CN1609700A - Projector and shading radiating cover used for projector - Google Patents
Projector and shading radiating cover used for projector Download PDFInfo
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- CN1609700A CN1609700A CN 200310101587 CN200310101587A CN1609700A CN 1609700 A CN1609700 A CN 1609700A CN 200310101587 CN200310101587 CN 200310101587 CN 200310101587 A CN200310101587 A CN 200310101587A CN 1609700 A CN1609700 A CN 1609700A
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- air outlet
- heat dissipating
- projector
- dissipating housing
- light source
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Abstract
The present invention reveals one kind of light shading and heat dissipating hood for projector. The projector includes one light source, one fan, one air outlet and one light shading and heat dissipating hood set in the air outlet. The light shading and heat dissipating hood includes several metal plates and is used for dissipating heat the light source generates and reduce scattering of light the light source emits.
Description
Technical field
The invention relates to a kind of projector, especially about a kind of light shield that is used for projector.
Background technology
Liquid crystal projector just begins development after nineteen ninety, and has the characteristic that is easy to carry about with one, easily adjusts compared to traditional projector.The principle of projector is identical with transparency or lantern slide, and all being to use a high brightness bulb is light source, and content is projected on white screen or the wall.The present video picture assembly that projector adopted is nothing more than being iconoscope (CRT), high temperature polysilicon penetrate through type liquid crystal display board and digital light processing projection (Digital Light Processing; DLP) assembly.
In the design of liquid crystal projector, the heat dissipation problem that how to solve bulb source is important.Generally speaking, common way is to dispel the heat at bulb source left side, right side or rear device one fan, shown in Figure 1A and 1B.Referring to Figure 1A and Figure 1B, the air outlet 14 via projector spills from the air side of fan 12 for the light of avoiding bulb source 11, and air outlet 14 places of projector must add light shield 13 or 13a comes shading.Yet, because institute adds all light shields 13 or 13a is made by plastic material, therefore needing easily have bigger thickness under the situation of draft angle, and more restricted on designing.
The flow impedance of air-out was excessive when thus, this caused heat radiation easily once having light shield 13 or 13a now, outlet temperature is too high, reduce fan efficiency, reach problems such as making noise.
For this reason, real in the design of projector have the demand that addresses the above problem to exist.These demands comprise the generation that reduces impedance, raising radiating efficiency, reduction outlet temperature and noise-decreasing that light shield caused.
The utility model content
Therefore, a purpose of the present invention is to provide a kind of shading heat dissipating housing that is used for projector, its thinner thickness, and the flow impedance of air-out in the time of effectively reducing heat radiation reduces noise; Have preferable thermal conduction characteristic, can rapidly the heat in the projector be left, to promote fan efficiency.
Another object of the present invention is to provide a kind of projector that disposes shading heat dissipating housing of the present invention, it has low outlet temperature and high cooling efficiency.
Another purpose of the present invention is to provide a kind of projector that disposes shading heat dissipating housing of the present invention and heat pipe, and it has low outlet temperature and high cooling efficiency.
According to the present invention first implement the sample attitude be used to have a light source, the shading heat dissipating housing of the projector of a fan and an air outlet comprises most sheet metals, be the air outlet place that is configured in projector, in order to the heat that light source sent that loose to remove projector and reduce the light scattering that this light source sends and go out this air outlet.
According to the present invention second implement the sample attitude be used to have a light source, the shading heat dissipating housing of the projector of a fan and an air outlet comprises most sheet metals, it is the air outlet place that is configured in projector, in order to the heat that light source sent that loose to remove projector and reduce the light scattering that this light source sends and go out this air outlet, and above-mentioned sheet metal is to be connected with the radiating end of at least one heat pipe.
The projector that implements the sample attitude according to the present invention first comprises a housing, an image-generating unit, a lighting unit, a fan, an air outlet and a shading heat dissipating housing.This image-generating unit is located in this housing, includes at least one light valve, and is used to control the circuit of this light valve imaging.This lighting unit is located in this housing, includes a light source, and is used for the light of this light source is guided to the optical module of this imaging portion.This fan arrangement around this light source and its inlet air side be towards this light source, in order to loose to remove the heat that this light source produced.This air outlet is located on this housing and towards the air side of this fan.This shading heat dissipating housing is made up of many sheet metals, is in close proximity to this fan arrangement, goes out this air outlet in order to loose to remove the heat that this light source sent and to reduce the light scattering that this light source sends.
