CN204029865U

CN204029865U - A kind of LED light source

Info

Publication number: CN204029865U
Application number: CN201420325914.0U
Authority: CN
Inventors: 庄文荣; 陈兴保
Original assignee: SHANGHAI OPPEL LIGHTING CO Ltd
Current assignee: Ayura Terua Limited by Share Ltd
Priority date: 2014-06-19
Filing date: 2014-06-19
Publication date: 2014-12-17
Anticipated expiration: 2024-06-19

Abstract

The utility model relates to a kind of LED light source, belong to LED preparing technical field, LED light source described in the utility model comprises LED chip, for the composition such as transparency carrier of packaged LED, substrate is provided with the groove preventing blue leakage, arranged by groove and not only reduce light leak rate, and entirety improves the light emission rate of LED light source.

Description

A kind of LED light source

Technical field

the utility model relates to a kind of LED light source, belongs to LED light source technical field.

Background technology

the advantages such as lamp is high with its luminous efficiency, light source power consumption is few, long service life, security reliability are strong, environmental, energy-conservation, make it more and more favor by consumers in general.On the other hand, under the background that Present Global energy starved worry raises once again, energy savings is the important problem that we will face future, at lighting field, the application of LED luminous product is just attract the sight of common people, and some developed countries expand fierce technology contest around the development of LED in the world.The U.S. is investment 500,000,000 dollars enforcement " National Semiconductor illumination plan " from 2000, and European Union also announces to start similar " rainbow plan " in July, 2000.Under the support that the Department of Science and Technology of China plans in " 863 ", the plan of development semiconductor lighting is proposed first in June, 2003.LED, as a kind of novel green light source product, can be widely used in the fields such as various instruction, display, decoration, backlight, general lighting and urban landscape.

lamp and Semiconductor light-emitting diode lamp are a kind of semiconducting solid luminescent devices.It utilizes solid semiconductor LED chip as luminescent material, releases superfluous energy in the semiconductors and cause photo emissions, directly send red, yellow, blue, green, blue or green, orange, purple, white light by charge carrier generation compound.But its brightness of semiconductor issued light excited without fluorescent material is very limited, so we need to apply fluorescent glue on LED chip, LED chip issued light under work illuminating state is ejected to greatest extent, if LED chip issued light under work illuminating state fails to be excited by fluorescent material completely and emits, this phenomenon is called as light leak, the blue light of LED chip will leak, described blue light is not the light of our daily described blueness, and refer to the blue light of wavelength between 435 nanometer to 440 nanometers, the blue light of this wave band has very high energies, crystalline lens can be penetrated to go directly retina.Blue light illumination retina can produce free radical, and these free radicals can cause retinal pigment epithelium to become feeble and die, and epithelial decline can cause photaesthesia cell lack nutrient thus cause vision impairment, and these damages are irreversible.So we do one's utmost to need to find the LED light source that a kind of energy self prevents blue leakage in LED flow of research.

Summary of the invention

the utility model provides a kind of LED light source, effectively can prevent the leakage of LED chip blue light under the operating state lighted.Described LED light source comprises LED chip, transparency carrier etc. for packaging LED chips, transparency carrier is provided with the groove preventing blue leakage.

a kind of LED light source described in the utility model, all excited by fluorescent material for making every LEDs chip issued light, complete in blue light leakage, the groove of blue leakage that prevents on described transparency carrier is arranged at the surrounding of the surrounding of each LED chip or the unit of a few LEDs chip composition or is arranged at the surrounding of whole LED chip group or the both sides of whole LED chip group.

a kind of LED light source described in the utility model, groove on transparency carrier is not only arranged at the side pasting LED chip, because substrate of the present invention is transparency carrier, LED chip also can penetrate from substrate back through substrate, so our transparency carrier upper and lower surface of the present invention is equipped with groove lighting the light launched under operating state.

a kind of LED light source described in the utility model, described transparency carrier upper and lower surface is equipped with groove, do not reveal for making blue light, groove location on upper and lower surface staggers, and the degree of depth of upper and lower surface groove and equal the thickness of transparency carrier, or the degree of depth of transparency carrier upper and lower surface groove and be greater than the thickness of transparency carrier.

a kind of LED light source described in the utility model, described transparency carrier we can be the substrate of various transparent material, preferred glass transparency carrier.

a kind of LED light source described in the utility model, the side groove of described transparency carrier corresponding chip position at chip side and the transparency carrier back side can be one or two or more.

a kind of LED light source described in the utility model, fluorescent glue for encapsulating LED chip of the present invention is not only coated on LED chip, stick the near zone of LED chip and transparency carrier correspondence pastes LED chip place and near zone, and coating extends to groove, and be provided with fluorescent glue in groove.

Accompanying drawing explanation

accompanying drawing of the present utility model is to further illustrate the utility model, but not the restriction to invention scope of the present utility model.

fig. 1, the utility model LED light source schematic diagram.

fig. 2, the utility model LED light source schematic diagram.

fig. 3, the utility model LED light source schematic diagram.

fig. 4, the utility model LED light source generalized section.

fig. 5, the utility model LED light source generalized section.

illustrate: 1 for transparency carrier, and 2 is LED chip, 3 is the groove at the transparency carrier back side, and 4 is the groove in transparency carrier front, and 5 is the electrode on transparency carrier.

Embodiment

embodiment of the present utility model is to further illustrate the utility model, but not the restriction to invention scope of the present utility model.

Embodiment

get LED chip and the transparency carrier for packaging LED chips, around fixing each LED chip the surrounding of the unit of a few LEDs chip composition or be arranged at the surrounding of whole LED chip group or the both sides of whole LED chip group transparency carrier on be provided with the groove preventing blue leakage, groove is arranged at transparency carrier upper and lower surface, and the groove location of upper and lower surface staggers mutually, the degree of depth of upper and lower surface groove and the thickness of>=transparency carrier.LED chip on the transparent substrate after die bond, lead-in wire its fluorescent glue to be not only coated on chip and to extend to the groove of transparency carrier, and be coated with fluorescent glue in groove, the back side of the transparency carrier at the corresponding chip place of pasting also is coated with fluorescent glue, and also extend to back side groove, in groove, be also provided with fluorescent glue.

Claims

1. a kind of LED light source, it is characterized in that described LED light source comprises LED chip, transparency carrier for packaging LED chips, transparency carrier is provided with the groove preventing blue leakage, the fluorescent glue coating for encapsulated LED light source extends to groove, and is provided with fluorescent glue in groove.

2. lED light source according to claim 1, is characterized in that the groove of blue leakage that prevents on described transparency carrier is arranged at the surrounding of the surrounding of each LED chip or the unit of a few LEDs chip composition or is arranged at the surrounding of whole LED chip group or the both sides of whole LED chip group.

3. lED light source according to claim 1, is characterized in that described transparency carrier upper and lower surface is equipped with groove.

4. lED light source according to claim 3, it is characterized in that described transparency carrier upper and lower surface is equipped with groove, the groove location on upper and lower surface staggers, and the thickness of the degree of depth of upper and lower surface groove and>=transparency carrier.

5. lED light source according to any one of claim 1-4, is characterized in that described transparency carrier is glass transparent substrate.

6. lED light source according to any one of claim 1-4, it is characterized in that the groove on described transparency carrier side of corresponding chip position at chip side and the transparency carrier back side be one or two or more.