CN105301750B - Optics module, light emitting device and projection display equipment - Google Patents
Optics module, light emitting device and projection display equipment Download PDFInfo
- Publication number
- CN105301750B CN105301750B CN201510655645.3A CN201510655645A CN105301750B CN 105301750 B CN105301750 B CN 105301750B CN 201510655645 A CN201510655645 A CN 201510655645A CN 105301750 B CN105301750 B CN 105301750B
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- Prior art keywords
- shell
- light
- laser
- optics module
- housing
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
- G02B19/0033—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use
- G02B19/0047—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/20—Lamp housings
- G03B21/2006—Lamp housings characterised by the light source
- G03B21/2033—LED or laser light sources
- G03B21/204—LED or laser light sources using secondary light emission, e.g. luminescence or fluorescence
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/20—Lamp housings
- G03B21/206—Control of light source other than position or intensity
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Projection Apparatus (AREA)
Abstract
It is proposed a kind of optics module and light emitting device and projection display equipment, for receiving laser and guided to it, including optical system, optical system is made of at least one optical element, for guiding laser；It further include the first shell, first shell is assembled by least two first casing assemblies, for closing inside it optical system；First shell includes the light inlet for receiving laser；Further include second housing, for by the joint sealing between the first casing assembly inside it.Optical system is by the first shell seal, and the first shell is closed by second housing, this is equivalent to optical system and has been closed twice, then probability of the dust from the external world into optical system is just in the decline of several orders of magnitude.Experiment also turns out that the light source manufactured in this way, brightness decay is very slow, and service life greatly prolongs.
Description
Technical field
The present invention relates to laser light source field, more particularly to optics module and using the optics module light emitting device and
Projection display equipment.
Background technique
Currently, the fluorescent powder turntable of laser excitation rotation generates the fluorescence of timesharing, this method is by relatively more extensive
Applied in Projection Display industry.Therefore theoretically service life is very high due to using all solid state luminescent material for this scheme, can
To reach tens of thousands of hours.However the actual situation is that the light-source brightness of this method manufacture is decayed quickly, actual life is only
Light source product scheme for thousands of hours, real long-life does not occur always.
Summary 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 optics module, sharp for receiving
Light simultaneously guides it, including optical system, and optical system is made of at least one optical element, for guiding laser；Also
Including the first shell, first shell is assembled by least two first casing assemblies, for optical system to be enclosed in it
It is internal；First shell includes the light inlet for receiving laser；It further include second housing, being used for will be between the first casing assembly
Joint sealing inside it.
The present invention also proposes a kind of light emitting device, and including laser source and above-mentioned optics module, what laser source was issued swashs
The light inlet of first shell of the light Jing Guo optics module is incident in optical system.
The present invention also proposes a kind of projection display equipment, including above-mentioned light emitting device as light source.
Optical system is by the first shell seal, and the first shell is closed by second housing, this is equivalent to optical system
It has been closed twice, then probability of the dust from the external world into optical system is just in the decline of several orders of magnitude.Experiment also turns out,
The light source manufactured in this way, brightness decay is very slow, and service life greatly prolongs.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the first embodiment of optics module of the invention；
Fig. 2 is the structural schematic diagram of another embodiment of optics module of the invention；
Fig. 3 A and Fig. 3 B are the structural schematic diagrams of other two embodiment of optics module of the invention；
Fig. 4 A is the structural schematic diagram of another embodiment of optics module of the invention；
Fig. 4 B is the formal figure of Fig. 4 A embodiment medium wavelength conversion turntable and fin；
Fig. 5 is the structural schematic diagram of another embodiment of optics module of the invention；
Fig. 6 is the structural schematic diagram of another embodiment of optics module of the invention.
Specific embodiment
It is studied repeatedly by inventor, the main reason for laser light source brightness decay is fast is that dust enters light source internal light
Lu Zhong is adsorbed in optical element surface under the action of light laser and causes brightness decay.As dust constantly enters and is adsorbed in
Optical element surface, brightness can constantly decay.
