYOSHI
NOGUCHI TAKUSHI
MURAMATSU TERUTAKA
MATSUI RYOSUKE
KONDO KAZUYOSHI
Application Number:
JP2013255563A
Publication Date:
May 22, 2014
Filing Date:
December 11, 2013
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP
International Classes:
H05B37/02; F21S2/00; F21V23/00; F21V25/04; F21Y101/02
Domestic Patent References:
| JP2008135355A | 2008-06-12 | |||
| JP2008027770A | 2008-02-07 | |||
| JP2008277188A | 2008-11-13 |
Attorney, Agent or Firm:
Shoji Mizoi