CN105068367B - Light-emitting device, projection display equipment and light fixture - Google Patents
Light-emitting device, projection display equipment and light fixture Download PDFInfo
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- CN105068367B CN105068367B CN201510469497.6A CN201510469497A CN105068367B CN 105068367 B CN105068367 B CN 105068367B CN 201510469497 A CN201510469497 A CN 201510469497A CN 105068367 B CN105068367 B CN 105068367B
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- 230000003287 optical effect Effects 0.000 claims abstract description 33
- 238000000429 assembly Methods 0.000 claims abstract description 4
- 230000000712 assembly Effects 0.000 claims abstract description 4
- 239000000428 dust Substances 0.000 abstract description 13
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000007789 sealing Methods 0.000 description 3
- 239000000084 colloidal system Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 241000023320 Luma <angiosperm> Species 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000005441 aurora Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- OSWPMRLSEDHDFF-UHFFFAOYSA-N methyl salicylate Chemical compound COC(=O)C1=CC=CC=C1O OSWPMRLSEDHDFF-UHFFFAOYSA-N 0.000 description 1
- RONZAEMNMFQXRA-UHFFFAOYSA-N mirtazapine Chemical compound C1C2=CC=CN=C2N2CCN(C)CC2C2=CC=CC=C21 RONZAEMNMFQXRA-UHFFFAOYSA-N 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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- Semiconductor Lasers (AREA)
- Projection Apparatus (AREA)
Abstract
A kind of light-emitting device and projection display equipment and light fixture, including lasing light emitter and optical system are proposed, optical system is made up of at least one optical element, for the laser for guiding lasing light emitter to send；Also include the first shell, first shell is assembled by least two first casing assemblies, for lasing light emitter and optical system to be enclosed in inside it；First outer surface of outer cover includes the first radiating area；Also include second housing, the second housing forms by least two second housing parts assemblings, for inside it, and the first shell to be fixedly connected with second housing by the first shell seal；Wherein, second housing inner surface includes the second radiating area corresponding with the first radiating zone position, and the first radiating area and the second radiating area are thermally coupled.In the light-emitting device, laser optical path is closed using two layers of shell, the probability that extraneous dust enters light path is not only considerably reduced on the order of magnitude, and it is simple and easy to apply.First radiating area and the second radiating area then can be by heat derives.
Description
Technical field
The present invention relates to light source field, more particularly to light-emitting device and the light fixture and Projection Display using the light-emitting device
Device.
Background technology
At present, the fluorescent material rotating disk that laser excitation is rotated produces the fluorescence of timesharing, and this method is by relatively more extensive
Applied in Projection Display industry.This scheme, can because using all solid state luminescent material, therefore service life is very high in theory
To reach tens thousand of hours.But actual situation is, the service life of the light source of this method manufacture is only thousands of hours, really
Long-life light source product scheme does not occur all the time.
The content of the invention
In order to solve the problems, such as the service life of above-mentioned LASER Light Source, the present invention proposes a kind of light-emitting device, including lasing light emitter
And optical system, optical system is made up of at least one optical element, for the laser for guiding lasing light emitter to send；Also include first
Shell, first shell is assembled by least two first casing assemblies, for lasing light emitter and optical system to be enclosed in into it
It is internal；First outer surface of outer cover includes the first radiating area；Also include second housing, the second housing is outside at least two second
Shell component is assembled, for by the first shell seal, inside it, and the first shell to be fixedly connected with second housing；Wherein,
Second housing inner surface includes the second radiating area corresponding with the first radiating zone position, and the first radiating area and the second radiating area heat are even
Connect.
The present invention also proposes that a kind of projection display equipment, including above-mentioned light-emitting device are used as light source.
The present invention also proposes that a kind of light fixture, including above-mentioned light-emitting device are used as light source.
In the light-emitting device of the present invention, laser optical path is closed using two layers of shell, it is not only big on the order of magnitude
The extraneous dust of amplitude reduction enters the probability of light path, and simple and easy to apply.First radiating area and the second radiating area then can be by
Heat derives.
Brief description of the drawings
Fig. 1 is the structural representation of the light-emitting device of first embodiment of the invention.