In order to solve this problem, inventor attempts to seal on the shell of light source, but low effort, the reason is that light
The shell in source has multiple components to be spliced, and is difficult to accomplish between each other airtight, therefore is difficult to stop short grained dust to enter
Inside the optical path of light source.Moreover, using the materials such as adhesive tape, adhesive tape between multiple components in order to increase air-tightness, tieing up after sale
It will cause the bigger proportion of goods damageds when repairing, virtually increase cost.
Finally, inventor has found solution, as described below.
The present invention proposes a kind of optics module, and the structural schematic diagram of first embodiment is as shown in Figure 1.The optics module is used
In reception laser 111 and it is guided.The optics module includes optical system, and optical system is by least one optical element
101 compositions, for guiding laser.Specifically, in the present embodiment, optical element 101 is collector lens, can be by incidence
Laser 111 focuses.Optics module further includes the first shell 103, and first shell 103 is by the assembly of at least two first casing assemblies
It forms, for closing inside it optical system.First shell 103 includes entering for light inlet 103a and closing light inlet 103a
Light cover board 105.Wherein, light inlet 103a enters light cover board 105 and is transmissive to laser 111, therefore laser for receiving laser 111
111 can enter the inside of the first shell 103, while enter the closure that light cover board 105 also assures the first shell 103.?
In Fig. 1, enter light cover board 105 there is no light inlet 103a is closely adjacent to, this is the clarity in order to indicate in figure, is entered in practice
Light cover board 105 is closely adjacent to light inlet 103a and has reached its effect of closing.It is identical in following figure, it is not repeated to illustrate.
It is worth noting that " closing " is used for multiple times in the description of various embodiments of the present invention, it is indicated using conventional
Method other objects are surrounded inside it, and not can be carried out between the external world flowing of unobstructed gas or liquid.Example
A complete shell such as is assembled into using two casing assemblies to close inside it other objects, refers to two shells
Component is fully engaged against in design, and assembled rear surface does not have apparent hole or gap.In actual assembled, even if due to adding
The factors such as work error, material be rough penetrate into gas or liquid by assembled seam or exudation, due to the external world
Between not can be carried out unobstructed circulation, this complete assembled body is also closed.
Optics module further includes second housing 104, for by the joint sealing between the first casing assembly inside it.Specifically
For, in the present embodiment, second housing 104 closes the first shell 103 inside it, certain so to be also achieved that the
Purpose of the joint sealing inside second housing between one casing assembly.In order to allow laser 111 to enter inside the first shell 103,
Enter light cover board 106 including light inlet 104a and closing light inlet 104a on second housing 104.Identical reason, in this way, laser
111, which can pass through light inlet 104a, enters in second housing, while entering light cover board 106 and also assuring second housing 104
Closure.
It in the present embodiment, further include the Wavelength converter 102 being located inside the first shell 103, for receiving laser
111 and emit stimulated light 112.Wavelength converter is exactly wavelength conversion layer 102 in the present embodiment.Laser 111 passes through optically focused
What is focused after lens 101 is incident on wavelength conversion layer 102, and wavelength conversion layer 102 is excited and emits stimulated light 112, stimulated light
112 by collector lens 101 collect after collimated after the light inlet 104a of the light inlet 103a of the first shell and second housing
Outgoing, then reflects on light-dividing device 107.Light-dividing device 107 is light splitting optical filter, is reflected simultaneously for transmission laser 111
Stimulated light 112, such stimulated light can be separated and are emitted with laser optical path.
In the present embodiment, optical system and Wavelength converter be by the first shell seal, and between the first casing assembly
Seam is closed by second housing again, this is equivalent to optical system and Wavelength converter has been closed twice, then dust from
The probability of the external world into optical system is just in the decline of several orders of magnitude.Experiment also turns out that the light source manufactured in this way, brightness declines
Subtract very slow, service life greatly prolongs.
In the present embodiment, the first shell and second housing are fixedly linked, and are conducive to assembling product and heat in this way
Shed.Preferably, the first shell and second housing work in-process are integrally formed.This preferred embodiment is equally applicable to down certainly
The embodiment in face.
