CN105182671B - A kind of laser projection device - Google Patents
A kind of laser projection device Download PDFInfo
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- CN105182671B CN105182671B CN201510497736.9A CN201510497736A CN105182671B CN 105182671 B CN105182671 B CN 105182671B CN 201510497736 A CN201510497736 A CN 201510497736A CN 105182671 B CN105182671 B CN 105182671B
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- thermal source
- adjusting part
- source adjusting
- ray machine
- camera lens
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Abstract
The invention discloses a kind of laser projection device, it is related to electronic technology field, can solve the problem that laser projection device camera lens temperature is too high in the prior art, causes thermal drift so that the not good problem of projected image display effect.Concrete scheme is：The laser projection device includes LASER Light Source, ray machine, camera lens and thermal source adjusting part, and camera lens is connected with ray machine, and ray machine is connected with LASER Light Source；The thermal source adjusting part is fixed on the connecting portion of LASER Light Source and ray machine, or, thermal source adjusting part is fixed on the connecting portion of ray machine and camera lens；Thermal source adjusting part includes shell and inside, and the inside of thermal source adjusting part includes filling core, and filling core is the material with heat insulating function.The present invention is used to improve the projected image display effect of camera lens.
Description
Technical field
The present invention relates to electronic technology field, more particularly to a kind of laser projection device.
Background technology
Laser projection device, such as laser projection tv, its Projection Display part are by LASER Light Source, ray machine, camera lens three
Part composition, wherein LASER Light Source is used to form three primary colours, is simply illustrated with three primary colours herein certainly, it is also possible to four
Primary colours, it is not limited to this, when three primary colours enter x ray machine part by DMD (Digital Micro-mirror Device, numeral
Micro-mirror element) chip modulation, and export and give camera lens part, project display image on projection screen.
But, during stating laser projection in realization, inventor has found that laser light source part is whole laser projection
The part that caloric value is concentrated the most in device, its heat can be also conducted to ray machine and camera lens part so that whole system temperature liter
When optical mirror slip uses resin material in height, especially camera lens, deformed upon under hot environment, so as to cause projection lens to occur
Thermal drift problem so that as less able, projected image is subjective to fog Solutions of Systems, influences whole machine subjective effect.
The content of the invention
Embodiments of the invention provide a kind of laser projection device, can solve the problem that laser projection device camera lens in the prior art
Temperature is too high, causes thermal drift so that the not good problem of image display effect.
To reach above-mentioned purpose, embodiments of the invention are adopted the following technical scheme that：
In a first aspect, a kind of laser projection device is the embodiment of the invention provides, including：LASER Light Source, ray machine, camera lens and
Thermal source adjusting part, the LASER Light Source is connected with the ray machine, and the ray machine is connected with the camera lens；
The thermal source adjusting part is fixed on the connecting portion of the LASER Light Source and the ray machine, or, the thermal source
Adjusting part is fixed on the connecting portion of the ray machine and the camera lens；
The thermal source adjusting part includes shell and inside, and the inside of the thermal source adjusting part includes filling core, institute
It is the material with heat insulating function to state filling core.
Laser projection device provided in an embodiment of the present invention, including：LASER Light Source, ray machine, camera lens and thermal source adjusting part,
Camera lens is connected with ray machine, and ray machine is connected with LASER Light Source；The thermal source adjusting part is fixed on the connecting portion of LASER Light Source and ray machine
Position, or, thermal source adjusting part is fixed on the connecting portion of ray machine and camera lens；Thermal source adjusting part includes shell and inside, heat
The inside of source adjusting part includes filling core, and filling core is the material with heat insulating function.Because in camera lens and laser light
The thermal source adjusting part with heat insulating function is increased between source, it is to avoid or the heat transfer of LASER Light Source is reduced to camera lens,
Solve laser projection device camera lens temperature in the prior art too high, cause thermal drift so that projected image display effect is not good
Problem.