Embodiment
As described in the background art, the service life of existing LASER Light Source all only thousands of hours.Inventor is to current
In the market carried out substantial amounts of analysis using projector's product of the representative manufacturer of this light source, and partial list is as follows
（Data end on June 30th, 2015）：
| Manufacturer | Model | Life of product |
| Casio | XJ-A141 | 4500 |
| Casio | XJ-A300WS | 4500 |
| Casio | XJ-M250 | 4500 |
| Bright base | LX60ST | 3000 |
| Letter is closed | Aurora | 4000 |
| It is happy depending on U.S. | SML-PF500 | 4000 |
| AVANZA | HD7 | 6000 |
| Ou Silang | Light source P1 | 3500 |
| Ou Silang | Light source P2 | 3000 |
| LG | Hecto laser televisions | 5500 |
| Instrument electricity electronics | INESA laser televisions | 3500 |
Although target service life reaches 20,000 hours or even longer in the specification of many products, can from measured data
To see on service life there are a large amount of false propagandas.Certain this market-oriented publicity measures need not be begged for herein
By.From upper table it can be seen that, there is presently no the theoretical service life that a laser product can reach tens thousand of hours.
In fact, the service life in order to extend LASER Light Source product, industrial circle has spent substantial amounts of time, manpower thing
Power is studied, and also achieves some achievements in research.Research is found, on laser optical path, due to the active optical member of laser
Part surface easily deposits dust, and the continuous accumulation of dust, which causes brightness, constantly to be reduced, and finally drops to the one of initial luma values
When half, think that service life ends according to standard.In order to prevent dust accretions, it is thus proposed that light source is carried out " sealing " to prevent
Extraneous dust enters light source internal, and has made shell by light source " sealing " inside it, tests the life-span and has been lifted,
But lifted not notable.Also someone is according to proposing to carry out light source " airtight " encapsulation as a same reason, but test the life-span still
Lift thousands of hours.
The continuous experiment of one-year age is up to by inventor, this problem has answer finally.Due to light source internal light
Road is that heating --- heat may be sent by Wavelength converter, it is also possible to absorb light production by optical element or light source shell
It is raw --- the temperature of light source internal 20 to 40 degree higher than environment temperature.Temperature difference generates pressure differential so that light source internal and outer
There is the power of air flow in portion.And in actual production, either " seal " still " airtight ", for example connect using rubber ring filling
Seam etc., because shell seam is many and in irregular shape, it is difficult to accomplish to be sealed to the degree for preventing air flow completely；So
As the faint flowing dust of light source internal and extraneous air still can be progressed into light path, so as to cause light-source brightness to decline
Subtract.
In order to lift the sealing of light-emitting device, while ensureing productibility, the present invention proposes a kind of light-emitting device, and it is tied
Structure schematic diagram is as shown in Figure 1.The light-emitting device includes lasing light emitter 101, Wavelength converter 114 and optical system, optical system
Including optical element 111,112 and 113.The laser 141 that wherein lasing light emitter 101 is sent sequentially passes through optical filter 111 and focused on saturating
Wavelength converter 114 is incident in after microscope group 112 and 113, incident laser 141 is converted to Stimulated Light by Wavelength converter
142, the Stimulated Light 142 is reflected and outgoing after the collection of focus lens group 112 and 113 by optical filter 111.The light-emitting device is also
Including the first shell, first shell is assembled by the first casing assembly 121,122 and 123, wherein 123 be on the first shell
Light exit.The mutually assembled space for forming a closing of each first casing assembly, by lasing light emitter 101, Wavelength converter 114
It is enclosed in optical system inside it.
Light-emitting device also includes second housing, and the second housing is assembled by two second housing components 151 and 152,
For by the first shell seal, inside it, and the first shell to be fixedly connected with second housing；Wherein 152 be on second housing
Light exit.Wherein, the first outer surface of outer cover includes the first radiating area 121a, and it is located at the backboard of lasing light emitter, is lasing light emitter
Radiating area, for for laser source heat-dissipating.Second housing inner surface includes the corresponding with the first radiating area 121a positions second radiating
Area, the first radiating area and the second radiating area are thermally coupled.
Using the first shell and second housing, enclosed two layers equivalent to for laser optical path, this is than one layer tight of closing
Shell is to protect laser optical path simple, while effect is also more preferable., must with environment inside second housing due to the presence of the temperature difference
So there is the dust in micro air exchange, environment can also enter inside second housing therewith；Assuming that dust enters outside second
The probability of shell is a ten thousandth.As a same reason, inside second housing with the first enclosure also due to the presence of the temperature difference and deposit
In air exchange, then also assume that the probability that dust enters the first enclosure inside second housing is a ten thousandth.This
Sample, dust is only just 1/100000000th from the environment into the probability into laser optical path, is in the reduction of the order of magnitude into probability.
And if it is desired to the degree for being sealed to 1/100000000th using only crust is highly difficult, such as with colloid by all shell groups
The assembled seam of part is shut, and this yield in production is not high, and examines difficult.
