Luminaire

A lighting device and dimming technology, which is applied in the direction of lighting devices, circuit devices, lamp circuit layout, etc., can solve the problems of unable to meet the lighting time, fast battery consumption, etc.

Inactive Publication Date: 2013-01-02
TOSHIBA LIGHTING & TECH CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, in an emergency, when using the power supply of the battery to light the LED element of the lamp device, there is a problem that if the LED element is turned on with the same brightness as in normal cases, the battery will be consumed quickly. Although it also depends on the capacity of the battery, it still cannot meet the specified lighting time stipulated in an emergency

Method used

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Examples

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Embodiment Construction

[0061] Below, refer to Figure 1 to Figure 3 Next, the first embodiment will be described.

[0062] exist figure 2 Here, 10 is a lighting device, and this lighting device 10 is a built-in lighting fixture such as a down light having an emergency lighting function. The lighting device 10 includes a fixture device 11 and a lamp device 12 , and the lamp device 12 is detachably attached to the fixture device 11 .

[0063] The appliance device 11 includes: an appliance body 15, a lamp socket 16 as a lamp device installation part, an emergency device 17, a check switch (switch) 18, etc., and the lamp socket 16 as a lamp device installation part is arranged on the The appliance body 15 is equipped with a lamp device 12 that can be detachably installed. The emergency device 17 lights up the lamp device 12 in the event of a power outage. The check switch 18 is used to check the emergency device 17. examine.

[0064] The appliance body 15 includes: a reflector 20 , a heat sink 21 ,...

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PUM

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Abstract

According to one embodiment, a luminaire includes a dim lighting circuit, an emergency unit, a dimming-signal input section, and a dimming control circuit. The dim lighting circuit dimly lights a light source at a dimming ratio corresponding to a dimming signal. The emergency unit includes a charging circuit for charging a battery with an external power supply in a normal time and supplies a power supply of the battery to the dim lighting circuit in an emergency. The dimming-signal input section receives the input of the dimming signal from the outside. The dimming control circuit gives the dimming signal input from the dimming-signal input section to the dim lighting circuit in a normal time and gives a dimming signal having a dimming ratio for an emergency to the dim lighting circuit in an emergency.

Description

technical field [0001] Embodiments of the present invention relate to a lighting device having an emergency lighting function. Background technique [0002] Conventionally, there has been a lighting device with an emergency lighting function. This lighting device normally uses an external power source such as a commercial AC power source to turn on the light source. The power source is used to turn on the light source for a time longer than the specified lighting time. [0003] Among such lighting devices with an emergency lighting function, there is a lighting device that can replace a lamp device with respect to an appliance device. The lamp device uses a light emitting diode (Light Emitting Diode, LED) element as a light source. Furthermore, a lighting circuit for lighting the LED element is included. The lighting device includes a battery, a charging circuit, and an emergency lighting circuit. In an emergency, the battery is used as a power source, and the LED elements...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B37/02H05B44/00
CPCH02J9/065H05B33/0845H05B45/10
Inventor 辻俊雄平冈敏行鎌田征彦井上优田野纪贵川越真富山和也
Owner TOSHIBA LIGHTING & TECH CORP
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