CN102375306A - Projector and use method thereof - Google Patents
Projector and use method thereof Download PDFInfo
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- CN102375306A CN102375306A CN2010102489654A CN201010248965A CN102375306A CN 102375306 A CN102375306 A CN 102375306A CN 2010102489654 A CN2010102489654 A CN 2010102489654A CN 201010248965 A CN201010248965 A CN 201010248965A CN 102375306 A CN102375306 A CN 102375306A
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Abstract
The invention relates to a projector, which comprises a body, a lamp holder connecting part and a first joint, wherein the body is used for projecting an image, and the lamp holder connecting part is used for being connected with a lamp holder and transferring electric power provided by the lamp holder to the body; and the first joint is connected between the body and the lamp holder connecting part and is used for adjusting the projection angle of the image. When the projector is used, the lamp holder connecting part is connected with the lamp holder on a ceiling so as to transfer the electric power provided by the lamp holder to the body, and the projection angle of the image is adjusted by the first joint.
Description
Technical field
The present invention is relevant a kind of projector and method of application thereof; Particularly about a kind of projector and method of application thereof with lamp socket connecting portion; To improve the problem of configuration of electric wire on the ceiling and spatial design; Also can simplify the structural design of projector and reduce manufacturing cost, make its installing and operation more convenient.
Background technology
The set-up mode of general commercially available projector; Can be divided into desktop and hanging type haply, wherein the installation of suspension type projector and mode of operation are fixedly to be hung on projector on the ceiling by the projector suspension; And the suspension type projector has a power lead; Be plugged to supply socket set on the ceiling, with the required power supply of supply projector, the suspension type projector also has a signal wire in addition; And be connected to an electronic installation (like notebook computer), with the data file that provides projector to play.
During operation, the user can be by adjustment projector suspension, and to reach the required projecting direction of projector, last image can see through camera lens and be projected on the screen.
Though the suspension type projector does not take up space than the desktop projector,, cause the restriction on configuration of electric wire on the ceiling and the spatial design because of the demand of power lead and signal wire.
Summary of the invention
In view of this, the present invention provides a kind of projector, can improve the problem of configuration of electric wire on the ceiling and spatial design, in addition, also can simplify the structural design of projector and reduce manufacturing cost, makes its installation and operation more convenient.
Projector of the present invention comprises a body, a lamp socket connecting portion and one first joint; Body is to be used to project image; The lamp socket connecting portion is used to connect a lamp socket; And the electric power that lamp socket provides is sent to body, first joint is connected between body and the lamp socket connecting portion, is used to adjust the crevice projection angle of image.
Projector of the present invention also can comprise a direct current a-c transducer, and this DC-AC converter can be arranged between body and the lamp socket connecting portion, perhaps is arranged at the inside of lamp socket connecting portion, perhaps is arranged at the inside of body.During operation, lamp socket provides an alternating current, is sent to DC-AC converter through the lamp socket connecting portion, is converted to by DC-AC converter to supply behind the direct current body to use again.
Projector of the present invention also can comprise one second joint and a catoptron; Wherein first joint is connected between the first side of lamp socket connecting portion and body; Second joint is connected between the second side of catoptron and body, and adjusts the crevice projection angle of image by first joint, second joint and catoptron.
Perhaps; Projector of the present invention also can comprise one second joint and a spectroscope; Wherein first joint is connected between the first side of lamp socket connecting portion and body; Second joint is connected between the second side of spectroscope and body, and adjusts the crevice projection angle of image by first joint, second joint and spectroscope.
Projector of the present invention also can comprise a receiver, is used to receive a wireless signal, and makes body project corresponding image.
Projector of the present invention can be provided with a USB slot and/or a memory card slot on the surface of body.
Projector of the present invention also can comprise a stretching structure, is connected between said first joint and the said lamp socket connecting portion.
Projector of the present invention also can comprise a direct current a-c transducer, and this DC-AC converter can be arranged at the inside of stretching structure.During operation, lamp socket provides an alternating current, is sent to DC-AC converter through the lamp socket connecting portion, is converted to by DC-AC converter to supply behind the direct current body to use again.
Projector of the present invention also can comprise a slide rail road, is arranged between first joint and the stretching structure, and first joint can be slided with respect to stretching structure.
During use, the lamp socket connecting portion of projector is connected in the lamp socket on the ceiling, is sent to body, adjust the crevice projection angle of image through first joint with the electric power that lamp socket is provided.
Description of drawings
Fig. 1 shows first embodiment of the present invention synoptic diagram.