The projector that implements the sample attitude according to the present invention second comprises a housing, an image-generating unit, a lighting unit, one first fan, one second fan, one first air outlet, one second air outlet, one first shading heat dissipating housing, one second shading heat dissipating housing and at least one heat pipe.In this, image-generating unit is located in this housing, includes at least one light valve, and is used to control the circuit of this light valve imaging; Lighting unit is located in this housing, includes a light source, and is used for the light of this light source is guided to the optical module of this imaging portion; First fan arrangement in this light source around and its inlet air side be towards this light source, in order to the heat that this light source produced of dispelling the heat; First air outlet is located on this housing and towards the air side of this first fan; The first shading heat dissipating housing is made up of many sheet metals, is in close proximity to this first fan arrangement, goes out this first air outlet in order to loose to remove the heat that this light source sent and to reduce the light scattering that this light source sends; Second air outlet is located on this housing and away from this first air outlet; Second fan arrangement in this second air outlet around and its air side be towards this second air outlet; The second shading heat dissipating housing is made up of many sheet metals, is in close proximity to this second fan arrangement, goes out this second air outlet in order to loose to remove the heat that this light source sent and to reduce the light scattering that this light source sends; The radiating end of heat pipe is to be connected with this first and second shading heat dissipating housing, its heat absorbing end be located in this housing than thermal region.
The invention has the advantages that: the first, the manufacturing of shading heat dissipating housing does not have the misgivings of draft angle fully, so thinner thickness, and is low for the flow impedance that air-out caused, so can increase draft capacity, effectively reduces the air outlet temperature.The second, the shading heat dissipating housing is to be metal, has good coefficient of heat conductivity, and the use of collocation heat pipe can be extremely long-range with thermal conductance rapidly, so take into account the function of heat radiation and shading simultaneously.Three, the shading heat dissipating housing is to be metal material, has electromagnetic interference (EMI) (electromagnetic interference; EMI) safeguard function.
Description of drawings
Figure 1A is a partial schematic diagram, shows the light shield of an existing projector;
Figure 1B is a partial schematic diagram, shows the light shield of an existing projector;
Fig. 2 A is a partial schematic diagram, shows the shading heat dissipating housing that is used for projector of one embodiment of the invention;
Fig. 2 B is a partial schematic diagram, shows the shading heat dissipating housing that is used for projector of one embodiment of the invention;
Fig. 2 C is a partial schematic diagram, shows the shading heat dissipating housing that is used for projector of one embodiment of the invention;
Fig. 3 A is a partial schematic diagram, shows the shading heat dissipating housing that is used for projector of one embodiment of the invention;
Fig. 3 B is a partial schematic diagram, shows the shading heat dissipating housing that is used for projector of one embodiment of the invention;
Fig. 3 C is a partial schematic diagram, shows the shading heat dissipating housing that is used for projector of one embodiment of the invention;
Fig. 4 A is a partial schematic diagram, shows the shading heat dissipating housing that is used for projector of one embodiment of the invention;
Fig. 4 B is a partial schematic diagram, shows the shading heat dissipating housing that is used for projector of one embodiment of the invention;
Fig. 4 C is a partial schematic diagram, shows the shading heat dissipating housing that is used for projector of one embodiment of the invention;
Fig. 5 is a synoptic diagram, shows the projector with shading heat dissipating housing of one embodiment of the invention;
Fig. 6 A is a partial schematic diagram, shows the part of the projector with shading heat dissipating housing of another embodiment of the present invention; And
Fig. 6 B is a partial schematic diagram, shows the part of the projector with shading heat dissipating housing of further embodiment of this invention.
Embodiment
Below will do a detailed description at each embodiment of the present invention referring to Fig. 2 A to Fig. 6 B.
See also Fig. 2 A, among one first embodiment, the shading heat dissipating housing 23a that is used for projector provided by the present invention by most section shapes be by the V font and etc. the sheet metal (present embodiment employing aluminium flake) that disposes in the same way of gap formed, be in close proximity to projector light source 21 belows fan 22 and dispose.At this, the inlet air side of fan 22 is towards light source 21, removes the heat that light source 21 is produced in order to loose.
