JPH0831374A - Fluorescent lamp and its device - Google Patents

Abstract

PURPOSE:To provide a fluorescent lamp and an associate device with lamp, with which the light flux rising characteristics can be enhanced, which can present a high efficiency and high output, and can be embodied small and light. CONSTITUTION:Mercury 10 and an argon rare gas 11 are encapsulated in a dual U-shaped fluorescent lamp, whose inner surface is lined with a phosphor layer 8, and amalgam 9 consisting of bismuth-indium is encapsulated in the part at one of the ends. The device further includes a holder 2 for the lamp, a globe 6 enclosing the lamp and holder 2, a lighting circuit 3 for lighting up the lamp 1, and a case 4 containing the lighting circuit 3 and having a base metal 5. An amalgam, for example consisting of indium, which is more compatible with mercury 10 than the first named amalgam 9 is included in the phosphor film 8.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fluorescent lamp and a fluorescent lamp device.

[0002]

2. Description of the Related Art Conventional fluorescent lamps and fluorescent lamp devices, for example, bulb-shaped fluorescent lamps, use a fluorescent lamp having a bent portion and an amalgam enclosed in one end thereof. Was regulated. Further, an auxiliary amalgam was installed near the electrodes of this fluorescent lamp, and necessary mercury was supplied into the fluorescent lamp immediately after lighting to improve starting and luminous flux rising characteristics.

[0003]

However, in such a conventional light bulb type fluorescent lamp, since it takes time for the mercury emitted from the auxiliary amalgam to diffuse into the fluorescent lamp after being turned on, it is a normal fluorescent lamp. Compared with the above, the luminous flux rising characteristic is poor, and this characteristic is very poor particularly in a fluorescent lamp having a long tube length or a narrow tube diameter.

An object of the present invention is to provide a fluorescent lamp capable of reducing the time required for diffusion of mercury even in an arc tube having a long tube length or a narrow tube diameter.

[0005]

In the fluorescent lamp of the present invention, a phosphor layer is formed on the inner surface, an amalgam is enclosed inside, and the amalgam is mixed in the phosphor layer. Further, in the fluorescent lamp of the present invention, a phosphor layer is formed on the inner surface, an amalgam is enclosed inside, and an amalgam layer is formed on the phosphor layer. Further, the fluorescent lamp device of the present invention, a fluorescent layer is formed on the inner surface, and a fluorescent lamp in which the amalgam is enclosed, a holder for holding this fluorescent lamp, a globe containing the fluorescent lamp and the holder, A lighting circuit that lights the fluorescent lamp and a case that includes the lighting circuit and has a base are provided, and amalgam is mixed in the phosphor layer. Further, the fluorescent lamp device of the present invention, the fluorescent layer is formed on the inner surface, and the amalgam is enclosed in the fluorescent lamp,
A holder that holds this fluorescent lamp, a globe that includes the fluorescent lamp and the holder, a lighting circuit that lights the fluorescent lamp, and a case that includes the lighting circuit and has a base, and the phosphor layer An amalgam layer is formed on the top.

[0006]

With this structure, the luminous flux rising characteristics are improved.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT FIG. 1 shows a 16W type light bulb type fluorescent lamp which is an embodiment of the present invention.

As shown in FIGS. 1 and 2, a 16 W type light bulb type fluorescent lamp according to an embodiment of the present invention has electrodes inside, and mercury 10 and a rare argon gas 11 are enclosed. , A double U-shaped fluorescent lamp 1 in which a phosphor layer 8 is formed on the inner surface and an amalgam 9 made of bismuth-indium is enclosed in one end, a holder 2 for holding the fluorescent lamp 1, a fluorescent lamp 1 and a holder 2. A globe 6 including a lighting circuit 3, a lighting circuit 3 for lighting the fluorescent lamp 1, and
A case 4 including the lighting circuit 3 and having a base 5 is provided. Mercury 10 rather than amalgam 9 in the phosphor layer 8
Amalgam 7 made of, for example, indium, which is easily compatible with, is mixed. With such a configuration, it is possible to obtain a bulb-type fluorescent lamp that has high efficiency, high output, small size, and light weight, and has a significantly improved luminous flux rise after lighting.

