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lighting equipment

A technology for lighting fixtures and color temperature, which is applied in lighting devices, fixed lighting devices, lighting and heating equipment, etc., and can solve the problems that users are difficult to choose and change

Active Publication Date: 2022-06-28
PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In addition, in lighting fixtures, if the state of the illumination light is changed in a complicated way, it is difficult for the user to select an illumination light with a comfortable brightness, and thus it is difficult for the user to change to a comfortable brightness

Method used

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Experimental program
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Embodiment approach

[0022] First, use figure 1 The schematic structure of the lighting fixture 1 which concerns on embodiment is demonstrated. figure 1 It is a perspective view schematically showing the appearance of the lighting fixture 1 according to the embodiment.

[0023] like figure 1 As shown, the lighting fixture 1 in this embodiment is a ceiling light installed in the ceiling of a building, for example. The lighting fixture 1 irradiates white light as illumination light, for example, but the light color of the illumination light is not limited to the white light.

[0024] The lighting fixture 1 is capable of light adjustment and color adjustment, and has not only a light adjustment function capable of adjusting the brightness (light quantity) of the illumination light, but also a color adjustment function capable of adjusting the light color of the illumination light.

[0025] In the present embodiment, the lighting fixture 1 has a function of changing the light quantity of illuminati...

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PUM

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Abstract

Provided is a lighting fixture capable of changing illumination light in a plurality of brightness states, and allowing a user to easily change the illumination light to a comfortable brightness. A lighting fixture (1) for irradiating illumination light includes: a first light source (10) and a second light source (20) emitting lights having different color temperatures; A circuit unit (30) that controls the light source (20). When the circuit unit (30) receives the control signal as the first control signal, the color temperature of the illumination light is changed in linkage with the change of the brightness of the illumination light. The first changed control mode controls the first light source (10) and the second light source (20), and when the control signal is accepted as the second control signal, the color temperature of the illumination light remains unchanged, And the second control mode of changing the brightness of the illumination light controls the first light source (10) and the second light source (20).

Description

technical field [0001] The present invention relates to lighting fixtures. Background technique [0002] A conventionally known lighting fixture has a function of changing the color temperature of illumination light in accordance with the purpose of use, usage conditions, and the like (so-called color-adjusting function) (for example, refer to Patent Document 1). [0003] A conventional lighting fixture having a color-adjusting function includes, for example, a first light source and a second light source that emit light of mutually different color temperatures, and a circuit unit that controls each of the first light source and the second light source. In such a lighting fixture, the color temperature of the illumination light irradiated by the lighting fixture can be changed by dimming control of each of the first light source and the second light source by the circuit unit. [0004] (Prior Art Literature) [0005] (patent literature) [0006] Patent Document 1 Japanese...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05B45/10H05B45/20H05B47/19H05B47/195
CPCF21S8/00F21V19/001F21V23/045F21Y2115/10H05B45/10H05B45/20
Inventor 杨庆元
Owner PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD