CN105828054A - Projection device - Google Patents
Projection device Download PDFInfo
- Publication number
- CN105828054A CN105828054A CN201610182350.3A CN201610182350A CN105828054A CN 105828054 A CN105828054 A CN 105828054A CN 201610182350 A CN201610182350 A CN 201610182350A CN 105828054 A CN105828054 A CN 105828054A
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- CN
- China
- Prior art keywords
- supporting construction
- electronic installation
- state
- sound
- plane
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3141—Constructional details thereof
Abstract
The present invention discloses an electronic device. The electronic device is disposed on a first plane and comprises housing and a sound production device; the sound production device is arranged in the housing and does not contact with a plurality of side walls and top portion of the housing; the bottom of the housing is provided with a first support structure and a first combination part; the second bottom surfaces of the sound production device is provided with a second support structure, and the second support structure extends out of the bottom from the first combination part to match the first plane; and when the electronic device is located at a second state, there is a gap between the first bottom surface and the second bottom surface, therefore, when the sound production device generates vibration caused by sound production, the housing cannot contact with the sound production to generate resonance, the generation of noise is avoided, and the function application of the electronic device cannot be influenced.
Description
Technical field
The present invention relates to a kind of projection arrangement, particularly relate to a kind of to there is sound equipment and the projection arrangement of resonance will not be produced with the housing of projection arrangement time sound equipment plays.
Background technology
Projection arrangement is a kind of equipment on image or VIDEO PROJECTION to screen can be reached the Projection Display mode of giant-screen to provide spectator splendid presenting and visual effect.In order to increase the surcharge of projection arrangement, sound-producing device is added in the inside of projection arrangement, so that projection arrangement provides preferably audio experience while providing visual experience, i.e. it is simultaneously supplied to the audiovisual experience that user is good, improves Consumer's Experience further.
But, sound-producing device is added in projection arrangement, even if make sound-producing device not with sidewall and the top contact of housing, but owing to sound-producing device is needed housing to provide a support force by gravity, therefore sound-producing device still can inevitably contact with the bottom of housing, and the bottom of the housing of projection arrangement contacts with sound equipment, problems with can be caused: when sound-producing device is when playing sound, the vibration of sound-producing device can drive the vibration of the projection arrangement being in contact with it, i.e. projection arrangement can produce resonance with sound-producing device, cause noise or affect the display function of projection arrangement.Therefore, sound-producing device is added inside projection arrangement, need to avoid sound-producing device to produce resonance when playing with projection arrangement, it is achieved while sound-producing device provides good audio experience, the most do not affect projection arrangement normally shows picture function.
Therefore, it is necessary to design a kind of new projection arrangement, to overcome drawbacks described above.
Summary of the invention
It is an object of the invention to provide a kind of projection arrangement, by making to produce between sound-producing device and projection arrangement gap, avoid sound-producing device to produce resonance with projection arrangement because of contacting.
For reaching above-mentioned purpose, the present invention provides a kind of electronic installation, is positioned in the first plane, and this electronic installation includes:
Housing, has multiple sidewall and relative top and bottom, is provided with the first supporting construction and the first joint portion bottom this, and this first supporting construction supports this housing in this first plane, and has the first bottom surface bottom this；And
Sound-producing device, be arranged at this enclosure interior and not with the plurality of sidewall and this top contact, this sound-producing device has the second bottom surface, this second bottom surface is relative with this first bottom surface, and this second bottom surface is provided with the second supporting construction, this second supporting construction is correspondingly arranged with this first joint portion, and wherein this second supporting construction can be stretched out bottom this by this first joint portion, to match with this first plane；
Wherein, when this electronic installation is in the first state, this first bottom surface contacts with this second bottom surface；When this electronic installation is in the second state, between this first bottom surface and this second bottom surface, there is gap.
It is also preferred that the left this first supporting construction is adjustable structure, this electronic installation selectivity is made to be in this first state or this second state by adjusting this first supporting construction；Or, this second supporting construction is adjustable structure, makes this electronic installation selectivity be in this first state or this second state by adjusting this second supporting construction；Or, this first supporting construction and this second supporting construction are adjustable structure, make this electronic installation selectivity be in this first state or this second state by adjusting this first supporting construction and this second supporting construction.
Preferably, when this electronic installation is in this first state, this first supporting construction contacts this first plane, this first bottom surface contacts with this second bottom surface, this second supporting construction is all stretched out bottom this by this first joint portion, and this second supporting construction is unsettled with this first plane contact or this second supporting construction.
It is also preferred that the left when this electronic installation is in this second state, this first supporting construction and this second supporting construction all support this first plane, and this second bottom surface is higher than this first bottom surface.
It is also preferred that the left when this sound-producing device is in running order, this electronic installation is in this second state；When this sound-producing device is in off working state, this electronic installation is in this first state.
It is also preferred that the left the second supporting construction is pyramidal structure；Or at least one side that this second supporting construction is combined with this first joint portion is inclined-plane.
It is also preferred that the left this first joint portion is hole.
It is also preferred that the left this sound-producing device has at least one pair of second supporting construction, and every pair of second supporting construction is symmetricly set in this second bottom surface.
Preferably, at least one pair of first supporting construction it is provided with on this housing, this at least one pair of first supporting construction is positioned at this second bottom surface outside the orthographic projection of this first plane in the orthographic projection of this first plane, and every pair of first supporting construction is symmetricly set in bottom this of this housing.
It is also preferred that the left this electronic installation is projection arrangement.
Compared with prior art, the present invention provides a kind of electronic installation, this electronic installation is positioned in the first plane, this electronic installation includes housing and sound-producing device, this sound-producing device be arranged at this enclosure interior and not with multiple sidewalls and the top contact of this housing, the bottom of this housing has the first supporting construction and the first joint portion, it is provided with the second supporting construction on second bottom surface of this sound-producing device, this second supporting construction can be stretched out bottom this by this first joint portion, to match with this first plane, when this electronic installation is in the second state, between this first bottom surface and this second bottom surface, there is gap, so, when this sound-producing device produces vibration because of sounding, this housing will not produce resonance because contacting with this sound-producing device, and then avoid causing noise to produce, and avoid the function affecting this electronic installation to use.
Accompanying drawing explanation
The structural representation of the electronic installation 100 that Fig. 1 is proposed by the embodiment of the present invention.
Fig. 2 is the structural representation of the sound-producing device 11 of the electronic installation 100 shown in Fig. 1.
Fig. 3 is the structural representation of the bottom 103 of the housing 10 of the electronic installation 100 shown in Fig. 1.
Fig. 4 is the partial structurtes schematic diagram of the electronic installation 100 shown in Fig. 1.
The electronic installation 100 that Fig. 5 is proposed by the embodiment of the present invention A-A generalized section along Fig. 1 under the first state.
The electronic installation 100 that Fig. 6 is proposed by the embodiment of the present invention A-A generalized section along Fig. 1 under the second state.
Detailed description of the invention
For making the purpose of the present invention, structure, feature and function thereof are had further understanding, hereby embodiment is coordinated to describe in detail as follows.
See shown in Fig. 1-Fig. 6, the structural representation of the electronic installation 100 that Fig. 1 is proposed by the embodiment of the present invention, Fig. 2 is the structural representation of the sound-producing device 11 of the electronic installation 100 shown in Fig. 1, Fig. 3 is the structural representation of the bottom 103 of the housing 10 of the electronic installation 100 shown in Fig. 1, Fig. 4 is the partial structurtes schematic diagram of the electronic installation 100 shown in Fig. 1, the electronic installation 100 that Fig. 5 is proposed by the embodiment of the present invention A-A generalized section along Fig. 1 under the first state, the electronic installation 100 that Fig. 6 is proposed by the embodiment of the present invention A-A generalized section along Fig. 1 under the second state.As shown in Figures 1 to 6, electronic installation 100 of the present invention is positioned in the first plane 12.Electronic installation 100 of the present invention includes housing 10 and sound-producing device 11.Below the concrete function of each assembly of electronic installation 100 is described.It addition, for purposes of illustration only, specific justice has X-axis, Y-axis and Z axis the most perpendicular to one another, wherein X-axis, Y-axis limit the first plane 12 jointly.
Housing 10 has multiple sidewall 101 and relative top 102 and bottom 103, bottom 103 is provided with the first supporting construction 1031 and the first joint portion 1032, first supporting construction 1031 supports housing 10 in the first plane 12, and bottom 103 has the first bottom surface 1030.
Sound-producing device 11 is arranged at housing 10 inside and does not contacts with multiple sidewalls 101 and top 102, sound-producing device 11 has the second bottom surface 111, second bottom surface 111 is relative with the first bottom surface 1030, and second bottom surface 111 be provided with the second supporting construction 112, second supporting construction 112 is correspondingly arranged with the first joint portion 1032, wherein the second supporting construction 112 can stretch out bottom 103 by the first joint portion 1032, to match with the first plane 12.
Continue referring to shown in Fig. 5 and Fig. 6, electronic installation 100 has the first state and the second state, when electronic installation 100 is in the first state, first bottom surface 1030 contacts with the second bottom surface 111, i.e. when generating means 11 does not works, sound-producing device 11 can contact with housing 10, so that sound-producing device 11 is fixed on the bottom 103 of housing 10, and the function not interfering with electronic installation 100 itself uses；When electronic installation 100 is in the second state, between first bottom surface 1030 and the second bottom surface 111, there is gap 13, so, when sound-producing device 11 produces vibration because of sounding, housing 10 will not produce resonance because contacting with sound-producing device 11, and then avoids causing noise to produce, and avoids the function affecting electronic installation 100 to use, make user both can obtain the good audiovisual experience that sound-producing device 11 provides, it is also possible to obtain the good experience of the function of electronic installation 100 own.
Further, as shown in Figure 5, when electronic installation 100 is in the first state, first supporting construction 1031 contacts the first plane 12, first bottom surface 1030 contacts with the second bottom surface 111, second supporting construction 112 all stretches out bottom 103 by the first joint portion 1032, second supporting construction 112 contacts with the first plane 12 or the second supporting construction 112 is unsettled, i.e. sound-producing device 11 is supported by the first bottom surface 1030 and is made the second supporting construction 112 just contact this first plane or supported and cause the second supporting construction 112 to be maked somebody a mere figurehead, so, first bottom surface 1030 contacts with the second bottom surface 111, sound-producing device 11 is positioned on the bottom 103 of housing 10, so that sound-producing device 11 is played fixation by the bottom 103 of housing 10.
Further, as shown in Figure 6, when electronic installation 100 is in the second state, the first supporting construction 1031 and the second supporting construction 112 all support the first plane 12, and the second bottom surface 111 is higher than the first bottom surface 1030.Further, when electronic installation 100 is in the second state, second supporting construction 112 supports sound-producing device 11 in the first plane 12, and second supporting construction 112 supported by the first plane 12 and by the first joint portion 1032 part stretch out bottom 103, make the second bottom surface 111 higher than the first bottom surface 1030, so that there is gap between the first bottom surface 1030 and the second bottom surface 111, so, when sound-producing device 11 produces vibration because of sounding, housing 10 will not produce resonance because contacting with sound-producing device 11, and then avoid producing noise, and avoid the function affecting electronic installation 100 to use.
In the present embodiment, as shown in Figure 5 and Figure 6, the first supporting construction 1031 is adjustable structure, makes electronic installation 100 selectivity be in the first state or the second state by adjusting the first supporting construction 1031.Specifically, when electronic installation 100 is in this first state, by adjusting the first supporting construction 1031 to reduce the height of the first bottom surface 1030, the first bottom surface 1030 is made to be changed into this second state less than the second bottom surface 111, i.e. electronic installation 100 from this first state；When electronic installation 100 is in this second state, by adjusting the first supporting construction 1031 to improve the height of the first bottom surface 1030, make the first bottom surface 1030 contact with the second bottom surface 111 and the second supporting construction 112 just contacts the first plane 12 or unsettled, i.e. electronic installation 100 is changed into this first state from this second state.Such as, the first supporting construction 1031 is spirally connected with bottom 103, adjusts the distance between bottom 103 and the first plane 12 by rotation process the first supporting construction 1031, makes electronic installation 100 selectivity be in the first state or the second state；Or, adjust the distance between bottom 103 and the first plane 12 by drawing the first supporting construction 1031, make electronic installation 100 selectivity be in the first state or the second state.
Further, when sound-producing device 11 is in running order, electronic installation 100 is in the second state, so, when sound-producing device 11 produces vibration because of sounding, housing 10 will not produce resonance because contacting with sound-producing device 11, and then avoid causing noise to produce, and avoid affecting the function of electronic installation 100 so that user both can obtain the good audiovisual that sound-producing device 11 provides, it is also possible to obtain the good experience of the function of electronic installation 100 own.When sound-producing device 11 is in off working state, electronic installation 100 is in the first state, and sound-producing device 11 is positioned on housing 10, and housing 10 supports generating means 11, so that sound-producing device 11 is played fixation, such as, can avoid during electronic apparatus 100, sound-producing device 11 being caused damage.nullAssume，When carrying electronic installation 100，If electronic installation 100 is in this second state，So when electronic installation 100 has been removed，Because there is gap between the first bottom surface 1030 and the second bottom surface 111，First housing 10 is quickly raised relative to sound-producing device 11，Until the first bottom surface 1030 is quickly raised to contact with the second bottom surface 111，Then sound-producing device 11 is supported by housing 10 and is lifted together with housing 10，But owing to this process is the quickest，Therefore，The process that the relative sound-producing device 11 of housing 10 is raised to contact with the second bottom surface 111 is the process of a collision，And electronic installation 100 and sound-producing device 11 are all precise electronic products，This collision can damage electronic product 100 and sound-producing device 11 to a certain extent，And，When relaying lower electronic installation 100，First second supporting construction 112 of sound-producing device 11 contacts placed side，Followed by first support means 1031 contacts placed side，If this placement process is fast，Also it is electronic installation 100 and sound-producing device 11 to be caused damage.Certainly, user can also handle and slow down action with care, but relatively cumbersome, and it cannot be guaranteed that can do so every time, therefore has hidden danger, is unfavorable for the prolongation in the service life of electronic installation 100 and sound-producing device 11.
As shown in Figure 2 and Figure 5, second supporting construction 112 is pyramidal structure, and this second supporting construction 112 has the 3rd relative end 1121 and the 4th end 1122,3rd end 1121 of the second supporting construction 112 is combined with the second bottom surface 111, and the 3rd end 1121 is more than the 4th end 1122 projected area in this first plane in the projected area of this first plane.nullWherein in an embodiment，When electronic installation 100 is in the first state，3rd end 1121 coordinates with the first joint portion 1032，3rd end 1121 of the second supporting construction 112 coordinates, with the first joint portion 1032, the relative position relation defining sound-producing device 11 with housing 10，And，When electronic installation 100 changes to this second state from this first state，Electronic installation 11 only can change from this Z-direction with the relative position relation of housing 10，Will not change in this X axis and this Y-axis，First joint portion 1032 not the 3rd end 1121 with the second supporting construction 112 coordinates，And coordinate with the part between the 3rd end 1121 and the 4th end 1122 of the second supporting construction 112 or coordinate with the 4th end 1122，Owing to the part between the 3rd end 1121 and the 4th end 1122 or the 4th end 1122 of the second supporting construction 112 are less than the 3rd end 1121 projected area in the first plane 12 in the projected area of the first plane 12，Therefore，Ensure that when this second state，Second supporting construction 112 will not contact with the first joint portion 1032，Further ensure that housing 10 will not produce resonance with sound-producing device 11，But it is not limited.In other embodiments, at least one side that the second supporting construction 112 can also be designed to be combined with the first joint portion 1032 is inclined-plane, specifically by designer according to practical situation depending on, do not repeat them here.
As it is shown on figure 3, the first joint portion 1032 is hole, the second supporting construction 112 can stretch out housing 10 by this hole, but is not limited.Such as, in order to prevent dust, elastica can be covered at hole, and not affect the electronic installation 100 conversion between this first state and this second state, specifically by designer according to practical situation depending on, do not repeat them here.