Fig. 2 A shows second embodiment of the present invention synoptic diagram.
Fig. 2 B shows the partial enlarged drawing of Fig. 2 A of the present invention.
Fig. 3 shows third embodiment of the present invention synoptic diagram.
Fig. 4 shows fourth embodiment of the present invention synoptic diagram.
Fig. 5 A shows the front elevation of the lamp socket connecting portion that the present invention is multi-form.
Fig. 5 B is the backplan of Fig. 5 A.
Fig. 6 A shows the front elevation of another multi-form connecting portion of the present invention.
Fig. 6 B is the backplan of Fig. 6 A.
Fig. 7 shows fifth embodiment of the present invention synoptic diagram.
Fig. 8 shows sixth embodiment of the present invention synoptic diagram.
Embodiment
Set up on the ceiling and be equipped with various light fixtures such as bulb type or lamp tube type, be used to provide illumination.Projector of the present invention can be installed in the various light fixture, and its electric power that utilizes light fixture to provide operates.Beneath first embodiment to the, four embodiment are applicable to the bulb type light fixture, and the 5th embodiment to the six embodiment then are applicable to the lamp tube type light fixture.Detailed as following:
Fig. 1 is the synoptic diagram according to the projector of first embodiment of the invention, and is as shown in the figure, and it has a body 101; Set inside at body 101 has a receiver 102, is used to receive wireless signal, and this wireless signal is (for example to be mobile phone by the electronic installation with wireless launcher; Notebook computer; DVD player, personal digital assistant PDA or radiotelevision etc.) institute launches, to provide projector 10 required Data Source.
This body 101 has a USB (USB) slot 103 and a memory card slot 104 (for example being the Memory Stick memory card slot of CF card, SD card, SM card, mmc card or company of Sony (Sony)) simultaneously; So the carry-on data disks or the memory card that also can easy to usely carry are with the data file that provides projector 10 to play.
Above body 101, be provided with one first joint 105 (for example being ball-and-socket joint (ball-and-socket joint)); Through first joint 105; Projector 10 can possess the adjustment function of vertical direction and horizontal direction simultaneously, with correct being projected on screen or other projection plane of image.
The top of first joint 105 is provided with a direct current a-c transducer 106 and a lamp socket connecting portion 107; Projector 10 of the present invention mainly is to utilize lamp socket connecting portion 107 to be plugged on the lamp socket; And be electrically connected with lamp socket; Wherein this lamp socket is the lamp socket (not shown) of the bulb of operated by rotary motion on ceiling, so with this connected mode, can projector 10 fixedly be suspended on the ceiling.
Moreover; By being electrically connected between the lamp socket of lamp socket connecting portion 107 and bulb; Make lamp socket connecting portion 107 can obtain the AC power that lamp socket provides, and then see through the DC-AC converter 106 be arranged at lamp socket connecting portion 107 belows, the AC power that lamp socket connecting portion 107 is received; Convert the direct supply that projector 10 is suitable for into, required power source when using as projector 10.
As stated; The installation of projector 10 of the present invention and mode of operation are that lamp socket connecting portion 107 is pegged graft and is electrically connected on the lamp socket of bulb of ceiling; The AC power of utilizing lamp socket to provide converts the required direct supply of projector 10 operations into via DC-AC converter 106; Receive the wireless signal of launching from the wireless launcher of external electronic by receiver 102,, also can directly see through USB slot 103 or memory card slot 104, read the data file in carry-on data disks or the memory card to obtain the data file that to play; When projects images, the user can adjust the projecting direction of projector through first joint 105, and image correctly is projected on screen or other projection plane.
Fig. 2 A is the synoptic diagram according to the projector of second embodiment of the invention, and is as shown in the figure, and it has a body 201; Set inside at body 201 has a receiver 202, is used to receive wireless signal, and this wireless signal is (for example to be mobile phone by the electronic installation with wireless launcher; Notebook computer; DVD player, personal digital assistant PDA or radiotelevision etc.) institute launches, to provide projector 20 required Data Source.
This body 201 has a USB slot 203 and a memory card slot 204 (for example being the Memory Stick memory card slot of CF card, SD card, SM card, mmc card or Sony company) simultaneously; So the carry-on data disks or the memory card that also can easy to usely carry are with the data file that provides projector 20 to play.
Above body 201, be provided with one first joint 205 (for example being ball-and-socket joint (ball-and-socket joint)); Through first joint 205; Projector 20 can possess the adjustment function of vertical direction and horizontal direction simultaneously, with correct being projected on screen or other projection plane of image.
