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light emitting device

A light-emitting device, a technology for stable light-emitting, applied in lighting devices, electroluminescent light sources, light sources, etc., can solve problems such as reducing the sense of incongruity, and achieve the effect of reducing the sense of incongruity

Active Publication Date: 2020-03-17
PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] When the light-emitting device is used for phototherapy, etc., there is a problem of reducing the sense of discomfort given to the user

Method used

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Examples

Experimental program
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Embodiment 1

[0023] [structure]

[0024] First, the configuration of the phototherapy device according to Example 1 will be described. figure 1 It is an external view showing the phototherapy device according to Example 1. figure 2 It is a block diagram showing the functional configuration of the phototherapy device according to the first embodiment.

[0025] Such as figure 1 As shown, the phototherapy device 10 according to Example 1 is a substantially columnar light emitting device that is erected on a table or the like. That is, the phototherapy device 10 is an example of a light emitting device. The phototherapy device 10 emits blue-white light mixed with blue light and white light. Such light is irradiated to the person to be treated (hereinafter referred to as user) when waking up or during the day. According to this, the user's melatonin secretion is suppressed when waking up or during the day, and improvement of PMS, improvement of depression, and improvement of sleep rhythm ...

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Abstract

A phototherapy device (10) is an example of a light emitting device, and includes a white light source (11w), a blue light source (11b), and a control unit (12). The control unit (12) performs stable light emission control for making the white light source (11w) and the blue light source (11b) emit light at constant luminance, and makes the white light source (11w) and the blue light source (11b) Dim control for dimming separately. The control unit (12) starts dimming the blue light source (11b) before the white light source (11w) in the dimming control, and makes the blue light source (11b) and the white light source (11w) simultaneously or at the same time as the white light source (11w). ) before turning off the light.

Description

technical field [0001] The present invention relates to a light emitting device used for phototherapy and the like. Background technique [0002] Conventionally, light-emitting devices using light-emitting elements such as LEDs have been used for various purposes. For example, Patent Document 1 discloses a dental light irradiator. In addition, it is known that phototherapy using a light-emitting device capable of irradiating blue light is effective for improving PMS (Premenstrual Syndrome), improving depression, improving sleep rhythm, and the like. [0003] (Prior art literature) [0004] (patent documents) [0005] Patent Document 1: Japanese Patent Laid-Open No. 2006-223688 [0006] When the light-emitting device is used for phototherapy or the like, there is a problem of reducing the sense of incongruity given to the user. Contents of the invention [0007] The present invention provides a light-emitting device capable of reducing the sense of incongruity given to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61N5/06H05B44/00
CPCA61N5/0613A61N2005/0658A61N2005/0629H05B45/20H05B47/16Y02B20/40
Inventor 上野早织藤原由利
Owner PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD
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