Brief description of the drawings
Technical scheme in order to illustrate more clearly the embodiments of the present invention, below will be in embodiment or description of the prior art
The required accompanying drawing for using is briefly described, it should be apparent that, drawings in the following description are only some realities of the invention
Example is applied, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to these accompanying drawings
Obtain other accompanying drawings.
Fig. 1 is a kind of laser projection device structural representation provided in an embodiment of the present invention；
Fig. 2 is a kind of thermal source adjusting part section of structure provided in an embodiment of the present invention；
Fig. 3 is a kind of thermal source adjusting part structural front view provided in an embodiment of the present invention；
Fig. 4 is a kind of camera lens adaptor end view provided in an embodiment of the present invention；
Fig. 5 is a kind of ray machine adaptor end view provided in an embodiment of the present invention；
Fig. 6 splits schematic diagram for a kind of thermal source adjusting part connected mode provided in an embodiment of the present invention；
Fig. 7 is another thermal source adjusting part structural front view provided in an embodiment of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
The embodiment of the present invention provides a kind of laser projection device, and shown in reference picture 1, the laser projection device 10 includes laser
Light source 101, ray machine 102, camera lens 103 and thermal source adjusting part 104, camera lens 103 are connected with ray machine 102, ray machine 102 and laser light
Source 101 connects.
Thermal source adjusting part 104 is fixed on the connecting portion of LASER Light Source 101 and ray machine 102, or, thermal source adjusting part
104 connecting portions for being fixed on ray machine 102 and camera lens 103.
Specifically, as shown in Fig. 2 Fig. 2 shows the cross-section structure of thermal source adjusting part 104, thermal source adjusting part 104 is wrapped
Containing shell and inside, the inside of thermal source adjusting part 104 includes filling core 1041, and filling core 1041 is with heat insulating function
Material.So, because thermal source adjusting part 104 is fixed between LASER Light Source 101 and camera lens 103, and with heat insulating function,
The heat for allowing for LASER Light Source 101 is difficult to conduction to the position of camera lens 103, reduces the temperature of camera lens 103, solves existing skill
10 camera lens of laser projection device, 103 temperature are too high in art, cause thermal drift so that the not good problem of image display effect.
Optionally, shown in reference picture 2, the shell of the thermal source adjusting part 104 includes at least one of which vacuum protection material
1042, further alternative, the vacuum protection material 1042 includes at least one in aluminized mylar, polyethylene film.
Optionally, the inside of the thermal source adjusting part 104 can also include gas absorption material 1043, for adsorbing sky
Gas so that the inside of thermal source adjusting means 104 is vacuum state.Further alternative, the gas absorption material 1043 can be included
At least one in barium-lithium alloy, cobalt oxide, activated carbon, calcium oxide.So, the surface of thermal source adjusting part 104 is vacuum protection
Material 1042, has completely cut off gas conduction, and inside includes gas absorption material 1043, can adsorb in process of production, vacuumizes
Afterwards seal when possibly into a small amount of gas, and filling core 1041 may can also discharge some gases in use,
Such as nitrogen, oxygen, vapor, hydrogen, carbon dioxide, foaming agent etc., gas absorption material 1043 can adsorb these gases,
Ensure that inside thermal source adjusting part 104 be vacuum state all the time, enhance the effect of isolation heat transfer.
In addition, optional, the filling core 1041 can be concrete dynamic modulus material, it is preferred that the filling core 1041 is wrapped
Containing at least one peeled off in filament, polyurethane.
It should be noted that filling core 1041 uses concrete dynamic modulus material, can play a supporting role, because thermal source is adjusted
The inside of section component 104 includes gas absorption material 1043, and surface is vacuum protection material 1042, can cause thermal source regulation group
The inner vacuum of part 104, concrete dynamic modulus material can avoid thermal source adjusting part under vacuum from shrinking or shriveled by air pressure；And
And concrete dynamic modulus material can limit the motive air of some gas molecules, gaseous exchange and heat transfer are further prevented, it is necessary to say
Bright, concrete dynamic modulus material air vent aperture is smaller, and the convection current and conduction of gas are fewer, when aperture and other molecules of core
When mean free path is suitable, the convection current and conduction of gas are just prevented from substantially；In addition, under vacuum, radiant heat transfer is
The main transmission form of heat, filling core 1041 can carry out absorption scattering to infrared emanation, further enhance isolation heat
The effect of conduction.
