CN205003433U - Illuminator , projection display equipment and lamps and lanterns - Google Patents
Illuminator , projection display equipment and lamps and lanterns Download PDFInfo
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- CN205003433U CN205003433U CN201520655789.4U CN201520655789U CN205003433U CN 205003433 U CN205003433 U CN 205003433U CN 201520655789 U CN201520655789 U CN 201520655789U CN 205003433 U CN205003433 U CN 205003433U
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Abstract
A illuminator and projection display equipment and lamps and lanterns is proposed, including laser source and optical system, still including first shell, this first shell is assembled by at least two first shell subassemblies and is formed for seal laser source and optical system inside it, still include wavelength conversion carousel for receive the laser that jets out from the laser exit port of first shell, and with its at least converting into of part receive laser. Still include the second shell, this second shell is assembled by at least two second shell subassemblies and is formed for seal first shell and wavelength conversion carousel inside it, wherein, second shell internal surface includes the second radiating area that corresponds with first radiating area position, first radiating area and the hot link of second radiating area. Laser source and optical system have passed through sealing of twice on first shell and second shell, and for once sealing, the dust passes and seals the probability that enters into laser beam for twice and will hang down several orders of magnitude.
Description
Technical field
The utility model relates to light source field, particularly relates 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 utility model proposes a kind of light-emitting device, comprising 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 shell comprises laser emitting mouth, for guiding laser emitting to the first enclosure; This first outer surface of outer cover also comprises the first radiating area.Also comprising wavelength convert rotating disk, for receiving the laser penetrated from the laser emitting mouth of the first shell, and it at least part of being converted to Stimulated Light.Also comprise second housing, this second housing is formed by least two second housing parts assemblings, for the first shell and wavelength convert rotating disk being closed therein; 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 utility model also proposes a kind of projection display equipment, comprises above-mentioned light-emitting device as light source.
The utility model also proposes a kind of light fixture, comprises above-mentioned light-emitting device as light source.
In light-emitting device of the present utility model, lasing light emitter and optical system have passed through closing of the first shell and second housing twice, and relative to once closing, dust closes through twice the probability entering into laser optical path will low several order of magnitude.Simultaneously the first radiating area and the second radiating area hot tie-in, can ensure the heat conduction of lasing light emitter and light path generation to conduct through second housing to second housing.
Accompanying drawing explanation
Fig. 1 is the structural representation of the first embodiment of light-emitting device of the present utility model;
Fig. 2 is the structural representation of another embodiment of light-emitting device of the present utility model;
Fig. 3 A is the structural representation of another embodiment of light-emitting device of the present utility model;
Fig. 3 B is the front elevation of Fig. 3 A embodiment medium wavelength conversion rotating disk;
Fig. 4 A is the structural representation of another embodiment of light-emitting device of the present utility model;
Fig. 4 B is the front elevation of Fig. 4 A embodiment medium wavelength conversion rotating disk;
Fig. 5 is the structural representation of another embodiment of light-emitting device of the present utility model.
Embodiment
As described in the background art, all only thousands of hours serviceable life of existing LASER Light Source.Although on market a lot of product specification index on 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.
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, ensureing productibility simultaneously, the utility model proposes a kind of light-emitting device, its structural representation as shown in Figure 1.This light-emitting device comprises lasing light emitter 101 and optical system, and optical system is made up of at least one optical element, the laser 141 sent for guiding lasing light emitter 101.Specifically optical system comprises light-dividing device 111, lens 112 and lens 113 in the present embodiment.Light-emitting device also comprises the first shell 121, and this first shell 121 is assembled by least two the first casing assemblies, for lasing light emitter 101 and optical system being closed therein.First shell 121 is assembled mainly for the needs of actual assembled by least two the first casing assemblies.This first shell 121 comprises laser emitting mouth 122, for guiding laser emitting to the first enclosure.In the present embodiment, the laser 141 that lasing light emitter 101 sends is successively after transmission light-dividing device 111, lens 112 and lens 113, and shine the first shell 121 from laser emitting mouth 122 outside, wherein the effect of lens 112 and 113 is the outgoing of being converged by laser 141.
