CN105068367A - Light-emitting device, projection display device and lamp - Google Patents
Light-emitting device, projection display device and lamp Download PDFInfo
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- CN105068367A CN105068367A CN201510469497.6A CN201510469497A CN105068367A CN 105068367 A CN105068367 A CN 105068367A CN 201510469497 A CN201510469497 A CN 201510469497A CN 105068367 A CN105068367 A CN 105068367A
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- 230000003287 optical effect Effects 0.000 claims abstract description 32
- 238000000429 assembly Methods 0.000 claims description 6
- 230000000712 assembly Effects 0.000 claims description 6
- 230000005855 radiation Effects 0.000 claims description 4
- 238000007664 blowing Methods 0.000 claims description 2
- 239000000428 dust Substances 0.000 abstract description 13
- 238000001816 cooling Methods 0.000 abstract 7
- 238000007789 sealing Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 239000000084 colloidal system Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 241000023320 Luma <angiosperm> Species 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000005441 aurora Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003086 colorant Substances 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
- 238000001914 filtration Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000013011 mating 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
- 239000000843 powder Substances 0.000 description 1
- 238000004445 quantitative analysis Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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- Semiconductor Lasers (AREA)
- Projection Apparatus (AREA)
Abstract
The invention proposes a light-emitting device, a projection display device and a lamp. The light-emitting device comprises a laser source and an optical system and also comprises a first shell and a second shell, wherein the optical system comprises at least one optical component and is used for guiding the laser source to give out laser; the first shell is formed by splicing at least two first shell components and used for closing the laser source and the optical system in the first shell; the outer surface of the first shell comprises a first cooling region; the second shell is formed by splicing at least two second components and used for closing the first shell in the second shell, and the first shell and the second shell are fixedly connected; and the inner surface of the second shell comprises a second cooling region opposite to the first cooling region, and the first cooling region and the second cooling region are in hot connection. In the light-emitting device, two layers of shells are used for closing a laser optical path, the probability of outside dust entering the optical path is substantially reduced on the order of magnitude, and also the light-emitting device is simple and practicable. The first cooling region and the second cooling region can be used for conducting heat out.
Description
Technical field
The present invention relates to light source field, particularly relate to light fixture and the projection display equipment of light-emitting device and this light-emitting device of use.
Background technology
At present, the fluorescent powder rotating disk that laser excitation is rotated produces the fluorescence of timesharing, and this method has been compared to be widely used in Projection Display industry.This scheme due to use all solid state luminescent material therefore in theory serviceable life very high, can tens thousand of hours be reached.But the situation of reality is, the serviceable life of the light source of this method manufacture is only thousands of hours, and real long-life light source product scheme does not occur all the time.
Summary of the invention
In order to solve the problem in serviceable life of above-mentioned LASER Light Source, the present invention proposes a kind of light-emitting device, comprises lasing light emitter and optical system, and optical system is made up of at least one optical element, the laser sent for guiding lasing light emitter; Also comprise the first shell, this first shell is assembled by least two the first casing assemblies, for lasing light emitter and optical system being closed therein; This first outer surface of outer cover comprises the first radiating area; Also comprise second housing, this second housing is formed by least two second housing parts assemblings, and for by the first shell seal therein, and the first shell is fixedly connected with second housing; Wherein, second housing inside surface comprises second radiating area corresponding with the first position, radiating area, the first radiating area and the second radiating area hot tie-in.
The present invention also proposes a kind of projection display equipment, comprises above-mentioned light-emitting device as light source.
The present invention also proposes a kind of light fixture, comprises above-mentioned light-emitting device as light source.
In light-emitting device of the present invention, use two-layer shell to be closed by laser optical path, on the order of magnitude, not only considerably reduce the probability that extraneous dust enters light path, and simple.Heat then can be derived by the first radiating area and the second radiating area.
Accompanying drawing explanation
Fig. 1 is the structural representation of the light-emitting device of first embodiment of the invention.