Optionally, shown in reference picture 3, Fig. 3 shows the front view of thermal source adjusting part 104, and thermal source adjusting part 104 is wrapped
Containing at least two connecting holes 1044, thermal source adjusting part can be fixed on laser projection device 10 by connecting hole 1044,
Preferably, in Fig. 3 by taking 6 connecting holes 1044 as an example, do not represent the present invention is limited to this.In addition, optional, thermal source regulation group
Part also includes at least two location holes 1045, certainly, is merely illustrative herein, in process of production, it is not absolutely required to make
Positioned with location hole 1045.Preferably, the connecting hole 1044 of thermal source adjusting part 104 uses sealant sealing, to connection
After hole 1044 seals, then will be evacuated inside thermal source adjusting part 104, certainly, sealing can also using sealing gasket etc. its
His method, is merely illustrative herein, does not represent the present invention is limited to this.
Optionally, when thermal source adjusting part 104 is fixed on the connecting portion of LASER Light Source 101 and ray machine 102, laser light
Source 101 includes at least two connecting hole corresponding with the position of thermal source adjusting part 104, and ray machine 102 is included and thermal source adjusting part
Corresponding at least two connecting hole in 104 positions, LASER Light Source 101, ray machine 102 and thermal source adjusting part 104 are solid by connecting hole
Fixed connection；Or, when thermal source adjusting part 104 is fixed on the connecting portion of ray machine 102 and camera lens 1033, ray machine 102 is included
At least two connecting hole corresponding with the position of thermal source adjusting part 104, camera lens 1033 is included and the position pair of thermal source adjusting part 104
At least two connecting holes answered, ray machine 102, camera lens 1033 and thermal source adjusting part 104 are fixedly connected by connecting hole.
Preferably, when thermal source adjusting part 104 is fixed on the connecting portion of ray machine 102 and camera lens 103, camera lens 103 is also
Camera lens adaptor 1031 can be included, the camera lens adaptor 1031 is used to carry the optical mirror slip component in mirror head outer shell and camera lens
For base supporting role, therefore generally use some metal alloy materials, with certain hardness, the He of camera lens adaptor 1031
Thermal source adjusting part 104 is connected, and also has certain sizing supporting role to thermal source adjusting part 104.Thermal source with reference to shown in Fig. 3
The front view of adjusting part 104, the end view of the camera lens adaptor 1031 is as shown in figure 4, thermal source adjusting part 104 is included
At least two connecting holes 1044, camera lens adaptor 1031 is comprising corresponding with the position of connecting hole 1044 of thermal source adjusting part 104
At least two connecting holes 1032, thermal source adjusting part 104 is by the He of at least two connecting hole 1044 of thermal source adjusting part 104
At least two connecting holes 1032 of camera lens adaptor 1031 are fixed on camera lens 103.In Fig. 4, camera lens adaptor 1031 includes 6
Connecting hole 1032,6 connecting holes 1032 of camera lens adaptor 1031 and 6 positions of connecting hole 1044 of thermal source adjusting part 104
Correspondence.Ray machine 102 includes the connecting hole 1022 of ray machine adaptor 1021 and ray machine 102, and the connecting hole 1022 of ray machine 102 is arranged at
On ray machine adaptor 1021, with reference to Fig. 3 and Fig. 4, shown in reference picture 5, Fig. 5 shows that the end face of ray machine adaptor 1021 is illustrated
Figure, this sentences as a example by bolt is fixed and illustrates, and the connecting hole 1044 of thermal source adjusting part 104 can be unthreaded hole, ray machine 102
Connecting hole 1022 is also unthreaded hole, connecting hole 1032, the thermal source adjusting part of the camera lens adaptor 1031 that bolt is passed through into camera lens 103
104 connecting hole 1044 and the connecting hole 1022 of ray machine 102, are then fixed with nut, thus consolidate thermal source adjusting part 104
Due to camera lens 103 and the connecting portion of ray machine 102, certainly, it is merely illustrative herein, it is also possible to using its other party such as screws
Formula is fixed, in this regard, the present invention is not limited.Shown in reference picture 6, Fig. 6 shows ray machine 102, thermal source regulation group in the present embodiment
The connected mode of part 104 and camera lens 103 splits schematic diagram, and certainly, Fig. 6 is a kind of exemplary illustration, does not represent the present invention
It is confined to this.