In the present embodiment, when fan 22 runnings, the hot gas that light source 21 is sent can be discharged toward the air outlet 25 on projector's housing 24 according to arrow 221 directions, and these hot gas are to derive from air outlet 25 rapidly via existing space between each sheet metal of shading heat dissipating housing 23a.In addition, because the section shape of each sheet metal is the bending that presents the V font, so the light that light source 21 is sent can not scatter out via air outlet 25.Be noted that, except section shape was the shading heat dissipating housing 23a of V font, the section shape shown in Fig. 2 B was the effect that the metallic shading heat dissipating housing 23b of arc and metallic shading heat dissipating housing 23c that the section shape shown in Fig. 2 C is in-line also can reach heat radiation and shading simultaneously.
In other words, as long as the hot gas that utilizes metal shading heat dissipating housing to cooperate fan 22 that light source 21 is discharged is derived from air outlet 25 rapidly, and utilize the bending angle of each sheet metal of shading heat dissipating housing and light that configuration allows light source 21 be sent can reach from the purpose that air outlet 25 scatters, then the section shape of each sheet metal of shading heat dissipating housing is not limited to above-mentioned three kinds.
In addition, the position relation between air outlet 25 threes also can be shown in Fig. 3 A to 3C or shown in Fig. 4 A to 4C on above-mentioned shading heat dissipating housing 23a, 23b and 23c and fan 22 and the shell 24.
In Fig. 3 A to 3C, shading heat dissipating housing 23a, 23b and 23c still are in close proximity to fan 22 configurations, what be different from Fig. 2 A to 2C is that fan 22 is between shading heat dissipating housing 23a, 23b and 23c and air outlet 25, and forms the configuration sequence of light source, shading heat dissipating housing, fan, air outlet.
In Fig. 4 A to 4C, shading heat dissipating housing 23a, 23b and 23c still are in close proximity to fan 22 configurations, and what be different from Fig. 2 A to 2C is that shading heat dissipating housing 23a, 23b and 23c combine with air outlet 25.In the case, the user can directly touch temperature higher shading heat dissipating housing 23a, 23b and 23c in the heat radiation process in order to avoid, the outermost surfaces of each sheet metal of shading heat dissipating housing 23a, 23b and 23c can be coated with last layer thermal isolation film (not shown), for example is plastic foil.
See also Fig. 5, comprise a housing 101, a projection lens 102, an image-generating unit 103, a lighting unit 104, one first fan 105, one first air outlet 106, one first shading heat dissipating housing 107, one second fan 108, one second air outlet 109 and one second shading heat dissipating housing 110 according to the projector 100 of the tool shading heat dissipating housing of one embodiment of the invention.
Image-generating unit 103 in the present embodiment is arranged on the inside of housing 101, includes at least one light valve (light valve) (not shown), and is used to control the circuit (not shown) of light valve imaging.Lighting unit 104 in the present embodiment also is arranged at the inside of housing 101, includes a light source 104a, and is used for the light of light source 104a is guided to the optical module 104b of image-generating unit 103.
In addition, be with a heat pipe 111 serial connections between the first shading heat dissipating housing 107 of present embodiment and the second shading heat dissipating housing 110, its role is to the heat that shading heat dissipating housing 107 is absorbed is conducted to shading heat dissipating housing 110 via heat pipe 111, and pass through fan 108 heat is discharged toward air outlet 109, this heat pipe 111 also has the electromagnetic interference shielding function in addition.
In the present embodiment, fan 105 also can place between shading heat dissipating housing 107 and the air outlet 106, and fan 108 also can place between shading heat dissipating housing 110 and the air outlet 109, can reach the purpose of shading heat radiation equally.
Perhaps, shading heat dissipating housing 107 also can combine with air outlet 106, and shading heat dissipating housing 110 also can combine with air outlet 109, can reach the purpose of shading heat radiation equally.In the case, the outermost surfaces of each sheet metal of shading heat dissipating housing 107 or shading heat dissipating housing 110 can be coated with the last layer thermal isolation film, for example is plastic foil.