In the embodiment shown in fig. 1, Wavelength converter 102 is located at the inside of the first shell, and depends on outside first
On the inner wall of shell, heat caused by such Wavelength converter can pass to the effect that the first shell has reached heat dissipation.?
In another embodiment of the present invention, Wavelength converter is then located at except the first shell, inside second housing.
As shown in Fig. 2, the present embodiment and the difference of embodiment shown in FIG. 1 are, the first shell 203 further includes that laser goes out
Optical port 203b and the light cover board 208 out being covered on Laser output mouth 203b, laser 211 is after the focusing of collector lens 201 from sharp
Light light-emitting window 203b outgoing, light cover board 208 is for closing Laser output mouth transmission laser simultaneously out.Wavelength converter 202 is
Wavelength conversion layer, it is located at the inside of second housing 204, for receive from Laser output mouth be emitted laser 211 and emit by
Laser 212.Likewise, stimulated light 212 collected and collimated by collector lens 201 after the light inlet through the first shell and second housing
Outgoing.The present embodiment is identical as the working principle of embodiment shown in FIG. 1, the difference is that the position of wavelength conversion layer.Likewise,
In the present embodiment, optical system is enclosed twice by the first shell and second housing, and the probability that dust enters is very low.
In the above two embodiments, the first shell is all to be completely enclosed by second housing, and actually might not
It needs so.The structural schematic diagram of another embodiment of optics module of the invention is as shown in Figure 3A.In the present embodiment, it is
The first shell of clear expression, depicts the first casing assembly 3031 and 3032, the first shell 303 is assembled by the two.
It is worth noting that in other embodiments, if not drawing the first casing assembly especially, explanation does not have
First casing assembly, but It is not necessary to particularly point out in explanation.In addition in figure 3 a, have between two the first casing assemblies
Apparent gap, this is to indicate the specially treated conveniently done in figure, and the two is close assembled in practice.
Unlike embodiment shown in FIG. 1, in the present embodiment, there is no completely will be outside first for second housing 304
Shell 303 is closed inside it, the light inlet of the first shell and is entered light cover board 305 and is not sealed to inside second housing.Together
When, the part enclosure of second housing and the first casing assembly 3031, which fits closely, (enters about 305 light cover board in sticking part such as Fig. 3 A
Shown in the dashed circle of two sides), the seam between two the first casing assemblies is enclosed, that is, second housing will be outside first
Joint sealing between shell component is inside it.In this way, dust does not just have since the seam between two the first casing assemblies is closed
Have an opportunity to enter directly into the first interior of shell from the external world, optical system has still been closed twice.
Similar with embodiment shown in Fig. 3 A, second housing 304 is not also completely by embodiment shown in Fig. 3 B
One shell 303 is closed inside it, and the part enclosure of second housing 304 and the first casing assembly 3032 fits closely (sticking part
As shown in the dashed circle of two sides above and below Fig. 3 B medium wavelength conversion layer), the seam between two the first casing assemblies is enclosed,
Namely second housing by the joint sealing between the first casing assembly inside it.
By above embodiment explanation it is appreciated that second housing can completely enclose the first shell, can also only seal
Close between the first casing assembly seam (second housing completely enclose the first shell can be understood as closing the first casing assembly it
Between seam a kind of form), can achieve the purpose that in this way extend light source service life.
The structural schematic diagram of another embodiment of optics module of the invention is as shown in Figure 4 A.With implementation shown in Fig. 2
Unlike example, Wavelength converter 402 includes wavelength convert sabot 402a and the driving for driving wavelength convert turntable rotation
Device 402c.It include fin 402d on wavelength convert turntable 402a, for generating centrifugation when wavelength convert turntable 402a is rotated
Air-flow 491.It further include the wavelength conversion layer 402b of circle distribution on wavelength convert turntable 402a, wavelength conversion layer 402b is gathered
Emit stimulated light after burnt laser excitation.Since wavelength convert turntable 402a is to rotate, on such wavelength conversion layer 402b
Each point is that excitation is periodically irradiated by laser, this is conducive to the diffusion of wavelength conversion layer amount of localized heat.