Light-emitting device also comprises wavelength convert rotating disk 114, for receiving the laser 141 penetrated from the laser emitting mouth 122 of the first shell 121, and it at least part of is converted to Stimulated Light 142.In the present embodiment, wavelength convert rotating disk is reflective, namely wavelength convert rotating disk comprises reflection chassis and is attached to the material for transformation of wave length layer on reflection chassis, such laser 141 is incident and excite from wavelength conversion layer side, and the Stimulated Light of generation can be subject to reflecting the effect on the chassis outgoing reverse along the direction of laser incidence.This part Stimulated Light can transmission lens 113 and lens 112 successively, and the device 111 that is split reflect after from light-emitting window 123 outgoing of the first shell 121.Concerning Stimulated Light 142, lens 113 and lens 112 play to be collected and the effect collimated, and light-dividing device 111 then plays the effect being separated laser 141 and Stimulated Light 142.Light-emitting window 123 is parts of the first shell 121, and it can play the effect of closed lasing light emitter and optical system, and such as light-emitting window is exactly a transparent glass sheet.
In the present embodiment, light-emitting device also comprises drive unit 115, for driving wavelength convert dial rotation.Like this, each point on wavelength convert rotating disk can periodically be excited instead of be in the state of being excited all the time, excites sent heat to compare dispersion, thus avoids the thermal quenching effect of material for transformation of wave length.On the other hand, wavelength convert rotating disk can also be distributed with multiple district, there is not different wavelength conversion characteristics same district; Like this along with drive unit 115 drives wavelength convert dial rotation, Stimulated Light 142 presents different light characteristics, and this has special application in Projection Display.
First shell 121 outside surface also comprises the first radiating area 121a.Light-emitting device also comprises second housing 151, and this second housing 151 is formed by least two second housing parts assemblings, for the first shell 121 and wavelength convert rotating disk being closed therein.Second housing 151 is formed mainly for the needs of actual assembled by least two second housing parts assemblings.Wherein, second housing 151 inside surface comprises second radiating area corresponding with the first 121a position, radiating area, the first radiating area 121a and the second radiating area hot tie-in.
In the present embodiment, the first radiating area 121a is the radiating area of lasing light emitter 101, for dispelling the heat for lasing light emitter 101.Certain first radiating area can be also other element radiating, or is the first shell heat radiation itself, as long as the first radiating area and the second radiating area hot tie-in, just can ensure heat conduction to second housing conducts through second housing.
In the present embodiment, second housing also comprising light-emitting window 152, shining second housing outside for guiding the light of light-emitting window 123 outgoing from the first shell.Light-emitting window 152 is parts of second housing, and it can play closed effect, and such as light-emitting window 152 is exactly a transparent glass sheet.
In the present embodiment, lasing light emitter and optical system have passed through closing of the first shell and second housing twice, relative to once closing, dust closes through twice the probability entering into laser optical path will low several order of magnitude, significantly can promote the serviceable life of light-emitting device like this.Experiment proves that such light-emitting device life-span reaches 30000 hours.Simultaneously the first radiating area and the second radiating area hot tie-in, can ensure the heat conduction of lasing light emitter 101 and light path generation to conduct through second housing to second housing.
In the present embodiment, drive unit 115 comprises drive wire 115a, and lasing light emitter 101 also may comprise drive wire (not shown in FIG.), and these lines need to pass second housing 151.Now can punch on second housing 151 makes these lines pass, and then is sealed in hole with glue or rubber plug.
The structure of another embodiment of light-emitting device of the present utility model as shown in Figure 2.Are transmission-types with the embodiment shown in Fig. 1 unlike, this light-emitting device medium wavelength conversion rotating disk 214, namely Stimulated Light 242 is the incident direction outgoing in the same way along exciting light 241.Specifically, laser 241 is incident in wavelength convert rotating disk 214 from the laser emitting mouth outgoing of the first shell after lens 212 and 213 converge, Stimulated Light 242 do not return the inner and receipts optical lens 216 that is through in second housing of the first shell 221 collect after from light-emitting window 252 outgoing second housing 251.Embodiment shown in the present embodiment with Fig. 1 has identical beneficial effect, just different on optical texture.
In the embodiment shown in fig. 1, wavelength convert rotating disk 114 also can the evolution of heat.Because wavelength convert rotating disk rotates, by the heat transfer directly contacted, its heat cannot be derived.When laser power is not very large, wavelength convert rotating disk can normally work; But when laser power continues to increase to meet application demand, the temperature of wavelength convert rotating disk may continue to rise, and does not now have suitable radiating mode to be not all right.In order to solve the heat dissipation problem of wavelength convert rotating disk, the utility model proposes another embodiment of light-emitting device, its structural representation as shown in Figure 3A.