The compact fluorescent lamp of the above embodiment (hereinafter referred to as the present invention product A) and the compact fluorescent lamp having an auxiliary amalgam installed near the electrodes of the present invention product A (hereinafter referred to as the present invention product B). , A bulb-shaped fluorescent lamp in which the amalgam 7 is not mixed in the phosphor layer and an auxiliary amalgam is installed in the vicinity of the electrodes of the fluorescent lamp (hereinafter referred to as conventional product A), and the amalgam 7 is not mixed in the phosphor layer 8, Moreover, the luminous flux rising characteristics of the bulb-shaped fluorescent lamp (hereinafter referred to as the conventional product B) in which the auxiliary amalgam is not installed near the electrodes of the fluorescent lamp are measured, and the results are shown in FIG.

In FIG. 3, curve A is the product A of the present invention, curve B is the product B of the present invention, curve C is the conventional product A, and curve D is the conventional product B.
Are shown respectively. In addition, FIG.
Shown as a percentage.

As is apparent from FIG. 3, the products A and B of the present invention.
It was confirmed that the luminous flux rising characteristics were improved in comparison with the conventional products A and B. It was also confirmed that the product A of the present invention has a significantly improved luminous flux rising characteristic as compared with the conventional product A and the conventional product B.

Next, a 16 W type light bulb type fluorescent lamp which is another embodiment of the present invention will be described. As shown in FIG. 4, the bulb-type fluorescent lamp of another embodiment of the present invention has the same structure as the above-mentioned product A of the present invention, but the fluorescent material layer 12 is provided on the inner surface of the fluorescent lamp 1.
Is formed, and the amalgam layer 13 made of, for example, indium, which is more easily compatible with the mercury 10 than the amalgam 9, is formed on the phosphor layer 12.

The compact fluorescent lamp of the other embodiment (hereinafter referred to as the product C of the present invention) and the compact fluorescent lamp having an auxiliary amalgam installed near the electrodes of the product C of the present invention (hereinafter referred to as the product D of the present invention).
3), and the luminous flux rising characteristics of the conventional product A and the conventional product B, respectively, and the results are shown in FIG.
Shown in

In FIG. 3, curve E shows the product C of the present invention, and curve F shows the product D of the present invention. As is clear from FIG. 3, it was confirmed that the product C of the present invention and the product A of the present invention and the product D of the present invention and the product B of the present invention have the same characteristics.

The amalgam 7 mixed in the phosphor layer 8 is
Since the amalgam 9 is more easily compatible with the mercury 10 than the amalgam 9 enclosed in the fluorescent lamp, the mercury 10 is easily adsorbed to the amalgam 7. Further, similarly, the amalgam 7 formed on the phosphor layer 12 is more easily compatible with the mercury 10 than the amalgam 9 enclosed in the fluorescent lamp, and thus the mercury 10 is easily adsorbed on the amalgam 7.

In the products A and B of the present invention, the mercury 10 is adsorbed by the amalgam 7 mixed in the phosphor layer 8 while the light is turned off, and when the light is turned on, the amalgam 7 is heated by the heat due to the collision of thermoelectrons, thereby removing the mercury 10. discharge. At this time, Amalgam 7
Since it is mixed in the phosphor layer 8, the mercury 10 is used in the fluorescent lamp 1.
It will be distributed over the entire area. Therefore, since the mercury 10 diffuses into the fluorescent lamp 1 faster than before, the tube length is long,
Alternatively, even with a fluorescent lamp having a narrow tube diameter, the time required for the diffusion of the mercury 10 can be shortened, and thereby the luminous flux rising characteristics can be greatly improved.