The front view of wavelength convert turntable and the fin on it is as shown in Figure 4 B.As it can be seen that fin 402d along the circumferential direction divides
Cloth simultaneously extends in centrifugation divergent shape, it will be understood that can be when wavelength convert turntable rotates as the principle of centrifugal fan
The air-flow 491 of centrifugation is generated between fin 402d.The air-flow of the centrifugation can take away the heat on wavelength convert turntable, be reached for wave
The effect of long conversion layer 402b cooling.Of course for the air-flow for generating centrifugation, the design of fin 402d can also be other forms,
This belongs to the prior art and does not repeat herein.
In the present embodiment, on at least partly inner wall for the second housing 404 that air-flow 491 is flowed through, including fluctuating
Shape or fin 409 are to increase its surface area.In this way, heat entrained on air-flow 491 can more fully pass to the
Two shells 404, the heat inside such second housing can be transmitted to second housing surface and outside.Make in the present embodiment
Fin 409 can be risen and fallen by other shapes and replace, such as bar shaped or dotted raised or sunken, can reach increasing
The effect on big this internal partial wall surface of second housing.Even if the heat on air-flow 491 can also part certainly without fin 409
Pass to second housing.
It preferably, in the present embodiment, further include porous material in the region that air-flow 491 is flowed through.Porous material can be with
Dust in adsorption gas flow, so that being adsorbed on the porous material into most of the dust inside second housing, into first
The probability of the optical system of interior of shell is further reduced.Porous material can be metal polyporous material, can also rise in this way
To the effect of conduction heat.Certainly, porous material can also be used in combination with the fin in Fig. 4 A or the shape of fluctuating 409.
In another embodiment of optics module of the invention, as shown in figure 5, different from embodiment shown in Fig. 4 A
It is that optical system further includes light-dividing device 507 other than collector lens, and stimulated light 512 is in the first shell just by light splitting dress
It sets 507 reflection and is separated with the optical path of laser 511.In order to guide stimulated light, the first shell further includes stimulated light light-emitting window
521, second housing further include light-emitting window 504b and be covered on light-emitting window 504b go out light cover board 522, stimulated light is successively passed through
It is emitted after light-emitting window 521 and 504b.It is worth noting that stimulated light light-emitting window 521 is a lens, it is acting on stimulated light
While 512 or first casing assembly, the work of closing optical system is played together with other first casing assemblies
With.
In the embodiment above, stimulated light is along the direction opposite direction outgoing of laser light incident.In light of the invention
In another embodiment for learning mould group, as shown in fig. 6, Wavelength converter 602 wraps unlike embodiment shown in Fig. 4 A
Transparent wavelength convert turntable 602a and wavelength conversion layer 602b thereon is included, wavelength conversion layer 602b is produced after laser excitation
Raw stimulated light 612 can continue to propagate along the direction of laser.Second housing further includes light-emitting window 604b and is covered on light-emitting window
On go out light cover board 622, stimulated light can by light-emitting window 604b be emitted.In addition, different from embodiment shown in Fig. 4 A
Be, the wavelength convert turntable 602a in Fig. 6 there is no fin, this is because fin it is not necessary to, when wavelength conversion layer is sent out
When heat out is less high, it can be lost in the rotation of wavelength convert turntable.
It can be seen from the explanation of above multiple embodiments in the present invention, the light inlet of the first shell and second housing
With light-emitting window there are many possibility and combination, those skilled in the art can designed, designed according to the actual situation.Wherein, only
What the light inlet of one shell was necessarily present, because it is needed for receiving laser.
In the explanation of above multiple embodiments, light inlet and light-emitting window use cover board often to be closed, this
It is also that can change in practical application.Such as in the embodiment shown in fig. 5, the first shell just used lens 521 as
Light-emitting window, lens 521 are also construed as the cover board of light-emitting window in this case certainly.Still further it is possible that being exactly
One shell and/or second housing are made by transparent material, there is no need to light-emitting window that is especially reserved or processing or are entered at this time
Optical port does not need special cover board yet, and the place that light penetrates is exactly light inlet or light-emitting window.Therefore, in the present invention, light inlet
Or light-emitting window refers to and light can be guided incident or outgoing, while having no effect on the light of the first shell and second housing closure
Access.