On the other hand, the position configuration that housing 101, one first fan 105, one first air outlet 106, one first shading heat dissipating housing 107, one second fan 108, one second air outlet 109 and one second shading heat dissipating housing 110 that is comprised according to the projector 100 of the tool shading heat dissipating housing of the above embodiment of the present invention and heat pipe 111 also can be shown in Fig. 5 A and 5B.
See also Fig. 6 A, in projector according to the tool shading heat dissipating housing of another embodiment of the present invention, the first shading heat dissipating housing 107 by most section shapes be by the V font and etc. the sheet metal (present embodiment employing aluminium flake) that disposes in the same way of gap formed, be in close proximity to projector light source 104a below fan 105 and dispose, directly scatter in order to the light of avoiding light source 104a to be sent from air outlet 106a.At this, the inlet air side of fan 105 is towards light source 104a, removes the heat that light source 104a is produced in order to directly to loose.On the other hand, have more one on the projector's housing 101 in the present embodiment away from air outlet 106a and be positioned at air outlet 109a on the different sides.Air outlet 109a place disposes fan 108 and the shading heat dissipating housing 110 of an air side towards air outlet 109a.Shading heat dissipating housing 110 by most section shapes be by in-line and etc. the sheet metal (present embodiment employing aluminium flake) that disposes in the same way of gap formed, be in close proximity to fan 108 configurations, scatter from air outlet 109a in order to the light of avoiding light source 104a to be sent.Moreover the radiating end of a heat pipe 111a is to be connected with this shading heat dissipating housing 107 and 110, its heat absorbing end be located in the housing 101 than thermal region.
In the present embodiment, when fan 105 runnings, the hot gas that light source 104a is sent can be discharged toward air outlet 106a according to arrow 1051 directions, and these hot gas are to derive from air outlet 106a rapidly via existing space between each sheet metal of shading heat dissipating housing 107.On the other hand, heat pipe 111a also can discharge along arrow 1081 directions hot gas by fan 108 with the thermal conductance of a part to another shading heat dissipating housing 110 again toward air outlet 109a.In addition, because the section shape of each sheet metal is the bending that presents the V font, so the light that light source 104a is sent can not scatter out via air outlet 106a.Be noted that, except section shape was the shading heat dissipating housing 106a of V font, it was that the metallic shading heat dissipating housing 23b of arc or metallic shading heat dissipating housing 23e that the section shape shown in Fig. 2 C is in-line replace shading heat dissipating housing 106b that present embodiment also can adopt the section shape shown in Fig. 2 B.
Certainly, fan 105 herein also can place between shading heat dissipating housing 107 and the air outlet 106a, and fan 108 also can place between shading heat dissipating housing 110 and the air outlet 109a, can reach the purpose of shading heat radiation equally.
Perhaps, shading heat dissipating housing 107 also can combine with air outlet 106a, and shading heat dissipating housing 110 also can combine with air outlet 109a, can reach the purpose of shading heat radiation equally.In the case, the outermost surfaces of each sheet metal of shading heat dissipating housing 107 or shading heat dissipating housing 110 can be coated with the last layer thermal isolation film, for example is plastic foil.
See also Fig. 6 B, in projector according to the tool shading heat dissipating housing of further embodiment of this invention, the first shading heat dissipating housing 107 by most section shapes be by the V font and etc. the sheet metal (present embodiment employing aluminium flake) that disposes in the same way of gap formed, be in close proximity to projector light source 104a rear fan 105 and dispose, directly scatter in order to the light of avoiding light source 104a to be sent from air outlet 106b.At this, the inlet air side of fan 105 is towards light source 104a, removes the heat that light source 104a is produced in order to directly to loose.On the other hand, have more one on the projector's housing 101 in the present embodiment away from air outlet 106b and the air outlet 109b on same side.Air outlet 109b place disposes fan 108 and the shading heat dissipating housing 110 of an air side towards air outlet 109b.Shading heat dissipating housing 110 by most section shapes be by in-line and etc. the sheet metal (present embodiment employing aluminium flake) that disposes in the same way of gap formed, be in close proximity to fan 108 configurations.Moreover the radiating end of a heat pipe 111b is to be connected with this shading heat dissipating housing 107 and 110, its heat absorbing end be located in the housing 101 than thermal region.