Embodiment
As described in the background art, all only thousands of hours serviceable life of existing LASER Light Source.The projector product of inventor to the representative manufacturer using this light source in the market carries out excessive quantitative analysis, and part is listed 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 |
| Benq | LX60ST | 3000 |
| Letter closes | Aurora | 4000 |
| Depending on U.S. happy | SML-PF500 | 4000 |
| AVANZA | HD7 | 6000 |
| Ou Silang | Light source P1 | 3500 |
| Ou Silang | Light source P2 | 3000 |
| LG | Hecto laser television | 5500 |
| Instrument electricity electronics | INESA laser television | 3500 |
Although in the specification of a lot of product target to reach serviceable life 20,000 hours even longer, the situation about there is a large amount of false propaganda serviceable life can be seen from measured data.The publicity measures of certain this marketization do not need to discuss at this.Can see also not having a laser product can reach the theoretical service life of tens thousand of hours at present from upper table.
In fact, in order to extend the serviceable life of LASER Light Source product, industrial community has spent a large amount of time, manpower and materials are studied, and also achieved some achievements in research.Research finds, on laser optical path, because the active optical component surface of laser easily deposits dust, the continuous accumulation of dust causes brightness and constantly reduces, and finally drops to a half of initial luma values, thinks that serviceable life ends according to standard.In order to prevent dust accretions, someone proposes to carry out " sealing " to light source and enters light source internal to prevent extraneous dust, and has made shell by light source " sealing " therein, tests the life-span to promote to some extent, but lifting is not remarkable.Also there is people according to proposing as a same reason to carry out " airtight " encapsulation to light source, but test the life-span and still only rise to thousands of hours.
Reach the continuous experiment of one-year age through inventor, this problem has had answer finally.Because light source internal light path is that heating---heat may be sent by Wavelength converter, also may absorb light by optical element or light source shell and produce---temperature 20 to 40 degree higher than environment temperature of light source internal.Temperature difference creates pressure differential, makes light source internal and the outside power being free air-flow dynamic.And in actual production, no matter be " sealing " or " airtight ", such as use rubber ring to fill seam etc., because shell seam is a lot of and out-of-shape, be difficult to accomplish to be sealed to the degree stoping air flowing completely; Like this along with the faint flowing dust of light source internal and extraneous air still can progress in light path, thus light-source brightness is caused to decay.
In order to promote the sealing of light-emitting device, ensure productibility, the present invention proposes a kind of light-emitting device simultaneously, and its structural representation as shown in Figure 1.This light-emitting device comprises lasing light emitter 101, Wavelength converter 114 and optical system, and optical system comprises optical element 111,112 and 113.Wherein the laser 141 that sends of lasing light emitter 101 is incident in Wavelength converter 114 after mating plate 111 and focus lens group 112 and 113 successively after filtration, the laser 141 of incidence is converted to Stimulated Light 142 by Wavelength converter, and this Stimulated Light 142 is reflected and outgoing by optical filter 111 after focus lens group 112 and 113 is collected.This light-emitting device also comprises the first shell, and this first shell is by the first casing assembly 121,122 and 123 assembled, and wherein 123 is the light exit on the first shell.The space that the mutual assembled formation one of each first casing assembly is closed, closes lasing light emitter 101, Wavelength converter 114 and optical system therein.
Light-emitting device also comprises second housing, and this second housing is assembled by two second housing assemblies 151 and 152, and for by the first shell seal therein, and the first shell is fixedly connected with second housing; Wherein 152 is the light exit on second housing.Wherein, the first outer surface of outer cover comprises the first radiating area 121a, and it is positioned at the backboard place of lasing light emitter, is the radiating area of lasing light emitter, for being lasing light emitter heat radiation.Second housing inside surface comprises second radiating area corresponding with the first 121a position, radiating area, the first radiating area and the second radiating area hot tie-in.
Utilize the first shell and second housing, be equivalent to for laser optical path encloses two-layer, this is than tight closed crust to protect laser optical path simple, and effect also wants better simultaneously.Due to the existence of the temperature difference, second housing is inner certainly exists micro-air exchange with environment, and the dust in environment also can enter second housing inside thereupon; Suppose that probability that dust enters second housing is ten thousand/.As a same reason, second housing is inner also can exist air exchange due to the existence of the temperature difference with the first enclosure, so also suppose that dust enters into the first enclosure probability from second housing inside is ten thousand/.Like this, the probability that dust enters into laser optical path from environment is just only 1/100000000th, enters the reduction that probability is the order of magnitude.And if think that the degree only using crust to be sealed to 1/100000000th is very difficult, such as shut by the assembled seam of colloid by all casing assemblies, this production on yield not high, and inspection difficulty.
