JPH04118557U - lighting fixtures - Google Patents

Abstract

(57) [Summary] [Purpose] To shorten the time required to turn on a discharge lamp so that it is not affected greatly by differences in environmental temperature conditions such as summer and winter, and to maintain sufficient brightness as a headlight after being turned on. To shorten the time it takes to obtain a product. [Structure] A discharge lamp 18a is enclosed inside an incandescent lamp 8a together with a filament 18b for the incandescent lamp 8a.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention relates to lighting equipment for automobiles and other uses that uses discharge lamps as a light source. Ru.

0002

[Conventional technology]

FIG. 3 shows, for example, a conventional automobile headlamp shown in Japanese Patent Application Laid-Open No. 2-124339. 1 is a sectional view showing a lamp, in which 1 is a first lamp, 1a is a discharge lamp, and 2 is a second lamp. Lighting equipment, 2a is an incandescent lamp, 21a is a filament for passing beam, 21b is a running beam. 3 is a lighting detection section, 4 is a lighting circuit based on the output of the lighting detection section 3. 5 and a control unit that controls the incandescent lamp 2a, 5 is a lighting circuit, and 6 is an output power of the lighting circuit 5. A step-up transformer that steps up the voltage; 7 is a stabilizer.

0003 Next, the operation will be explained. First, the control unit 4 switches the changeover switch SW to the contact s, Determine on which side of m the input is made. Changeover switch SW is passing each other When the contact s on the beam side is turned on, the lighting circuit 5 is started and at the same time , current is also supplied to the passing beam filament 21a of the incandescent lamp 2a, and this The filament 21a for misaligned beams is turned on. At this time, discharge lamp 1a is not lit. However, due to the luminous flux from the passing beam filament 21a of the second lamp 2, Therefore, visibility is secured at the same time as the changeover switch SW is turned on.

0004 On the other hand, although there are differences due to differences in temperature in summer and winter, The discharge lamp 1a lights up. This lighting is detected by the lighting detection section 3, and its output is controlled. The information is transmitted to the control unit 4, but generally the brightness of discharge lamps is low immediately after they start lighting. , it does not have sufficient brightness as a headlight, and after it is detected that it is turned on, it is set to a constant level using a timer etc. After measuring the passage of time, the passing beam filament 21a is turned off.

[0005] On the other hand, when the changeover switch SW is switched to the contact m on the traveling beam side, , the control section 4 lights up the traveling beam filament 21b. In this case, Since the running beam filament 21b is an incandescent lamp, visibility is ensured at the same time as it lights up. become what is done.

[0006]

[Problem that the idea aims to solve]

Since the conventional automobile headlamp is configured as described above, the lighting of the discharge lamp 1a It takes time to turn on the light, and the time it takes for the light to turn on also depends on the environmental temperature in summer and winter. The time required to obtain sufficient brightness as a headlight after lighting depends largely on differences in lighting conditions. There were issues such as inconsistent results.

[0007] The invention of claim 1 was made to solve the above problems. , the time required to turn on a discharge lamp greatly depends on the difference in environmental temperature conditions such as summer and winter. It has been shortened so that it will not be affected by the light, and in addition, after it is turned on, it can provide sufficient brightness as a headlight. The purpose of the present invention is to obtain a lighting fixture that can shorten the time required for lighting.

[0008] Moreover, the invention of claim 2 can be efficiently carried out by the traveling beam and the passing beam. To obtain a lighting fixture that heats a discharge lamp to speed up the start-up of the discharge lamp. aimed to.

[0009]

[Means to solve the problem]

The lighting fixture according to the invention of claim 1 has a filter for the incandescent lamp inside the incandescent lamp. A discharge lamp is enclosed together with a lament.

0010 Further, the lighting device according to the invention of claim 2 is switched to turn on inside the incandescent lamp. With possible traveling beam filaments and passing beam filaments It contains a discharge lamp.

[0011]

[Effect]

The incandescent lamp filament in this invention is a hot wire that is used when the discharge lamp starts lighting. This accelerates heating and speeds up the start-up of the discharge lamp.

0012 In addition, incandescent lamp filaments and passing beam filaments in this invention By lighting the discharge lamp at the same time, these heating rays can heat the discharge lamp more efficiently. , to speed up the lighting of this discharge lamp.