In the present embodiment, when fan 105 runnings, the hot gas that light source 104a is sent can be discharged toward air outlet 106b according to arrow 1052 directions, and these hot gas are to derive from air outlet 106b rapidly via existing space between each sheet metal of shading heat dissipating housing 107.On the other hand, heat pipe 111b also can discharge along arrow 1081 directions hot gas by fan 108 with the thermal conductance of a part to another shading heat dissipating housing 110 again toward air outlet 109b.In addition, because the section shape of each sheet metal is the bending that presents the V font, so the light that light source 104a is sent can not scatter out via air outlet 106b.Be noted that, except section shape was the shading heat dissipating housing 106b of V font, it was that the metallic shading heat dissipating housing 23b of arc or metallic shading heat dissipating housing 23c that the section shape shown in Fig. 2 C is in-line replace shading heat dissipating housing 106b that present embodiment also can adopt the section shape shown in Fig. 2 B.
Certainly, fan 105 herein also can place between shading heat dissipating housing 107 and the air outlet 106b, and fan 108 also can place between shading heat dissipating housing 110 and the air outlet 109b, can reach the purpose of shading heat radiation equally.
Perhaps, shading heat dissipating housing 107 also can combine with air outlet 106b, and shading heat dissipating housing 110 also can combine with air outlet 109b, can reach the purpose of shading heat radiation equally.In the case, the outermost surfaces of each sheet metal of shading heat dissipating housing 107 or shading heat dissipating housing 110 can be coated with the last layer thermal isolation film, for example is plastic foil.
More than each embodiment the present invention has been described for solving aforementioned the problems of the prior art, be that the shading heat dissipating housing that adopts sheet metal to make replaces the light shield that the conventional plastic material is made.In the making,, therefore can do thinlyyer with increase air outlet percentage of open area because the shading heat dissipating housing that sheet metal is made there is no the problem of draft angle, and more easy on making.In addition, because therefore the heat transfer efficiency height of metal material can improve the radiating efficiency in the projector system.Again, metallic shading heat dissipating housing of the present invention also can use with the collocation of metal heat pipe, heat is directed at the lower air outlet heat radiation of remote temperature rapidly, with further reduction air outlet temperature.Moreover shading heat dissipating housing of the present invention and heat pipe are metallic, so tool electromagnetic interference shielding function.In addition, what the spy gave explanation is that above-mentioned sheet metal is not limited to aluminium flake, also can be the good metal material of other thermal conductive property.
To sum up, each embodiment of the present invention describes in detail already.Yet, have the knack of this operator when being appreciated that, each embodiment is described in this only for exemplary but not for restricted, also be, do not breaking away within connotation of the present invention and the scope, the variation example of top every assembly of addressing and correction example are the present invention and contain, and therefore, the present invention is defined by appending claims.
Claims (10)
1. shading heat dissipating housing that is used for projector, it is characterized in that: described projector has a light source, a fan and an air outlet, and described shading heat dissipating housing comprises:
Many sheet metals are to be disposed at described air outlet place, remove the heat that described light source sent in order to loose and reduce the light scattering that described light source sends to go out described air outlet.
2. the shading heat dissipating housing that is used for projector as claimed in claim 1 is characterized in that: the described section shape that waits sheet metal be selected from arc, in-line and V font one of them, and for etc. the gap dispose in the same way.
3. the shading heat dissipating housing that is used for projector as claimed in claim 1 is characterized in that: described sheet metal is to be connected with the radiating end of at least one heat pipe.
4. the shading heat dissipating housing that is used for projector as claimed in claim 1 is characterized in that: described shading heat dissipating housing is between described fan and described air outlet, or described fan is between described shading heat dissipating housing and described air outlet.
5. projector, it is characterized in that: described projector comprises:
One housing;
One image-generating unit is located in the described housing, includes at least one light valve, and is used to control the circuit of described light valve imaging;
One lighting unit is located in the described housing, includes a light source, and is used for the light of described light source is guided to the optical module of described image-generating unit;
One first fan, be disposed at described light source around and its inlet air side be towards described light source, in order to loose to remove the heat that described light source produced;
One first air outlet is located on the described housing and towards the air side of described first fan; And
One first shading heat dissipating housing is made up of many sheet metals, is in close proximity to described first fan arrangement, goes out described first air outlet in order to loose to remove the heat that described light source sent and to reduce the light scattering that described light source sends.