Further, sound-producing device 11 has at least one pair of second supporting construction 112, and every pair of second supporting construction 112 is symmetricly set in the second bottom surface 111.In reality is applied, as shown in Figure 2, sound-producing device 11 has four the second supporting constructions 112, second bottom surface 111 has the first relative side 1111 and the second side 1112, two the second supporting constructions 112 in four the second supporting constructions 112 are at or adjacent to the first side 1111, two other second supporting construction 112 is at or adjacent to the second side 1112, with force balance and stably support sound-producing device 11.
Further, at least one pair of first supporting construction 1031 it is provided with on housing 10, at least one pair of first supporting construction 1031 is positioned at the second bottom surface 111 outside the orthographic projection of this first plane in the orthographic projection of this first plane, and every pair of first supporting construction 1031 is symmetricly set in the bottom 103 of housing 10.In the present embodiment, as shown in Figure 4, two the first supporting constructions 1031 it are provided with on housing 10, two the first supporting constructions 1031 are positioned at the second bottom surface 111 outside the orthographic projection of the first plane 12 in the orthographic projection of the first plane 12, and two the first supporting constructions 1031 are positioned at the second bottom surface 111 in the relative both sides of the orthographic projection of the first plane 12 in the orthographic projection of the first plane 12, this kind coordinates so that can be accurate by regulating the first supporting construction 1031 and/or the second supporting construction 112, realize electronic installation 100 intuitively in the conversion of this first state He this second state.
Certainly, in other embodiments, the second supporting construction 112 is adjustable structure, makes electronic installation 100 selectivity be in the first state or the second state by adjusting the second supporting construction 112.Such as, the second supporting construction 112 is spirally connected with bottom 103, adjusts the second supporting construction 112 by rotating, so that electronic installation 100 selectivity is in the first state or the second state；Or, adjust the second supporting construction 112 by drawing, make electronic installation 100 selectivity be in the first state or the second state or.Also or, first supporting construction 1031 and the second supporting construction 112 are adjustable structure, electronic installation 100 selectivity is made to be in the first state or the second state by adjusting the first supporting construction 1031 and the second supporting construction 112, specifically by designer according to practical situation depending on, do not repeat them here.
In the present embodiment, electronic installation 100 is projection arrangement, is used for projecting image, it is provided that provides preferably audio experience while visual experience, is i.e. simultaneously supplied to the audiovisual experience that user is good.
To sum up, the present invention provides a kind of electronic installation, it is positioned in the first plane, this electronic installation includes housing and sound-producing device, this sound-producing device be arranged at this enclosure interior and not with multiple sidewalls and the top contact of this housing, the bottom of this housing has the first supporting construction and the first joint portion, it is provided with the second supporting construction on second bottom surface of this sound-producing device, this second supporting construction can be stretched out bottom this by this first joint portion, to match with this first plane, when this electronic installation is in the second state, between this first bottom surface and this second bottom surface, there is gap, so, when this sound-producing device produces vibration because of sounding, this housing will not produce resonance because contacting with this sound-producing device, and then avoid causing noise to produce, and avoid the function affecting this electronic installation to use.
The present invention is been described by by above-mentioned related embodiment, but above-described embodiment is only the example implementing the present invention.It must be noted that, the embodiment disclosed is not limiting as the scope of the present invention.On the contrary, the change made without departing from the spirit and scope of the present invention and retouching, all belong to the scope of patent protection of the present invention.
Claims (10)
1. an electronic installation, is positioned in the first plane, it is characterised in that this electronic installation includes:
Housing, has multiple sidewall and relative top and bottom, is provided with the first supporting construction and the first joint portion bottom this, and this first supporting construction supports this housing in this first plane, and has the first bottom surface bottom this；And
Sound-producing device, be arranged at this enclosure interior and not with the plurality of sidewall and this top contact, this sound-producing device has the second bottom surface, this second bottom surface is relative with this first bottom surface, and this second bottom surface is provided with the second supporting construction, this second supporting construction is correspondingly arranged with this first joint portion, and wherein this second supporting construction can be stretched out bottom this by this first joint portion, to match with this first plane；
Wherein, when this electronic installation is in the first state, this first bottom surface contacts with this second bottom surface；When this electronic installation is in the second state, between this first bottom surface and this second bottom surface, there is gap.
