JPS63193457A - Fluorescent lamp - Google Patents

Abstract

PURPOSE:To enable starting with a starting voltage being lowered in a rapid starting type lighting circuit by forming a conductive filament of 1 mm to 3 mm in width along tube axes on outer surfaces of glass tubes. CONSTITUTION:A rapid starting type fluorescent lamp is formed of two rectilinear glass tubes 1 of 13 mm to 24 mm in their inner diameters so as to communicate at their upper parts to compose a container. Phosphor films 2 are formed on inner surfaces of these glass tubes 1, and electrodes are sealed on both ends of the glass tubes 1. Further, mercury of several +mgs and inert gas of several Torrs are sealed in the glass tubes 1. A base 4 is mounted on one end of the container. A conductive filament 5 of 1mm to 3mm in width, for example, made of an aluminium foil or the like is formed along tube axes on outer surfaces of the glass tubes, and at least one end of its filament is electrically connected with one of base pins 6 planted in the base 4. Hence, lighting is enabled sufficiently with a lamp starting voltage much lowered in a rapid starting type lighting circuit.

Description

[Detailed description of the invention] Industrial applications The present invention relates to a compact fluorescent lamp.

Conventional technology In recent years, glass tubes with an inner diameter of 1
Compact fluorescent lamps with a size of 3 to 24 mm have become widespread, and until now such fluorescent lamps have mainly been put into practical use as starter-type lamps.

Problems to be Solved by the Invention However, there is a problem in that such fluorescent lamps cannot be used with a rapid start type lighting circuit because it is difficult to start the lamp.

The present invention provides a fluorescent lamp that has a low starting voltage and can be started with a rapid start type lighting circuit.

Means for Solving the Problems The fluorescent lamp of the present invention has a glass tube with an inner diameter of 13 to 24 mm and a curved discharge path, and has a conductive line with a width of 1 to 3 m along the tube axis on the outer surface of the glass tube. It has a configuration with.

Effect: Such a configuration facilitates lamp discharge and significantly reduces the lamp starting voltage.

EXAMPLE Hereinafter, an example of the present invention will be described with reference to the drawings.

As shown in FIG. 1, the rabbit-start type fluorescent lamp according to the embodiment of the present invention has two straight glass tubes 1 having an inner diameter of 13 to 24+ nm connected at their upper portions to form a container. A phosphor coating 2 is formed on the inner surface of the tube 1, and electrodes 3 are sealed at both ends of the glass tube 1.

Furthermore, several tens of tons of mercury and several tons of rare gas are inside the glass tube 1.
orr is enclosed. A cap 4 is attached to one end of the container.

On the outer surface of the glass tube 1, along the tube axis direction, there is a width l to 3c.
A conductive wire 5 made of aluminum foil or the like is provided, and one end thereof is electrically connected to one of the cap bottles 6 implanted in the cap 4. No. 5 serves as a starting aid to facilitate lamp discharge, significantly lowering the starting voltage and lighting the lamp.

As described above, in the rabbit-start type fluorescent lamp with a bent discharge path according to the embodiment of the present invention, conductive wires 5 having lengths 1 to 3- are provided on the outer surface of the glass tube 1 along the tube axis. ,
The rapid start type lighting circuit significantly reduces the starting voltage of the lamp, allowing for sufficient lighting.

Next, a wing body example of the present invention will be explained.

The total length of the lamp including the base 4 is 410 m, the inner diameter of the glass tube 1 is 18 m, and the width of the conductive wire 5 is 0.5 m.
wm, 1 wa, 2 m, 3- and 4
Ten fluorescent lamps each having the structure shown in FIG. 1 were manufactured using wa aluminum foil. Then, when a lighting test was conducted using a rabbit start lighting circuit at an ambient temperature of 25° C., including a conventional fluorescent lamp without aluminum foil, the results shown in FIG. 2 were obtained. As shown in Figure 2, the starting voltage of a conventional fluorescent lamp is 98V, whereas the starting voltage of a fluorescent lamp with conductive stripes is linear up to a width of 1 m. The starting voltage decreased significantly to 77V when the voltage was 100%. Increase the width by another 2 m, 3 tm
Even when expanded to 4, the value was almost the same as that of 11111.

Furthermore, fluorescent lamps were manufactured in the same manner using 24 glass tubes with an inner diameter of 13 m, and a lighting test was conducted.
The same results as shown in FIG. 2 were obtained.

Note that when the width of the conductive line exceeds 3 lines, the total luminous flux of the lamp tends to decrease significantly because the light is blocked. Therefore, the width of the conductive filament needs to be 1 to 3 widths.

FIG. 3 shows another embodiment of the invention, in which a conductive strip 5 is provided on the outer surface of a U-shaped glass tube l. In FIG. 3, parts common to those in FIG. 1 are given the same numbers.

DETAILED DESCRIPTION OF THE INVENTION As described in detail, the present invention provides a rapid start type fluorescent lamp that can be sufficiently lit even with a rapid start type lighting circuit because the starting voltage can be significantly reduced. It is something that can be done.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway front view of a fluorescent lamp which is an embodiment of the present invention, Fig. 2 is a diagram showing the relationship between the width of the conductive line of the fluorescent lamp and the starting voltage, and Fig. 3 is a diagram showing the relationship between the width of the conductive line of the fluorescent lamp and the starting voltage. FIG. 3 is a partially cutaway front view of a fluorescent lamp according to another embodiment of the present invention. 1... Glass tube, 2... Fluorescent coating,
3. Old... Electrode, 4... Base. Agent's name: Patent attorney Toshio Nakao Baka 1 person 3-hene 4-location 5-゛sen 1 woodcutter line east map 2 nose 41 line east 71 noon (mm)

Claims (1)

[Claims] A fluorescent lamp having a glass tube inner diameter of 13 to 24 mm and a curved discharge path, characterized in that a conductive strip with a width of 1 to 3 mm is provided on the outer surface of the glass tube along the tube axis.