In the products C and D of the present invention, mercury 10 is adsorbed on the amalgam layer 13 formed on the phosphor layer 12,
When turned on, the amalgam 7 is heated by the heat generated by the collision of thermoelectrons, and mercury 10 is emitted. At this time, since the amalgam 7 is formed on the phosphor layer 12, the mercury 10
Will be distributed over the entire fluorescent lamp 1. Therefore, since the mercury 10 diffuses into the fluorescent lamp 1 faster than before, it is possible to reduce the time required for the diffusion of the mercury 10 even in a fluorescent lamp having a long tube length or a narrow tube diameter, thereby improving the luminous flux rising characteristics. Can be greatly improved.

Further, since the heating of the amalgam 7 is carried out by collision of electrons, even if a highly efficient lighting circuit 3 with a small heat loss of the electrodes, for example, a lighting circuit such as an inverter is used, the amount of mercury 10 emitted is reduced. Is eliminated, and the luminous flux rising characteristics can be significantly improved.

The same effect can be obtained when the electrode has an auxiliary amalgam for assisting the starting.

[0020]

As described above, according to the present invention, the time required for the diffusion of mercury can be shortened even with a fluorescent lamp having a long tube length or a narrow tube diameter, and the heating of the amalgam can be performed by the collision of electrons. As a result, even if a highly efficient lighting circuit with less heat loss of the electrodes, such as an inverter, is used, less mercury will be emitted, and the fluorescent lamp and fluorescent lamp with the excellent effect of significantly improving the luminous flux rising characteristics will be obtained. A lighting device can be provided.

[Brief description of drawings]

FIG. 1 is an enlarged cutaway front view of a main part of a compact fluorescent lamp according to an embodiment of the present invention.

FIG. 2 is a partially cutaway front view of the same.

FIG. 3 is a comparison diagram of the luminous flux rising characteristics of the products A, B, C and D of the present invention and the conventional products A and B.

FIG. 4 is an enlarged cutaway front view of a main part of a bulb-type fluorescent lamp according to another embodiment of the present invention.

[Explanation of symbols]

 1 Fluorescent Lamp 7,9 Amalgam 8 Phosphor Layer 10 Mercury 11 Argon Noble Gas 12 Phosphor Layer 13 Amalgam Layer

Claims (8)

[Claims] 1. A fluorescent lamp having a phosphor layer formed on an inner surface thereof, an amalgam enclosed therein, and an amalgam mixed with the phosphor layer. 2. The fluorescent lamp according to claim 1, wherein the amalgam mixed in the phosphor layer is more easily compatible with mercury than the amalgam enclosed in the fluorescent lamp. 3. A fluorescent lamp having a phosphor layer formed on an inner surface thereof, an amalgam enclosed therein, and an amalgam layer formed on the phosphor layer. 4. The fluorescent lamp according to claim 3, wherein the amalgam layer is made of a material that is more compatible with mercury than the amalgam enclosed in the fluorescent lamp. 5. A fluorescent lamp having a phosphor layer formed on the inner surface thereof and amalgam enclosed therein, a holder for holding the fluorescent lamp, a globe containing the fluorescent lamp and the holder, and lighting the fluorescent lamp. A fluorescent lamp device, comprising: a lighting circuit for driving the lighting circuit; and a case including the lighting circuit and having a base, wherein amalgam is mixed in the phosphor layer. 6. The fluorescent lamp apparatus according to claim 5, wherein the amalgam mixed in the phosphor layer is one that is more easily compatible with mercury than the amalgam enclosed in the fluorescent lamp. 7. A fluorescent lamp having a phosphor layer formed on an inner surface thereof and amalgam enclosed therein, a holder for holding the fluorescent lamp, a globe including the fluorescent lamp and the holder, and lighting the fluorescent lamp. A fluorescent lamp device, comprising: a lighting circuit for driving the lighting circuit; and a case including the lighting circuit and having a base, wherein an amalgam layer is formed on the phosphor layer. 8. The fluorescent lamp device according to claim 7, wherein the amalgam layer is made of a material that is more easily compatible with mercury than the amalgam enclosed in the fluorescent lamp.