[0013]

【Example】

An embodiment of this invention will be described below with reference to the drawings. In Figure 1, 3 indicates lighting inspection. The output part 4 is a control for controlling the lighting circuit 5 and the incandescent lamp 8a based on the output of the lighting detection part 3. 5 is a lighting circuit, 6 is a step-up transformer that boosts the output voltage of the lighting circuit 5, and 7 is a lighting circuit. ballast, 8 is a lamp for an incandescent lamp with a built-in discharge lamp, 8a is the above-mentioned incandescent lamp with a built-in discharge lamp, 18a is a discharge lamp, and 18b is a filament.

[0014] Next, the operation will be explained. First, if the switch SW is turned on, At the same time as starting the lighting circuit 5, current is also supplied to the filament 18b. The filament 18b is turned on. At this time, the discharge lamp 18a is not lit, but the discharge lamp 18a is not lit. Due to the luminous flux from the filament 18b, visibility is secured at the same time as the switch SW is turned on. It becomes something that can be done.

[0015] On the other hand, since a large amount of heat rays are generated at the same time as the filament 18b is turned on, this heat The discharge lamp 18a is heated to evaporate the enclosed metal halide and allow discharge. make it easier At this time, a discharge lamp 18 is placed inside the incandescent lamp 8a and close to the filament 8b. Since a is enclosed, it is heated efficiently. Therefore, in summer and winter, etc. There is almost no difference in temperature conditions due to the difference in temperature, and the discharge lamp 18a is turned on after a predetermined short time. do. This lighting is detected by the lighting detection section 3, and this output is sent to the control section 4. communicated. In this way, after the discharge lamp 18a is sufficiently lit, the predetermined sufficient brightness is set. maintain. In addition, after measuring a certain period of time using a timer or the like, the filament 18b Turning off the light is the same as in the conventional device.

[0016] FIG. 2 shows another embodiment of an incandescent lamp 8A with a built-in discharge lamp, and 18a is a discharge lamp. Electric light, 21a is the filament for the passing beam, 21b is the filament for the running beam. These are housed within the incandescent lamp 8a. According to this, discharge lamp 1 8a is a filament 21a for a passing beam and a filament 21b for a traveling beam. Because it is surrounded by the passing beam filament 21a and When the beam filaments 21b light up at the same time, these filaments 21 The discharge lamp 18a can be heated more efficiently by the heat rays from a and 21b. can. As a result, the discharge lamp 18a can be lit in a short time.

[0017] In addition, in the above embodiment, when the incandescent lamps 8 and 8A are used as headlights of a car, Although we have explained how to use this method, it goes without saying that it can also be used for lighting for other purposes. stomach.

[0018]

[Effect of the idea]

As described above, according to the invention of claim 1, a flame for the incandescent lamp is provided inside the incandescent lamp. The structure is such that the discharge lamp is enclosed together with the filament, so the filament cannot be lit. The discharge lamp can be heated by the heat rays generated at the same time as the luminous flux that secures visibility, and This has the effect of making it possible to start discharging in a short time.

[0019] Further, according to the invention of claim 2, there is also a running device that can be switched on and turned on inside an incandescent lamp. Discharge lamps with beam filaments and passing beam filaments Since it is configured to be sealed, the discharge lamp can be heated more efficiently. As a result, the effect is that the discharge can be started in a shorter time. Ru.

[Brief explanation of drawings]

FIG. 1 is a sectional view showing an illumination lamp according to an embodiment of the invention of claim 1. FIG.

FIG. 2 is a cross-sectional view showing a lamp for lighting equipment according to an embodiment of the invention of claim 2;

FIG. 3 is a sectional view showing a conventional automobile headlamp.

[Explanation of symbols]

8a Incandescent light 18a Discharge lamp 18b filament 21a Filament for passing beam 21b Filament for traveling beam

──────────────────────────────────────────────── ─── Continued from the front page (51) Int.Cl. ⁵ Identification code Internal reference number FI Technical display location F21M 3/22 A 7913-3K L 7913-3K

Claims (2)

[Scope of utility model registration request] 1. An illumination lamp comprising an incandescent lamp and a discharge lamp sealed together with a filament for the incandescent lamp. 2. An illumination lamp in which a discharge lamp is enclosed in an incandescent lamp together with a traveling beam filament and a passing beam filament that can be switched on and off.