Optionally, when thermal source adjusting part 104 is located at the connecting portion of ray machine 102 and LASER Light Source 101, reference picture 7
Shown, Fig. 7 shows the front view of the thermal source adjusting part 104 of the connecting portion positioned at ray machine 102 and LASER Light Source 101, should
Thermal source adjusting part 104 includes at least two connecting holes 1044 and at least two location holes 1045, certainly, simply illustrates herein
It is bright, do not represent the present invention is limited to this.It should be noted that the front view and Fig. 3 of the thermal source adjusting part 104 shown in Fig. 7
The front view of shown thermal source adjusting part 104 is different shape, and connecting hole 1044 is different with the position of location hole 1045, but
Its material is identical, as shown in Figure 2.
In addition, it is necessary to illustrate, thermal source adjusting part proposed by the present invention has certain thickness, can be by adjustment
The thickness of inside filling material changes the integral thickness of whole adjusting part, and the thickness for passing through to adjust thermal source adjusting part can
To change distances of the DMD (Digital Micro-mirror Device, digital micro-mirror) and between camera lens, make up due to portion
The tolerance that part is manufactured and assembly technology is caused, it is possible to achieve the best match distance between camera lens and dmd chip, so as to lift light
Engine efficiency, optimizes whole machine subjective effect.The thermal source adjusting means can also be used with the collocation of the pad of metallicity simultaneously, the thickness of pad
Degree is generally relatively thin, and may also be used for realizing space fine-adjusting and supporting role with certain supporting role, therefore pad, real
The optimization matching of existing projection lens and DMD,
Laser projection device provided in an embodiment of the present invention, including：LASER Light Source, ray machine, camera lens and thermal source adjusting part,
Camera lens is connected with ray machine, and ray machine is connected with LASER Light Source；The thermal source adjusting part is fixed on the connecting portion of LASER Light Source and ray machine
Position, or, thermal source adjusting part is fixed on the connecting portion of ray machine and camera lens；Thermal source adjusting part includes shell and inside, heat
The inside of source adjusting part includes filling core, and filling core is the material with heat insulating function.Because in camera lens and laser light
Increased the thermal source adjusting part with heat insulating function between source, it is to avoid the heat transfer of LASER Light Source is solved to camera lens
Laser projection device camera lens temperature is too high in the prior art, causes the deformation of optical mirror slip, causes thermal drift so that image shows
The problem of effect on driving birds is not good.
In several embodiments provided herein, it should be understood that disclosed system, apparatus and method can be with
Realize by another way.For example, device embodiment described above is only schematical, for example, the unit
Divide, only a kind of division of logic function there can be other dividing mode when actually realizing, for example multiple units or component
Can combine or be desirably integrated into another system, or some features can be ignored, or do not perform.It is another, it is shown or
The coupling each other for discussing or direct-coupling or communication connection can be the indirect couplings of device or unit by some interfaces
Close or communicate to connect, can be electrical, mechanical or other forms.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
The present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those within the art that：It still may be used
Modified with to the technical scheme described in foregoing embodiments, or equivalent is carried out to which part technical characteristic；
And these modification or replace, do not make appropriate technical solution essence depart from various embodiments of the present invention technical scheme spirit and
Scope.
