Title:
【発明の名称】白熱灯調光器
Document Type and Number:
Japanese Patent JP3234245
Kind Code:
B2
Abstract:
PURPOSE:To provide an incandescent lamp of which heat radiation efficiency is improved, of which load controlling capacity can be high, and of which operation part to be installed to a wall can be compact by installing a dimmer unit a panel such as an installation panel. CONSTITUTION:A dimmer unit 2 is disposed in an installation panel with a phase control circuit inserted into one line of a power supply line 30 connected with a hook ceiling 4 at which a lighting apparatus is suspended. An operating part 3 is disposed in a wall surface Y, and it is connected with the dimmer unit 2 by a previously wired wiring 5 inside the wall surface Y and a ceiling X. The dimmer unit 2 contains a phase control circuit, the operation part 3 is disposed at the wall surface Y similarly to general wiring accessories, and an operation knob 17 of a variable resistor for setting a dim degree and a light emitting diode LED are exposed in the surface.
Inventors:
Akihiko Hamada
Application Number:
JP12163591A
Publication Date:
December 04, 2001
Filing Date:
May 28, 1991
Export Citation:
Assignee:
MATSUSHITA ELECTRIC WORKS,LTD.
International Classes:
F21V23/00; H05B37/02; H05B39/08; (IPC1-7): H05B39/08; F21V23/00
Domestic Patent References:
| JP62193486A | ||||
| JP5636889A | ||||
| JP5890086U | ||||
| JP60133599U | ||||
| JP5216778U | ||||
| JP63133094U | ||||
| JP4417980Y2 |
Attorney, Agent or Firm:
Keisei Nishikawa (1 person outside)