2. electronic installation as claimed in claim 1, it is characterised in that this first supporting construction is adjustable structure, makes this electronic installation selectivity be in this first state or this second state by adjusting this first supporting construction；Or, this second supporting construction is adjustable structure, makes this electronic installation selectivity be in this first state or this second state by adjusting this second supporting construction；Or, this first supporting construction and this second supporting construction are adjustable structure, make this electronic installation selectivity be in this first state or this second state by adjusting this first supporting construction and this second supporting construction.
3. electronic installation as claimed in claim 1, it is characterized in that, when this electronic installation is in this first state, this first supporting construction contacts this first plane, this first bottom surface contacts with this second bottom surface, this second supporting construction is all stretched out bottom this by this first joint portion, and this second supporting construction is unsettled with this first plane contact or this second supporting construction.
4. electronic installation as claimed in claim 1, it is characterised in that when this electronic installation is in this second state, this first supporting construction and this second supporting construction all support this first plane, and this second bottom surface is higher than this first bottom surface.
5. electronic installation as claimed in claim 1, it is characterised in that when this sound-producing device is in running order, this electronic installation is in this second state；When this sound-producing device is in off working state, this electronic installation is in this first state.
6. electronic installation as claimed in claim 1, it is characterised in that the second supporting construction is pyramidal structure；Or at least one side that this second supporting construction is combined with this first joint portion is inclined-plane.
7. electronic installation as claimed in claim 1, it is characterised in that this first joint portion is hole.
8. electronic installation as claimed in claim 1, it is characterised in that this sound-producing device has at least one pair of second supporting construction, and every pair of second supporting construction is symmetricly set in this second bottom surface.
9. electronic installation as claimed in claim 1, it is characterized in that, at least one pair of first supporting construction it is provided with on this housing, this at least one pair of first supporting construction is positioned at this second bottom surface outside the orthographic projection of this first plane in the orthographic projection of this first plane, and every pair of first supporting construction is symmetricly set in bottom this of this housing.
10. electronic installation as claimed in claim 1, it is characterised in that this electronic installation is projection arrangement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610182350.3A CN105828054B (en) | 2016-03-28 | 2016-03-28 | Projection arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610182350.3A CN105828054B (en) | 2016-03-28 | 2016-03-28 | Projection arrangement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105828054A true CN105828054A (en) | 2016-08-03 |
| CN105828054B CN105828054B (en) | 2018-01-30 |
Family
ID=56524881
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610182350.3A Expired - Fee Related CN105828054B (en) | 2016-03-28 | 2016-03-28 | Projection arrangement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105828054B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1444090A (en) * | 2002-03-13 | 2003-09-24 | 精工爱普生株式会社 | Rear-projection projector and making method thereof |
| CN102314062A (en) * | 2010-07-06 | 2012-01-11 | 三洋电机株式会社 | Projection type image display apparatus and speaker unit |
| CN203557857U (en) * | 2013-09-29 | 2014-04-23 | 江门市得实计算机外部设备有限公司 | Low-noise printer |
| CN203882086U (en) * | 2014-04-22 | 2014-10-15 | 李锡鲲 | Film rotating projector capable of sounding |
| CN204925597U (en) * | 2015-08-25 | 2015-12-30 | 歌尔声学股份有限公司 | Projection ray apparatus device |
-
2016
- 2016-03-28 CN CN201610182350.3A patent/CN105828054B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1444090A (en) * | 2002-03-13 | 2003-09-24 | 精工爱普生株式会社 | Rear-projection projector and making method thereof |
| CN102314062A (en) * | 2010-07-06 | 2012-01-11 | 三洋电机株式会社 | Projection type image display apparatus and speaker unit |
| CN203557857U (en) * | 2013-09-29 | 2014-04-23 | 江门市得实计算机外部设备有限公司 | Low-noise printer |
| CN203882086U (en) * | 2014-04-22 | 2014-10-15 | 李锡鲲 | Film rotating projector capable of sounding |
| CN204925597U (en) * | 2015-08-25 | 2015-12-30 | 歌尔声学股份有限公司 | Projection ray apparatus device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105828054B (en) | 2018-01-30 |
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Granted publication date: 20180130 Termination date: 20200328 |