The top of first joint 205 is provided with a lamp socket connecting portion 207; Projector 20 of the present invention mainly is to utilize lamp socket connecting portion 207 to be plugged on the lamp socket; And electrically connect with lamp socket; Wherein this lamp socket is the lamp socket (not shown) of the bulb of operated by rotary motion on ceiling, so through this connected mode, can projector 20 fixedly be suspended on the ceiling.
The present embodiment and first embodiment do not exist together, and are that mainly present embodiment is arranged at the inside of connecting portion 207 with DC-AC converter 206 (shown in 2B figure), the space that occupies with minimizing.
The AC power that DC-AC converter 206 can be received with lamp socket connecting portion 207 during operation converts the direct supply that projector 20 is suitable for into, required power source when using as projector 20.
As stated; The installing of projector 20 of the present invention and mode of operation are that lamp socket connecting portion 207 is pegged graft and is electrically connected on the lamp socket of bulb of ceiling; The AC power of utilizing lamp socket to provide converts the required direct supply of projector 20 operations into via DC-AC converter 206; Receive the wireless signal of launching from the wireless launcher of electronic installation by receiver 202,, also can directly see through USB slot 203 or memory card slot 204, read the data file in carry-on data disks or the memory card to obtain the data file that desire is play; When projects images, the user can be adjusted the projecting direction of projector by first joint 205, and with correct being projected on the screen of image.
Fig. 3 is the synoptic diagram according to the projector of third embodiment of the invention, and is as shown in the figure, and it has a body 301; Set inside at body 301 has a receiver 302, is used to receive wireless signal, and this wireless signal is (for example to be mobile phone by the electronic installation with wireless launcher; Notebook computer; DVD player, personal digital assistant PDA or radiotelevision etc.) institute launches, to provide projector 30 required Data Source.
This body 301 has a USB slot 303 and a memory card slot 304 (for example being CF card, SD card, SM card, mmc card or and the Memory Stick memory card slot of Sony company) simultaneously; So the carry-on data disks or the memory card that also can easy to usely carry are with the data file that provides projector 30 desires to play.
Above body 301, be provided with one first joint 305 (for example being ball-and-socket joint (ball-and-socket joint)); Through first joint 305; Projector 30 can possess the adjustment function of vertical direction and horizontal direction simultaneously, with correct being projected on screen or other projection plane of image.
The top of first joint 305 is provided with a lamp socket connecting portion 307; Projector 30 of the present invention mainly is to utilize lamp socket connecting portion 307 to be plugged on the lamp socket; And electrically connect with lamp socket; Wherein this lamp socket is the lamp socket (not shown) of the bulb of operated by rotary motion on ceiling, so through this connected mode, can projector 30 fixedly be suspended on the ceiling.
Present embodiment and previous embodiment do not exist together, and are that mainly present embodiment is arranged on the inside of body 301 with DC-AC converter 306, can reduce the space that occupies equally.
DC-AC converter 306 during operation, and AC power that can lamp socket connecting portion 307 is received converts the direct supply that projector 30 is suitable for into, required power source when using as projector 30.
Fig. 4 is the synoptic diagram according to the projector of fourth embodiment of the invention, and is as shown in the figure, and it has a body 401; Set inside at body 401 has a receiver 402, is used to receive wireless signal, and this wireless signal is (for example to be mobile phone by the electronic installation with wireless launcher; Notebook computer; DVD player, personal digital assistant PDA or radiotelevision etc.) institute launches, to provide projector 40 required Data Source.
This body 401 has a USB slot 403 and a memory card slot 404 (for example being the Memory Stick memory card slot of CF card, SD card, SM card, mmc card or Sony company) simultaneously; So the carry-on data disks or the memory card that also can easy to usely carry are with the data file that provides projector 40 desires to play.
401a is provided with one first joint 405 (for example being ball-and-socket joint (ball-and-socketjoint)) in the first side of body 401, and by first joint 405, body 401 can possess the adjustment function of vertical direction and horizontal direction simultaneously; The 401b in the second side of body 401 in addition; Be provided with one second joint 408 (for example being ball-and-socket joint (ball-and-socket joint)); And second joint 408 more is connected with a catoptron 409, so catoptron 409 can possess the adjustment function of vertical direction and horizontal direction equally.See through the mutual collocation of first joint 405 and second joint 408, projector 40 can have the set-up mode of more diversification, with the demand in response to various different occasions.
