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An optical device and its application

An optical device and red light technology, applied in the field of far-red light optics, can solve problems such as difficult controllable adjustment of optical power, achieve the effects of reducing packaging costs, simplifying packaging processes, and huge application prospects

Active Publication Date: 2022-02-22
GRIREM ADVANCED MATERIALS CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the main problem of this implementation method is: the optical power of far-red light still needs to be further improved, and the optical power in the 350-680nm band is difficult to achieve controllable adjustment

Method used

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  • An optical device and its application
  • An optical device and its application
  • An optical device and its application

Examples

Experimental program
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Effect test

Embodiment 1

[0070] c. An optical device comprising a blue LED chip with a wavelength of 470nm and a molecular formula of 12.6CaO·4.4Al 2 o 3 5ZnO 0.4MnO 2 0.2Na 2 The far-red luminescent material of O, the molecular formula is (La 0.1 Lu 0.9 ) 2.92 Si 6 N 11 :0.08Ce 3+ The visible light luminescent material; wherein the far-red luminescent material accounts for 80% of the total mass of the total luminescent material, and the D50 particle size of the far-red luminescent material is 31 μm. In this example, the visible light luminescent material and silica gel were uniformly mixed at a mass ratio of 0.4:1, stirred, and defoamed to obtain a visible light fluorescence conversion layer mixture, and the mixture was covered on the surface of the LED chip layer by spraying, and baked It is cured into a visible light fluorescent layer. Then, the far-red light-emitting material and silica gel are mixed and evenly covered on the visible light fluorescence conversion layer according to the ma...

Embodiment 4

[0072] Embodiment 4 An optical device comprising a blue LED chip with a wavelength of 460nm and a molecular formula of 13.8CaO·3.265Al 2 o 3 1.635Ga 2 o 3 · MgO · 5ZnO · 0.2MnO 2 0.06K 2 O 0.04Li 2 The far-red luminescent material of O, the molecular formula is La 2.9 Si 6 N 11 :0.1Ce 3+ The visible light luminescent material; wherein the far-red luminescent material accounts for 60% of the total mass of the total luminescent material, and the D50 particle size of the far-red luminescent material is 24 μm. In this example, the visible light luminescent material and silica gel were uniformly mixed at a mass ratio of 0.4:1, stirred, and degassed to obtain a visible light fluorescence conversion layer mixture, and the mixture was covered on the surface of the LED chip layer by dispensing. Bake it to solidify into a visible light fluorescent layer. Then, the far-red light-emitting material and silica gel are mixed and evenly covered on the visible light fluorescence conv...

Embodiment 7

[0075] An optical device comprising a blue LED chip with a wavelength of 460nm and a molecular formula of 13.99CaO·3.995Al 2 o 3 · Ga 2 o 3 0.5MgO 5.5ZnO 0.01MnO 2 0.005K 2 The far-red luminescent material of O, the molecular formula is Sr 1.9999 Si 5 N 8 :0.0001Eu 2+ The visible light luminescent material; wherein the far-red luminescent material accounts for 80% of the total mass of the total luminescent material, and the D50 particle size of the far-red luminescent material is 26 μm. Mix the far-red luminescent material and silica gel in this embodiment evenly according to the mass ratio of 1.5:1, stir and defoam to obtain the visible light fluorescence conversion layer mixture, and cover the mixture on the surface of the LED chip layer by dispensing. Baking makes it solidify into a visible light fluorescent layer. Then, the visible light luminescent material and silica gel are mixed according to the mass ratio of 0.4:1 and evenly covered on the far-red fluorescenc...

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Abstract

An optical device and its application, the device comprising: a light source and a luminescent material layer, the luminescent material layer contains a far-red luminescent material and a visible light luminescent material, and the far-red luminescent material is Ca 14 al 10 Zn 6 o 35 structure, and the molecular formula is aAO·zZ 2 o 3 · eE 2 o 3 · gGO · hMnO 2 mM 2 O. The device uses the same light source to achieve high-efficiency emission of far-red light and visible light at the same time, which greatly simplifies the packaging process, reduces packaging costs, has the advantages of high luminous efficiency and excellent reliability, and realizes adjustable and controllable spectral components. , can present a soft visual effect, and has great application prospects in security monitoring, environmental light source, full-spectrum health lighting, ultra-high color gamut backlight display and other fields.

Description

technical field [0001] The invention relates to the technical field of far-red light optics, in particular to an optical device including a light source, a far-red light luminescent material and a visible light luminescent material and an application thereof. Background technique [0002] In recent years, the application of far-red light in security monitoring, ultra-high color gamut backlight display, green and healthy lighting, plant lighting, environmental light source and other fields has become the focus of the industry. Among them, far-red light LED has good directivity and low power consumption. And a series of advantages such as small size have become the focus of international research. At present, there are only corresponding far-red light semiconductor chips on the market that can meet the above-mentioned applications. For example, far-red light chips in the 710-730nm and 750nm bands are mainly used in the security field. In particular, in order to perform light ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L33/50C09K11/64C09K11/80C09K11/79C09K11/59C09K11/62C09K11/56
CPCH01L33/502C09K11/643C09K11/7706C09K11/7774C09K11/0883C09K11/7734C09K11/7768
Inventor 刘荣辉高彤宇刘元红陈晓霞马小乐薛原
Owner GRIREM ADVANCED MATERIALS CO LTD
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