With the embodiment shown in Fig. 1 unlike, in the present embodiment, wavelength convert rotating disk 314 comprises the first fin 314a, for producing air-flow 361 when rotary work.In the present embodiment, as shown in Figure 3 B, this first fin is the fins group of the centripetal trend along the circumferential direction arranged to the front elevation of the first fin 314a on wavelength convert rotating disk 314 as seen; When wavelength convert turntable rotation, the air of center of turntable can be thrown away along centrifugal direction forms air-flow 361.Obviously, air-flow 361 can take away the heat on wavelength convert rotating disk, and is diffused on the inner space of whole second housing 351 and the housing of second housing 351, so just effectively reduces the temperature of wavelength convert rotating disk.
Be more preferably, in the present embodiment, the inside surface of second housing 351 comprises the second fin 353 in the region that air-flow 361 flows through, for by the heat conduction on air-flow to second housing.Specifically, air-flow 361 in the process flowing through the second fin 353, can fully He the second fin surface contact thus high efficiencyly transfer heat to the second fin, and then pass to second housing housing.When this air-flow is inhaled into wavelength convert center of turntable due to negative pressure (air rotating medium wavelength conversion center of turntable is thrown out of rear center's part and forms negative pressure) again time, its heat carried has passed to the second fin and second housing, thus temperature reduces, the heat radiation of wavelength convert rotating disk can be continued as.
Be appreciated that the second fin also can be small surface undulation, as long as the region surface that second housing flows through at air-flow expands to some extent, just can strengthen the effect of heat interchange, thus strengthen the heat radiation to wavelength convert rotating disk.In the present embodiment, second housing not only serves the effect of closed first shell and wavelength convert rotating disk, also serves the effect into the heat radiation of wavelength convert rotating disk.In order to strengthen radiating effect, can carry out the design of multiple first fin and the second fin, also can guide the flowing of air-flow 361 by arranging specific air channel, this all belongs to protection domain of the present utility model.
The structural representation of another embodiment of light-emitting device of the present utility model as shown in Figure 4 A.With the embodiment shown in Fig. 3 A unlike, in the present embodiment, the first shell 421 also comprises laser entrance port 424, gets back to the first enclosure for receiving from the residue laser of wavelength convert rotating disk outgoing.Specifically, in the present embodiment, the laser emitting mouth 422 of the first shell of light-emitting device is relative with laser entrance port 424, and a part for wavelength convert rotating disk is positioned between the two.With the wavelength convert rotating disk shown in Fig. 3 B unlike, the wavelength convert rotating disk 414 in the present embodiment also comprises a transmissive segments 414b, this transmissive segments does not have fin 414a.Specifically transmissive segments 414b can be reflection chassis on through breach.When transmissive segments 414b turns between laser emitting mouth 422 and laser entrance port 424, the first enclosure can be got back to through transmissive segments 414b through laser entrance port 424 from the laser 443 of laser emitting mouth 422 outgoing, and be collected lens 416 and collect.When the other parts outside transmissive segments 414b on wavelength convert rotating disk turn between laser emitting mouth 422 and laser entrance port 424, laser 441 is incident in wavelength conversion layer thus excites and produces Stimulated Light 442.In the present embodiment, the optical system of the first shell 421 inside also comprises two catoptrons 417 and a Multiplexing apparatus 418, for the light path of laser 443 and Stimulated Light 442 being combined into a branch of and outgoing, so just can obtain the emergent light of laser and Stimulated Light timesharing generation, this light has important use in Projection Display.
In the present embodiment, add the light path of fraction of laser light transmission peak wavelength conversion rotating disk relative to the embodiment shown in Fig. 3 A, thus the timesharing achieving laser and Stimulated Light exports.Meanwhile, the optical element of optical system, all within the first shell seal, therefore has identical long-life beneficial effect with previous embodiment.