Claims (10)
1. a kind of laser projection device, it is characterised in that including：LASER Light Source, ray machine, camera lens and thermal source adjusting part, it is described
LASER Light Source is connected with the ray machine, and the ray machine is connected with the camera lens；
The thermal source adjusting part is fixed on the connecting portion of the LASER Light Source and the ray machine, or, the thermal source regulation
Component is fixed on the connecting portion of the ray machine and the camera lens；
The thermal source adjusting part includes shell and inside, and the inside of the thermal source adjusting part includes filling core, described to fill out
It is the material with heat insulating function to fill core.
2. device according to claim 1, it is characterised in that
The shell of the thermal source adjusting part includes at least one of which vacuum protection material.
3. device according to claim 2, it is characterised in that the vacuum protection material includes aluminized mylar, poly-
At least one in vinyl film.
4. device according to claim 1, it is characterised in that
The inside of the thermal source adjusting part includes gas absorption material, for adsorbing air so that the thermal source adjusting means
Inside is vacuum state.
5. device according to claim 4, it is characterised in that
The gas absorption material includes at least one in barium-lithium alloy, cobalt oxide, activated carbon, calcium oxide.
6. device according to claim 1, it is characterised in that
The filling core is concrete dynamic modulus material.
7. device according to claim 1, it is characterised in that
The filling core includes at least one in glass fiber, polyurethane.
8. device according to claim 1, it is characterised in that
The thermal source adjusting part includes at least two connecting holes；
When the thermal source adjusting part is fixed on the connecting portion of the LASER Light Source and the ray machine, the LASER Light Source bag
Containing at least two connecting hole corresponding with the thermal source adjusting part position, the ray machine is included and thermal source adjusting part position
Corresponding at least two connecting hole is put, the LASER Light Source, the ray machine and the thermal source adjusting part pass through the connecting hole
It is fixedly connected；
Or, when the thermal source adjusting part is fixed on the connecting portion of the ray machine and the camera lens, the ray machine is included
At least two connecting hole corresponding with the thermal source adjusting part position, the camera lens is included and the thermal source adjusting part position
Corresponding at least two connecting hole, the ray machine, the camera lens and the thermal source adjusting part are fixed by the connecting hole and connected
Connect.
9. device according to claim 8, it is characterised in that
The connecting hole of the thermal source adjusting part uses sealant sealing.
10. the device according to claim any one of 1-9, it is characterised in that
The thermal source adjusting part also includes at least two location holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510497736.9A CN105182671B (en) | 2015-08-13 | 2015-08-13 | A kind of laser projection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510497736.9A CN105182671B (en) | 2015-08-13 | 2015-08-13 | A kind of laser projection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105182671A CN105182671A (en) | 2015-12-23 |
| CN105182671B true CN105182671B (en) | 2017-06-16 |
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| CN201510497736.9A Active CN105182671B (en) | 2015-08-13 | 2015-08-13 | A kind of laser projection device |
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Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4657022B2 (en) * | 2004-10-15 | 2011-03-23 | 三洋電機株式会社 | Projection display device |
| CN102385234B (en) * | 2011-10-27 | 2013-07-24 | 海信集团有限公司 | Wall-mounted projector |
| CN103324013B (en) * | 2012-03-23 | 2015-07-29 | 中强光电股份有限公司 | Projection arrangement |
| CN103616791A (en) * | 2013-12-10 | 2014-03-05 | 大连理工大学 | Camera lens heat-insulating cooling and temperature control device |
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Effective date of registration: 20200814 Address after: 266555 Qian WAN port road, Huangdao District, Qingdao, Shandong Province, No. 218 Patentee after: Qingdao Hisense Laser Display Co.,Ltd. Address before: 266100 Zhuzhou Road, Laoshan District, Shandong, No. 151, No. Patentee before: HISENSE Co.,Ltd. |
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