Test proof through inventor, the serviceable life of light-emitting device of the present invention reaches tens thousand of hours,
In the present embodiment, be fixedly connected with between the first shell and second housing and the first radiating area and the second radiating area hot tie-in, the heat of such lasing light emitter just can be transmitted to the second radiating area by the first radiating area, and is dispersed into the external world and leads away.Certain first radiating area may not be the radiating area of lasing light emitter, and the heat of light-emitting device must be derived via the first radiating area and the second radiating area in a word.
In the present embodiment, comprise the Wavelength converter being positioned at the first enclosure, for receiving the laser of lasing light emitter transmitting and launching Stimulated Light.Also can not comprise Wavelength converter in actual applications, in light-emitting device, use optical system guide the laser that sends of lasing light emitter and form emergent light.Be appreciated that, the setting of the lasing light emitter in the present embodiment, optical system and Wavelength converter can design, namely other form and design can be adopted, the present invention does not limit this, as long as meet " optical system is made up of at least one optical element, the laser sent for guiding lasing light emitter ".
In the present embodiment, the first shell is made up of three the first casing assemblies, and in reality, the first shell is at least made up of two the first casing assemblies, so that assembled and lasing light emitter and optical system closed therein.
In the present embodiment, preferably, the first outer surface of outer cover also comprises the 3rd radiating area 121b, and the 3rd radiating area is Wavelength converter radiating area, for being Wavelength converter heat radiation.Corresponding with it, second housing inside surface also comprises four radiating area corresponding with the 3rd position, radiating area, the 3rd radiating area and the 4th radiating area hot tie-in.The heat that such Wavelength converter produces also can be dispersed into outside by the 3rd radiating area and the 4th radiating area.As a same reason, corresponding radiating area can be arranged at the first outer surface of outer cover and second housing inside surface for part hotter on laser optical path heat is derived.Again such as, can also using the whole bottom surface of the first shell as a large radiating area, by the corresponding region hot tie-in of the inside surface of itself and second housing, effectively the heat on the first shell can be derived like this, also be conducive to the assembling of two shells and fixing simultaneously.
Preferably, the first shell and second housing one-body molded, can cost be effectively reduced like this, and promote heat conductivility between the two.
In the present embodiment, preferably, also comprising drive unit 115, for driving Wavelength converter 114 uniform rotation, the diverse location being incident in Wavelength converter 114 of laser 141 timesharing can be made like this, thus the light of the generation different colours of timesharing.Drive unit 115 comprises drive wire 115a, and this drive wire 115a needs through the aperture that the first shell and second housing retain in advance to facilitate external driving.Aperture on first shell and second housing can seal through rear colloid at drive wire 115a.
The present invention also proposes the second embodiment.With the first embodiment unlike, in the present embodiment, second housing comprises air channel opening, and light-emitting device also comprises air-blast device and screen pack, what this air-blast device was closely sealed block air channel opening and by air channel opening to the inner air blast of second housing, screen pack is then arranged at the air inlet of air-blast device to filter the air blowing into second housing inside.Positive air pressure (slightly high air pressure) can be formed like this in second housing, the positive air pressure of one side and the first enclosure balances each other the gas reduced between the first shell and second housing and flows, and can make in the air flow external environment of second housing inside to stop the dust of external environment to enter on the other hand.Screen pack is then inner for stoping the dust of external environment to flow into second housing by air-blast device.
The present invention also proposes a kind of projection display equipment, comprises above-mentioned light-emitting device as light source.
The present invention also proposes a kind of light fixture, comprises above-mentioned light-emitting device as light source.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize instructions of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (9)
1. a light-emitting device, is characterized in that:
Comprise lasing light emitter and optical system, optical system is made up of at least one optical element, the laser sent for guiding lasing light emitter;
Also comprise the first shell, this first shell is assembled by least two the first casing assemblies, for lasing light emitter and optical system being closed therein; This first outer surface of outer cover comprises the first radiating area;
Also comprise second housing, this second housing is formed by least two second housing parts assemblings, and for by the first shell seal therein, and the first shell is fixedly connected with second housing; Wherein, second housing inside surface comprises second radiating area corresponding with the first position, radiating area, the first radiating area and the second radiating area hot tie-in.
