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Lighting device and lighting system

A lighting device and light source technology, which is applied in the field of lighting systems, can solve problems such as luminous color switching malfunctions, and achieve the effect of suppressing malfunctions

Active Publication Date: 2022-03-15
PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, in the lighting fixture described in Patent Document 1, when the voltage supplied to the lighting fixture fluctuates due to a short power failure or the like, similar to the above-mentioned case where the wall switch is operated, the light emission may be affected. The problem of wrong work when switching colors

Method used

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Embodiment approach 1

[0020] The lighting device and lighting system according to Embodiment 1 will be described.

[0021] [1-1. Configuration of lighting device and lighting system]

[0022] The configuration of the lighting device and the lighting system according to the present embodiment will be described with reference to the drawings.

[0023] figure 1 It is a circuit diagram showing an example of the circuit configuration of the lighting device 20 and the lighting system 10 according to this embodiment. and, in figure 1 A power supply 14 for supplying electric power to the lighting system 10 and a power switch 15 for turning on or off the lighting system 10 are also shown in the figure. The power supply 14 is, for example, a system power supply such as a commercial power supply whose output voltage is an alternating current of 100V.

[0024] The power switch 15 is a switch provided on a wire that supplies power from the power source 14 to the lighting system 10 . When the power switch 1...

Embodiment approach 2

[0075] A lighting device and lighting system according to Embodiment 2 will be described. The lighting device and the lighting system according to this embodiment have a configuration that suppresses uneven operation. Hereinafter, this embodiment will be described focusing on differences from Embodiment 1. FIG. First, the configuration of the lighting device and the lighting system according to the present embodiment will be described with reference to the drawings. Figure 4 It is a circuit diagram showing an example of the circuit configuration of the lighting device 120 and the lighting system 110 according to this embodiment.

[0076] Such as Figure 4 As shown, the lighting device 120 and the lighting system 110 according to the present embodiment are different from the lighting device 20 and the lighting system 10 according to the first embodiment in the configuration of the first circuit 150 . Hereinafter, the configuration of the first circuit 150 according to the p...

Embodiment approach 3

[0085] A lighting device and lighting system according to Embodiment 3 will be described. The lighting device and the lighting system according to the present embodiment have a structure capable of reliably performing a reset operation of the control circuit, that is, a structure capable of reliably reducing the control voltage. Hereinafter, the present embodiment will be described focusing on differences from the second embodiment. First, the configuration of the lighting device and the lighting system according to the present embodiment will be described with reference to the drawings. Figure 6 It is a circuit diagram showing an example of the circuit configuration of the lighting device 220 and the lighting system 210 according to this embodiment.

[0086] Such as Figure 6 As shown, the lighting device 220 and the lighting system 210 according to the present embodiment are different from the lighting device 120 and the lighting system 110 according to the second embodim...

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Abstract

To provide a lighting device capable of switching a lighting state by operating a wall switch and suppressing malfunctions. The lighting device (20) is provided with input power, and provides output power to the first light source (11) and the second light source (12). (11) and the ratio of the output power of the second light source (12) are switched; the first circuit (50) is input with the input voltage corresponding to the input power, and outputs the control voltage corresponding to the input voltage with a delay relative to the input voltage The control circuit (80) is input with the control voltage, and controls the switching circuit (70) according to the value of the control voltage when the input power decreases, and the time constant of the first circuit (50) is lower than the input voltage when the input voltage decreases. The case of voltage rise is large.

Description

technical field [0001] The present invention relates to a lighting device and a lighting system including the lighting device. Background technique [0002] In conventional lighting fixtures that can be turned on and off with a wall switch, it is known that the lighting state of the lighting fixture is changed by performing a predetermined operation on the wall switch. For example, the technology disclosed in Patent Document 1 is to switch the wall switch from the on state (that is, the conduction state) to the off state (that is, the , off state), and then switch to the on state again within a predetermined time to switch the LED to be lit. In this way, in the lighting fixture disclosed in Patent Document 1, one of the white LED and the yellow LED can be selectively turned on. In other words, in the lighting fixture disclosed in Patent Document 1, the light emission color of the lighting fixture can be switched, that is, color toning can be performed by operating a wall s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05B45/30H05B45/3725
CPCH05B45/00Y02B20/30Y02B20/40
Inventor 李世春佐伯浩司
Owner PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD
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