Embodiment shown in Fig. 5 is the distortion of Fig. 4 A illustrated embodiment.With Fig. 4 A illustrated embodiment unlike, the light-emitting window on the first shell 521 is lens, and it can play and change emergent light photodistributed effect, and can design according to actual needs.These light-emitting window lens inherently can play the effect of closed lasing light emitter and optical system.Be that lens 513 and 516 inherently serve the effect of laser emitting mouth and laser entrance port respectively with another difference of Fig. 4 A illustrated embodiment, namely serve the effect of closed first enclosure element, become a part for the first shell.Can simplify the design of structural member like this, be a kind of ratio more preferably scheme.Be with the 3rd difference of Fig. 4 A illustrated embodiment, porosint 554 is comprised in the second housing 551 of the present embodiment, for attract dust, effectively can reduce the quantity of the dust suspended in air in second housing like this, thus reduction dust enters into the probability in the first enclosure light path, promotes the life-span further.Porosint 554 is fixed on the internal partial wall of second housing 551 in the present embodiment, and this most simply arranges.Certainly can understand, porosint can be applied to the first enclosure too, or porosint is applied to the first shell simultaneously and second housing is inner, and action principle is identical with beneficial effect.Porosint 554 can be metal polyporous material, such as copper particle sintered porosint, can be also other porosint, not limit herein.
The change design that the present embodiment makes relative to the embodiment shown in Fig. 4 A, can be applied to other embodiment equally, will not enumerate explanation herein.
To sum up the explanation of several embodiment is appreciated that the first casing assembly for assembled first shell, and for the second housing assembly of assembled second housing, it may be structural member, also may be optical element, may be even lasing light emitter itself, can sealing effect be played in a word.For the optical element for closing, even can understand like this, the surface of its outside is a part (i.e. casing assembly) for shell, and its surface in inside is a part for optical system.And if use lasing light emitter itself is as the first casing assembly, as a same reason, its surface towards outside is interpreted as a part for the first shell, and is interpreted as by the lasing light emitter of the first shell seal towards the part of the Emission Lasers of inside.
The utility model also proposes a kind of projection display equipment, comprises above-mentioned light-emitting device as light source.
The utility model also proposes a kind of light fixture, comprises above-mentioned light-emitting device as light source.
The foregoing is only embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every utilize the utility model instructions 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 utility model.
Claims (10)
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 shell comprises laser emitting mouth, for guiding laser emitting to the first enclosure; This first outer surface of outer cover also comprises the first radiating area;
Also comprising wavelength convert rotating disk, for receiving the laser penetrated from the laser emitting mouth of the first shell, and it at least part of being converted to Stimulated Light;
Also comprise second housing, this second housing is formed by least two second housing parts assemblings, for the first shell and wavelength convert rotating disk being closed therein; 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, described wavelength convert rotating disk comprises the first fin, for producing air-flow when rotary work.
4. light-emitting device according to claim 3, is characterized in that, the inside surface of described second housing comprises the second fin or relief fabric in the region that described air-flow flows through, for by the heat conduction on air-flow to second housing.
5. light-emitting device according to claim 1, is characterized in that, described first shell also comprises laser entrance port, gets back to the first enclosure for receiving from the residue laser of wavelength convert rotating disk outgoing.
6. light-emitting device according to claim 1, is characterized in that, described wavelength convert rotating disk comprises reflection chassis and is attached to the wavelength conversion layer on reflection chassis.
7. light-emitting device according to claim 6, is characterized in that, described wavelength convert rotating disk comprises transmissive segments.
8. light-emitting device according to any one of claim 1 to 7, is characterized in that, described first shell and/or second housing inside comprise porosint.
9. a projection display equipment, is characterized in that, comprises light-emitting device according to any one of claim 1 to 7 as light source.
10. 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 |
|---|---|---|---|
| CN201520655789.4U CN205003433U (en) | 2015-08-27 | 2015-08-27 | Illuminator , projection display equipment and lamps and lanterns |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520655789.4U CN205003433U (en) | 2015-08-27 | 2015-08-27 | Illuminator , projection display equipment and lamps and lanterns |
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| CN205003433U true CN205003433U (en) | 2016-01-27 |
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| CN201520655789.4U Active CN205003433U (en) | 2015-08-27 | 2015-08-27 | Illuminator , projection display equipment and lamps and lanterns |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105068368A (en) * | 2015-08-27 | 2015-11-18 | 杨毅 | Luminescence apparatus, projection display apparatus and lamp fixture |
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2015
- 2015-08-27 CN CN201520655789.4U patent/CN205003433U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105068368A (en) * | 2015-08-27 | 2015-11-18 | 杨毅 | Luminescence apparatus, projection display apparatus and lamp fixture |
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