6. projector as claimed in claim 5 is characterized in that: the described section shape that waits sheet metal be selected from arc, in-line and V font one of them, and sheet metal such as described the gap such as is and disposes in the same way.
7. projector as claimed in claim 5 is characterized in that: the described sheet metal that waits more is connected with the radiating end of at least one heat pipe.
8. projector as claimed in claim 5 is characterized in that: the described first shading heat dissipating housing is between described first fan and described first air outlet, or described first fan is between described first shading heat dissipating housing and described first air outlet.
9. projector as claimed in claim 5 is characterized in that: described projector more comprises:
One second air outlet is located on the described housing and away from described first air outlet;
One second fan, be disposed at described second air outlet around and its air side be towards described second air outlet;
One second shading heat dissipating housing is made up of many sheet metals, is in close proximity to described second fan arrangement, goes out described second air outlet in order to loose to remove the heat that described light source sent and to reduce the light scattering that described light source sends; And
At least one heat pipe, its radiating end are to be connected with described first and second shading heat dissipating housing, its heat absorbing end be located in the described housing than thermal region.
10. projector as claimed in claim 9 is characterized in that: the described first shading heat dissipating housing is between described first fan and described first air outlet, or described first fan is between described first shading heat dissipating housing and described first air outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310101587 CN1609700A (en) | 2003-10-20 | 2003-10-20 | Projector and shading radiating cover used for projector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310101587 CN1609700A (en) | 2003-10-20 | 2003-10-20 | Projector and shading radiating cover used for projector |
Publications (1)
| Publication Number | Publication Date |
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| CN1609700A true CN1609700A (en) | 2005-04-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200310101587 Pending CN1609700A (en) | 2003-10-20 | 2003-10-20 | Projector and shading radiating cover used for projector |
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| CN (1) | CN1609700A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101498886B (en) * | 2008-01-29 | 2010-09-29 | 佳世达科技股份有限公司 | Image forming apparatus capable of regulating light shielding rate of radiating hole according to external environment brightness |
| CN1869806B (en) * | 2005-05-26 | 2010-10-27 | 索尼株式会社 | Projection type display unit |
| CN101369091B (en) * | 2007-08-17 | 2011-05-11 | 富准精密工业(深圳)有限公司 | Radiating device |
| US8025413B2 (en) | 2008-02-28 | 2011-09-27 | Hon Hai Precision Industry Co., Ltd. | Heat-dissipating structure of housing and projection device having same |
| CN109100906A (en) * | 2018-09-18 | 2018-12-28 | 晶晨半导体(上海)股份有限公司 | Inhibit the projection light machine of electromagnetic interference |
| CN110716374A (en) * | 2019-09-29 | 2020-01-21 | 深圳市火乐科技发展有限公司 | Projector with a light source |
-
2003
- 2003-10-20 CN CN 200310101587 patent/CN1609700A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1869806B (en) * | 2005-05-26 | 2010-10-27 | 索尼株式会社 | Projection type display unit |
| CN101369091B (en) * | 2007-08-17 | 2011-05-11 | 富准精密工业(深圳)有限公司 | Radiating device |
| CN101498886B (en) * | 2008-01-29 | 2010-09-29 | 佳世达科技股份有限公司 | Image forming apparatus capable of regulating light shielding rate of radiating hole according to external environment brightness |
| US8025413B2 (en) | 2008-02-28 | 2011-09-27 | Hon Hai Precision Industry Co., Ltd. | Heat-dissipating structure of housing and projection device having same |
| CN101520597B (en) * | 2008-02-28 | 2012-06-20 | 鸿富锦精密工业（深圳）有限公司 | Guide spill shield and projecting apparatus using same |
| CN109100906A (en) * | 2018-09-18 | 2018-12-28 | 晶晨半导体(上海)股份有限公司 | Inhibit the projection light machine of electromagnetic interference |
| CN110716374A (en) * | 2019-09-29 | 2020-01-21 | 深圳市火乐科技发展有限公司 | Projector with a light source |
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