It all include Wavelength converter in multiple embodiments of the above optics module, this is because in laser light source
Medium wavelength conversion equipment is in daily use, but it is necessary for the present invention that this, which does not represent Wavelength converter,.Even if without wavelength
Conversion equipment or Wavelength converter still can be very good to protect in the outside of second housing, the first shell and second housing
Shield optical system is not by the absorption of extraneous dust to keep high efficiency.
The present invention also proposes a kind of light emitting device, and including laser source and above-mentioned optics module, what laser source was issued swashs
Light is incident in optical system by the light inlet of the first shell.
The present invention also proposes a kind of projection display equipment, including above-mentioned light emitting device as light source.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills
Art field, is included within the scope of the present invention.
Claims (10)
1. a kind of optics module, for receiving laser and being guided to it, it is characterised in that:
Including optical system, optical system is made of at least one optical element, for guiding laser；
It further include the first shell, first shell is assembled by least two first casing assemblies, for sealing optical system
It closes inside it；First shell includes the light inlet for receiving laser；
Further include second housing, for by the joint sealing between the first casing assembly inside it.
2. optics module according to claim 1, which is characterized in that the second housing is by the first shell seal in it
Portion.
3. optics module according to claim 1, which is characterized in that further include the wavelength convert positioned at the first interior of shell
Device, for receiving laser and emitting stimulated light.
4. optics module according to claim 1, which is characterized in that first shell further includes Laser output mouth, is swashed
Light is emitted from Laser output mouth；It further include the Wavelength converter inside second housing, for receiving from the first shell
The laser of Laser output mouth outgoing simultaneously emits stimulated light.
5. optics module according to claim 4, which is characterized in that Wavelength converter includes wavelength convert turntable and drive
Move the driving device of wavelength convert turntable rotation；It include fin on wavelength convert turntable, for being rotated when wavelength convert turntable
When generate centrifugation air-flow.
6. optics module according to claim 5, which is characterized in that the second housing that the air-flow is flowed through at least
On internal partial wall, shape or fin including fluctuating are to increase its surface area.
7. optics module according to claim 5 or 6, which is characterized in that in the region that the air-flow is flowed through, further include
Porous material.
8. optics module according to claim 1, which is characterized in that first shell and second housing are integrally formed.
9. a kind of light emitting device, which is characterized in that including laser source and optics according to any one of claim 1 to 8
The light inlet of mould group, first shell of the laser that laser source is issued Jing Guo optics module is incident in optical system.
10. a kind of projection display equipment, which is characterized in that including light emitting device according to claim 9 as light source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510655645.3A CN105301750B (en) | 2015-10-12 | 2015-10-12 | Optics module, light emitting device and projection display equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510655645.3A CN105301750B (en) | 2015-10-12 | 2015-10-12 | Optics module, light emitting device and projection display equipment |
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| Publication Number | Publication Date |
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| CN105301750A CN105301750A (en) | 2016-02-03 |
| CN105301750B true CN105301750B (en) | 2018-12-25 |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN205103489U (en) * | 2015-10-12 | 2016-03-23 | 杨毅 | Optical modulex , illuminator and projection display equipment |
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| 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 |
| CN203340177U (en) * | 2013-06-28 | 2013-12-11 | 深圳市同润视光电五金有限公司 | Multifunctional dome camera shell |
| JP6450959B2 (en) * | 2014-03-18 | 2019-01-16 | セイコーエプソン株式会社 | projector |
| CN104614926A (en) * | 2014-10-28 | 2015-05-13 | 扬州吉新光电有限公司 | Wavelength conversion device with a cooling structure baseplate and light emitting device |
| CN204629367U (en) * | 2015-01-31 | 2015-09-09 | 杨毅 | Wavelength converter and light-emitting device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN205103489U (en) * | 2015-10-12 | 2016-03-23 | 杨毅 | Optical modulex , illuminator and projection display equipment |
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Effective date of registration: 20200106 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: 20201207 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.) |