By inventor it is demonstrated experimentally that the service life of the light-emitting device of the present invention reaches tens thousand of hours,
In the present embodiment, it is fixedly connected between the first shell and second housing and the first radiating area and the second radiating area
Thermally coupled, the heat of such lasing light emitter can just be transmitted to the second radiating area by the first radiating area, and be dispersed into extraneous walking guide.
Certain first radiating area may not be the radiating area of lasing light emitter, in a word the heat of light-emitting device must via the first radiating area and
Second radiating area is exported.
In the present embodiment, including positioned at the Wavelength converter of the first enclosure, for receiving lasing light emitter transmitting
Laser simultaneously launches Stimulated Light.It can not also include using optical system in Wavelength converter, light-emitting device in actual applications
The laser that sends of guiding lasing light emitter and form emergent light.It is appreciated that the lasing light emitter, optical system and wavelength in the present embodiment turn
The setting of changing device can be designed, you can so that using other forms and design, the present invention is without limitation, as long as full
Foot " optical system is made up of at least one optical element, for the laser for guiding lasing light emitter to send ".
In the present embodiment, the first shell is made up of three the first casing assemblies, and the first shell is at least by two in practice
First casing assembly is constituted, and in order to assembly and lasing light emitter and optical system is enclosed in inside it.
In the present embodiment, it is preferred that the first outer surface of outer cover also includes the 3rd radiating area 121b, the 3rd radiating area is
Wavelength converter radiating area, for being radiated for Wavelength converter.Corresponding, second housing inner surface also includes and the
Corresponding 4th radiating area of three radiating zone positions, the 3rd radiating area and the 4th radiating area are thermally coupled.So Wavelength converter is produced
Raw heat can also be dispersed into outside by the 3rd radiating area and the 4th radiating area.As a same reason, on laser optical path compared with
The part of heat can be in the first outer surface of outer cover radiating area corresponding with second housing inner surface setting by heat derives.Again
For example, it is also possible to using the whole bottom surface of the first shell as one big radiating area, it is corresponding with the inner surface of second housing
Region is thermally coupled, so can effectively by the heat derives on the first shell, while be also beneficial to two shells assembling and
It is fixed.
It is preferred that, the first shell and second housing are integrally formed, and can so effectively reduce both cost, and lifting
Between heat conductivility.
In the present embodiment, it is preferred that also including drive device 115, for driving Wavelength converter 114 at the uniform velocity to turn
It is dynamic, it can so cause the diverse location for being incident in Wavelength converter 114 of the timesharing of laser 141, so that the generation of timesharing is not
With the light of color.Drive device 115 includes drives line 115a, and drives line 115a is needed through on the first shell and second housing
The aperture advanced for is to facilitate external driving.Aperture on first shell and second housing can be after drives line 115a be passed through
Sealed with colloid.
The present invention also proposes second embodiment.From unlike first embodiment, in the present embodiment, being wrapped on second housing
Air channel opening is included, and light-emitting device also includes air-blast device and screen pack, the air-blast device is closely sealed to be blocked air channel opening and leads to
Air channel opening is crossed to air blast inside second housing, the air inlet that screen pack is then arranged at air-blast device blows into second housing to filter
Internal air.Positive air pressure can be so formed in second housing（Slightly higher air pressure）, on the one hand with the first enclosure
Positive air pressure balances each other to reduce the flowing of the gas between the first shell and second housing, on the other hand can make inside second housing
Air flow external environment in prevent the dust of external environment from entering.Screen pack is then used to prevent the dust of external environment from leading to
Air-blast device is crossed to flow into inside second housing.
The present invention also proposes that a kind of projection display equipment, including above-mentioned light-emitting device are used as light source.
The present invention also proposes that a kind of light fixture, including above-mentioned light-emitting device are used as light source.
Embodiments of the invention are the foregoing is only, are not intended to limit the scope of the invention, it is every to utilize this hair
Equivalent structure or equivalent flow conversion that bright specification and accompanying drawing content are made, or directly or indirectly it is used in other related skills
Art field, is included within the scope of the present invention.
Claims (10)
1. a kind of light-emitting device, it is characterised in that：
Including lasing light emitter and optical system, optical system is made up of at least one optical element, is sent for guiding lasing light emitter
Laser；The optical element includes focus lens group or optical filter；
Also include the first shell, first shell is assembled by least two first casing assemblies, for by lasing light emitter and light
System
It is enclosed in inside it；First outer surface of outer cover includes the first radiating area；
Also include second housing, the second housing is formed by least two second housing parts assemblings, for the first shell to be sealed
Close at it
Inside, and the first shell is fixedly connected with second housing；Wherein, second housing inner surface includes the second radiating area, first
Radiating
Area and the second radiating area are thermally coupled.
