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A lighting device for lighting fresh meat and a lamp including the lighting device

A technology for lighting devices and fresh meat, which is applied to components of lighting devices, lighting devices, optical elements for changing the spectral characteristics of emitted light, etc., and can solve problems such as inability to cause purchase desire and specific light color

Active Publication Date: 2017-08-25
OPPLE LIGHTING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When people evaluate the quality of fresh food, they often no longer trust the fresh food with too bright color, because they are worried about fraud (surface treatment, artificial coloring, etc.), and at the same time, fresh food with too dim color cannot attract people’s attention. desire to buy
The current fresh meat lamps are facing such an embarrassment. Due to their special light color, the fresh meat area is always glowing with "red" light, which is suspicious.

Method used

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  • A lighting device for lighting fresh meat and a lamp including the lighting device
  • A lighting device for lighting fresh meat and a lamp including the lighting device
  • A lighting device for lighting fresh meat and a lamp including the lighting device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0036] In Embodiment 1, a blue LED chip with a peak wavelength of 450±10nm is provided on the illuminating device 101 as the blue light generating part, and a red light phosphor that can convert part of the blue light emitted by the blue light generating part into red light is used as the red light generating part. And the yellow-green phosphor that can convert part of the blue light emitted by the blue light generating part into yellow-green light is used as the yellow-green light generating part. In this embodiment, the blue LED chip not only serves as the blue light generating part, but also serves as the excitation light source for the red light reflecting part and the yellow-green light generating part. Figure 4 It is the relative spectral energy distribution diagram of Embodiment 1. The blue light energy emitted by the blue LED chip forms the first peak in the figure. The luminous peak wavelength is at 459nm, and the FWHM is about 26nm. The red phosphor converts part of...

Embodiment approach 2

[0037] Embodiment 2, the lighting device 101 includes two kinds of LED chips, the first chip is a white light chip, and its relative spectral energy distribution diagram is as follows: Figure 5 As shown, chip 2 is an LED chip that is excited by phosphor powder to generate red light, and its relative spectral energy distribution diagram is shown in Image 6 As shown, both chip 1 and chip 2 can be one piece or several pieces. Both the chip 1 and the chip 2 include a blue semiconductor light source as a blue light generating part. The red light generating part of the lighting device 101 is composed of the red phosphor in the first chip and the red phosphor in the second chip. Since the second chip is an LED chip that emits red light, the red phosphor is the Red light emission plays a major role, so the red light phosphor in chip two adopts broadband phosphor in this embodiment, and its full width at half maximum is greater than 80nm. In some other more preferred embodiments, th...

Embodiment approach 3

[0038] In Embodiment 3, a blue LED chip with a peak wavelength of 450±10nm is provided in the illuminating device 101 as the blue light generating part, and a yellow-green phosphor that can convert part of the blue light emitted by the blue light generating part into yellow-green light is used as the yellow-green light generating part. The red light generating part includes an LED chip that emits ultraviolet light with a peak wavelength within the range of 360±40nm as an excitation light source, and a red phosphor that converts the ultraviolet light emitted by the excitation light source into red light at 600-620nm. Figure 7 It is the relative spectral energy distribution diagram of Embodiment 3, the blue light energy emitted by the blue LED chip forms the first peak in the figure, the luminous peak wavelength is located at 450nm, and the FWHM is about 23nm. The red light excited by the red phosphor, in Figure 7 The second peak is formed in the middle, the peak wavelength of...

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PUM

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Abstract

The present invention provides an illumination device, comprising a blue light generating part outputting a blue light component, a yellow-green light generating part outputting a yellow-green light component, and a red light generating part outputting a red light component; the luminous peak intensity of the red light generating part It is 50-80% of the luminous peak intensity of the blue light generating part; the wavelength distribution of the output light of the yellow-green light generating part is between 500nm and 580nm, and the intensity of any wavelength in this range is greater than that of the red light 30% of the peak luminous intensity of the generating part is less than the peak luminous intensity of the red light generating part. After adopting such a design, a specific light color is formed by combining blue light components, yellow-green light components, and red light components in specific proportions. When such lighting equipment is used to irradiate an object, the vividness of the illuminated object can be ensured without affecting its own natural color.

Description

technical field [0001] The invention relates to an illuminating device and a lamp comprising the illuminating device, in particular to a semiconductor illuminating device for illuminating fresh meat and a lamp comprising the illuminating device. Background technique [0002] At present, the lighting of fresh meat areas in supermarkets is usually realized by red or pink straight tube fluorescent lamps or ordinary warm white light sources. Illuminating fresh meat with ordinary warm white light source will make the surface color of the meat darker overall, the red part of the meat will appear darker, while the white part will be slightly yellowish; The red part of the meat is very bright, while the white part is also reddish. In short, warm white light makes the color of meat less vivid and less natural; pink light makes the color of meat more vivid and less natural. [0003] Today, food safety issues are increasingly becoming the main concern of Chinese people, and people ar...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F21V9/16F21Y115/10
Inventor 娄迪周志贤
Owner OPPLE LIGHTING
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