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Light-emitting device and illumination device

A light-emitting device and a technology of luminescent materials, which are applied in the direction of lighting devices, components of lighting devices, lighting and heating equipment, etc., can solve problems such as human injury, environmental pollution, and lack of long afterglow characteristics, and achieve high luminous efficiency. Good chromaticity and the effect of improving light utilization efficiency

Inactive Publication Date: 2012-03-14
邱行中
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] (3) Does not have long afterglow characteristics
[0011] (4) Existence of ultraviolet radiation pollution
[0012] A small amount of ultraviolet radiation below 400nm emitted by the HID lamp will not only cause harm to the human body, but also pollute the environment

Method used

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  • Light-emitting device and illumination device
  • Light-emitting device and illumination device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] figure 1 It is a structural diagram of the light-emitting device 7 according to the first embodiment of the present invention. exist figure 1 Among them, the light-emitting device 7 includes an ultra-high pressure mercury lamp 1 as a light source, a short-wave visible light cut filter 2 that reflects light from ultraviolet light to red light emitted by the ultra-high pressure mercury lamp 1 and passes infrared light, and makes the incident ultraviolet light Concave lens 3 that converts the light from light to red light into parallel light, passes through visible light with a wavelength greater than purple light, and makes short-wave purple light cut-off filter 4 that reflects purple light and ultraviolet light, passes purple light and long-wave ultraviolet light, and allows short-wave ultraviolet light A light-reflecting short-wave ultraviolet cut filter 5 , a wavelength conversion layer 52 and a wavelength conversion element 6 . exist figure 1 Among them, IR, R, ...

Embodiment 2

[0066] Figure 5 It is a structural diagram of the light emitting device 7 according to the second embodiment of the present invention. exist Figure 5 Among them, the difference from the structure of Embodiment 1 is that the short-wave violet light cut filter film 212 is used instead of the short-wave visible light cut filter film 21 , and the short-wave violet light cut filter 4 is omitted. The transmittance characteristics of the shortwave violet light cut-off filter 22 are as follows: Figure 6 shown by Figure 6 It can be seen that it can reflect purple light and ultraviolet light well, and pass visible light and infrared light with a wavelength greater than purple light.

[0067] The working process of the light-emitting device 7 is as follows: the light emitted by the ultra-high pressure mercury lamp 1 is irradiated on the short-wave purple light cut-off filter film 212, and the short-wave purple light cut-off filter film 212 allows visible light and infrared light w...

Embodiment 3

[0069] Figure 7 It is a structural diagram of a light emitting device 7 according to Embodiment 3 of the present invention. exist Figure 7 Among them, the structural difference from Embodiment 2 is that the ultra-high pressure mercury lamp 1 is replaced by the metal halide lamp 1A, and the short-wave ultraviolet light cut-off filter film 212 is replaced by the UV-IR cut-off filter film 213 . Figure 14 It is a graph showing the spectral energy distribution of the metal halide lamp 1A in this embodiment. The transmittance characteristics of the ultraviolet and infrared cut-off filter 23 are as follows: Figure 8 shown by Figure 8 It can be seen that it can reflect purple light, ultraviolet light and infrared light well, and allow visible light with a wavelength greater than purple light to pass through.

[0070] The working process of the light-emitting device 7 is as follows: the light emitted by the metal halide lamp 1A is irradiated on the ultraviolet-infrared cut-off...

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PUM

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Abstract

The invention discloses a light-emitting device and an illumination device. The illumination device which has high light-emitting efficiency, good color rendering index and light storage property is obtained through converting purple light and ultraviolet light in the light emitted by a light source effectively. The light-emitting device comprises the light source, an optical thin film element and a wavelength conversion element; the light emitted by the light source is divided into three parts: (1) visible light with the wavelength greater than the purple light; (2) the purple light and ultraviolet A; and (3) ultraviolet C. The light of the first part is transmitted directly outward, and the light of the second part and the third part is respectively illuminated on the corresponding wavelength conversion element, and the light is converted into the visible light and is transmitted outward.

Description

technical field [0001] The invention relates to a light emitting device, in particular to a light emitting device and an illuminating device which use a HID lamp as a light source and have high luminous efficiency, good color rendering and light storage. Background technique [0002] High-intensity discharge (HID) lamps include high-pressure mercury lamps, ultra-high-pressure mercury lamps, metal halide lamps, and xenon lamps. The biggest feature of HID lights is high luminous efficiency, good color rendering, long life, and remarkable energy-saving effect, so they are widely used in industry and people's daily life, such as roads, railways, ports, stations, docks, airports, parking lots , stadiums, factories, mines, warehouses, cinemas, shops, gardens, buildings and other indoor and outdoor lighting fields, and can also be used for automotive lighting, projectors, etc. In addition to being used as lighting, ultraviolet high-pressure mercury lamps and ultraviolet metal hali...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21S2/00F21V9/06F21V5/08
Inventor 邱行中尹绍刚黎涤萍
Owner 邱行中
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