2. the light-emitting device according to claim 1, it is characterised in that first radiating area and second radiating area
Position
Correspondence.
3. the light-emitting device according to claim 1, it is characterised in that first radiating area is the radiating area of lasing light emitter,
With
In for laser source heat-dissipating.
4. the light-emitting device according to claim 1, it is characterised in that also turn including the wavelength positioned at the first enclosure
Change the outfit
Put, for receiving the laser of lasing light emitter transmitting and launching Stimulated Light.
5. the light-emitting device according to claim 4, it is characterised in that first outer surface of outer cover includes the 3rd radiating
Area,
3rd radiating area is Wavelength converter radiating area, for being radiated for Wavelength converter；Table in the second housing
Also wrap in face
The 4th radiating area is included, the 3rd radiating area and the 4th radiating area are thermally coupled.
6. the light-emitting device according to claim 4, it is characterised in that also including drive device, for driving wavelength convert
Dress
Put uniform rotation.
7. the light-emitting device according to claim 1, it is characterised in that include air channel opening, and hair on the second housing
Light
Device also includes air-blast device and screen pack, the air-blast device it is closely sealed block air channel opening and by air channel opening to the
Two shells
Internal air blast, screen pack is then arranged at the air inlet of air-blast device to filter the air blown into inside second housing.
8. the light-emitting device according to claim 1, it is characterised in that first shell and second housing are integrally formed.
9. a kind of projection display equipment, it is characterised in that including the luminous dress according to any one of claim 1 to 8
Put work
For light source.
10. a kind of light fixture, it is characterised in that be used as light including the light-emitting device according to any one of claim 1 to 8
Source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510469497.6A CN105068367B (en) | 2015-08-04 | 2015-08-04 | Light-emitting device, projection display equipment and light fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510469497.6A CN105068367B (en) | 2015-08-04 | 2015-08-04 | Light-emitting device, projection display equipment and light fixture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105068367A CN105068367A (en) | 2015-11-18 |
| CN105068367B true CN105068367B (en) | 2017-08-29 |
Family
ID=54497767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510469497.6A Active CN105068367B (en) | 2015-08-04 | 2015-08-04 | Light-emitting device, projection display equipment and light fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105068367B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106791751A (en) * | 2017-02-17 | 2017-05-31 | 海信集团有限公司 | Projection arrangement |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100495201C (en) * | 2005-11-24 | 2009-06-03 | 台达电子工业股份有限公司 | Lamp assembly of projecting apparatus |
| EP2363055A1 (en) * | 2010-03-01 | 2011-09-07 | Electrolux Home Products Corporation N.V. | Projector and household appliance comprising such a projector |
| CN102073204B (en) * | 2010-12-02 | 2012-03-14 | 苏州佳世达光电有限公司 | Projection device |
| CN102540656B (en) * | 2011-11-15 | 2014-12-31 | 深圳市光峰光电技术有限公司 | Light-emitting device and projecting system |
| CN102720954B (en) * | 2012-01-14 | 2014-08-27 | 深圳市光峰光电技术有限公司 | Light emitting device and light emitting system |
| CN108646508B (en) * | 2012-12-20 | 2021-06-08 | 深圳光峰科技股份有限公司 | Light emitting device and related projection system |
| CN103645596A (en) * | 2013-12-18 | 2014-03-19 | 吴震 | Light emitting device and projection displaying system |
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2015
- 2015-08-04 CN CN201510469497.6A patent/CN105068367B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN105068367A (en) | 2015-11-18 |
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Effective date of registration: 20191224 Address after: 200941 room 1265, building 2, No. 57, Tangnan street, Yuepu Town, Baoshan District, Shanghai Patentee after: Shanghai Anming Technology Center (limited partnership) Address before: 201203 No. 49, Lane 12, blue wave road, Shanghai, Pudong New Area 801 Patentee before: Yang Yi |
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Effective date of registration: 20201202 Address after: Room b59, building 031, 1076 Jungong Road, Yangpu District, Shanghai, 200433 Patentee after: SHANGHAI BLUE LAKE LIGHTING TECH. Co.,Ltd. Address before: 200941 room 1265, building 2, No. 57, Tangnan street, Yuepu Town, Baoshan District, Shanghai Patentee before: Shanghai Anming Technology Center (L.P.) |