Title:
BULB-TYPE FLUORESCENT LAMP AND LIGHTING APPARATUS
Document Type and Number:
Japanese Patent JP2011175922
Kind Code:
A
Abstract:
To provide a bulb-type fluorescent lamp that can be improved in light flux rise characteristics with a simple configuration, and also to provide a lighting apparatus using the same.
By providing a partition for separating a protrusion and a lighting device on the base side inside a cover, a thermal impact from the lighting device can be suppressed and thereby the temperature at the protrusion can be kept constant. Consequently, as compared with a conventional case wherein amalgam having a low mercury vapor pressure is used, the light flux rise characteristics immediately after lighting are improved and a decline in efficiency of emission during lighting can be suppressed.
Inventors:
ONO TETSUYA
IKADA KUNIHIKO
IKADA KUNIHIKO
Application Number:
JP2010040270A
Publication Date:
September 08, 2011
Filing Date:
February 25, 2010
Export Citation:
Assignee:
TOSHIBA LIGHTING & TECHNOLOGY
International Classes:
F21S2/00; F21S8/02; F21Y103/02
Attorney, Agent or Firm:
Kumagai Masatoshi