2. light-emitting device according to claim 1, is characterized in that, described first radiating area is the radiating area of lasing light emitter, for being lasing light emitter heat radiation.
3. light-emitting device according to claim 1, is characterized in that, also comprises the Wavelength converter being positioned at the first enclosure, for receiving the laser of lasing light emitter transmitting and launching Stimulated Light.
4. light-emitting device according to claim 3, is characterized in that, described first outer surface of outer cover comprises the 3rd radiating area, and the 3rd radiating area is Wavelength converter radiating area, for being Wavelength converter heat radiation; Described second housing inside surface also comprises four radiating area corresponding with the 3rd position, radiating area, the 3rd radiating area and the 4th radiating area hot tie-in.
5. light-emitting device according to claim 3, is characterized in that, also comprises drive unit, for driving Wavelength converter uniform rotation.
6. light-emitting device according to claim 1, it is characterized in that, described second housing comprises air channel opening, and light-emitting device also comprises air-blast device and screen pack, what this air-blast device was closely sealed block air channel opening and by air channel opening to the inner air blast of second housing, screen pack is then arranged at the air inlet of air-blast device to filter the air blowing into second housing inside.
7. light-emitting device according to claim 1, is characterized in that, described first shell and second housing one-body molded.
8. a projection display equipment, is characterized in that, comprises light-emitting device according to any one of claim 1 to 7 as light source.
9. a light fixture, is characterized in that, comprises light-emitting device according to any one of claim 1 to 7 as light 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 |
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| 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 |
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| Publication Number | Publication Date |
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| CN105068367A true CN105068367A (en) | 2015-11-18 |
| CN105068367B CN105068367B (en) | 2017-08-29 |
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| CN201510469497.6A Active CN105068367B (en) | 2015-08-04 | 2015-08-04 | Light-emitting device, projection display equipment and light fixture |
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Cited By (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 |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1971406A (en) * | 2005-11-24 | 2007-05-30 | 台达电子工业股份有限公司 | Lamp assembly of projecting apparatus |
| CN102073204A (en) * | 2010-12-02 | 2011-05-25 | 苏州佳世达光电有限公司 | Projection device |
| CN102540656A (en) * | 2011-11-15 | 2012-07-04 | 深圳市光峰光电技术有限公司 | Light-emitting device and projecting system |
| CN102720954A (en) * | 2012-01-14 | 2012-10-10 | 深圳市光峰光电技术有限公司 | Light emitting device and light emitting system |
| CN102791176A (en) * | 2010-03-01 | 2012-11-21 | 伊莱克斯家用产品股份有限公司 | Projector and household appliance comprising such a projector |
| CN103645596A (en) * | 2013-12-18 | 2014-03-19 | 吴震 | Light emitting device and projection displaying system |
| CN103885274A (en) * | 2012-12-20 | 2014-06-25 | 深圳市光峰光电技术有限公司 | Light emitting device and related projection system |
-
2015
- 2015-08-04 CN CN201510469497.6A patent/CN105068367B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1971406A (en) * | 2005-11-24 | 2007-05-30 | 台达电子工业股份有限公司 | Lamp assembly of projecting apparatus |
| CN102791176A (en) * | 2010-03-01 | 2012-11-21 | 伊莱克斯家用产品股份有限公司 | Projector and household appliance comprising such a projector |
| CN102073204A (en) * | 2010-12-02 | 2011-05-25 | 苏州佳世达光电有限公司 | Projection device |
| CN102540656A (en) * | 2011-11-15 | 2012-07-04 | 深圳市光峰光电技术有限公司 | Light-emitting device and projecting system |
| CN102720954A (en) * | 2012-01-14 | 2012-10-10 | 深圳市光峰光电技术有限公司 | Light emitting device and light emitting system |
| CN103885274A (en) * | 2012-12-20 | 2014-06-25 | 深圳市光峰光电技术有限公司 | Light emitting device and related projection system |
| CN103645596A (en) * | 2013-12-18 | 2014-03-19 | 吴震 | Light emitting device and projection displaying system |
Cited By (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 |
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| CN105068367B (en) | 2017-08-29 |
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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.) |