The top of first joint 405 is provided with a direct current a-c transducer 406 and a lamp socket connecting portion 407; Projector 40 of the present invention mainly is to utilize lamp socket connecting portion 407 to be plugged on (not shown) on the lamp socket; And electrically connect with lamp socket; Wherein this lamp socket is the lamp socket of the bulb of operated by rotary motion on ceiling, so through this connected mode, can projector 40 fixedly be suspended on the ceiling.
In the present embodiment, projector 40 not only has the described each item advantage of first embodiment, more because of increasing the setting of second joint 408 and catoptron 409, makes it can be corresponding to the needed crevice projection angle of various varying environments, as using widely.
Can recognize that catoptron 409 also can be used spherical reflector or non-spherical reflector instead according to circumstances except plane mirror shown in Figure 4, even change optical elements such as spectroscope into, and on the guiding screen or other projection plane that image is correct.
In addition, the lamp socket connecting portion 107,207,307,407 described in above-mentioned each embodiment also can be designed to different form (shown in Fig. 5 A, 5B and Fig. 6 A, 6B), and projector of the present invention can be installed and corresponding on the various multi-form lamp sockets.
Fig. 7 is the synoptic diagram according to the projector of fifth embodiment of the invention, and is as shown in the figure, and it has a body 501; Set inside at body 501 has a receiver 502, is used to receive wireless signal, and this wireless signal is (for example to be mobile phone by the electronic installation with wireless launcher; Notebook computer; DVD player, personal digital assistant PDA or radiotelevision etc.) institute launches, to provide projector 50 required Data Source.
This body 501 has a USB (USB) slot 503 and a memory card slot 504 (for example being the Memory Stick memory card slot of CF card, SD card, SM card, mmc card or company of Sony (Sony)) simultaneously; So the carry-on data disks or the memory card that also can easy to usely carry are with the data file that provides projector 50 to play.
Above body 501, be provided with one first joint 505 (for example being ball-and-socket joint (ball-and-socket joint)); Through first joint 505; Projector 50 can possess the adjustment function of vertical direction and horizontal direction simultaneously, with correct being projected on screen or other projection plane of image.
First joint, 505 tops are provided with a stretching structure 510; This stretching structure 510 is a kind of structures that can adjust length according to operating position; Foot rest or the umbrella umbrella frame etc. that are common in foot rest, the video camera of (for example) camera are located; For general visible known techniques, so do not describe its detailed construction at this.
Stretching structure 510 both ends are provided with a lamp socket connecting portion 507 respectively; The present invention's projector 50 main systems utilize lamp socket connecting portion 507 to be plugged on the lamp socket; And electrically connect with lamp socket; Wherein this lamp socket is the lamp socket (not shown) of the lamp tube type of operated by rotary motion on ceiling, so by this connected mode, can projector 50 fixedly be suspended on the ceiling.
Moreover; By the electric connection between the lamp socket of lamp socket connecting portion 507 and lamp tube type; Make lamp socket connecting portion 507 can obtain the AC power that lamp socket provides, and then see through the DC-AC converter 506 be arranged at stretching structure 510 inside, the AC power that lamp socket connecting portion 507 is received; Convert the direct supply that projector 50 is suitable for into, required power source when using as projector 50.
As stated; The installing of the present invention's projector 50 and mode of operation are to utilize the expansion performance of stretching structure 510 earlier; Adjust the length of the lamp socket that is applicable to lamp tube type; Lamp socket connecting portion 507 is pegged graft again and be electrically connected on the lamp tube type lamp socket of ceiling, the AC power of utilizing lamp socket to provide converts projector 50 into via DC-AC converter 506 and operates required direct supply; Receive the wireless signal of launching from the wireless launcher of external electronic by receiver 502,, also can directly see through USB slot 503 or memory card slot 504, read the data file in carry-on data disks or the memory card to obtain the data file that to play; When projects images, the user can adjust the projecting direction of projector through first joint 505, and image correctly is projected on screen or other projection plane.
Fig. 8 is the synoptic diagram according to the projector of sixth embodiment of the invention, and is as shown in the figure, and it has a body 601; Set inside at body 601 has a receiver 602, is used to receive wireless signal, and this wireless signal system (for example is mobile phone by the electronic installation with wireless launcher; Notebook computer; DVD player, personal digital assistant PDA or radiotelevision etc.) institute launches, to provide projector 60 required Data Source.
This body 601 has a USB (USB) slot 603 and a memory card slot 604 (for example being the MemoryStick memory card slot of CF card, SD card, SM card, mmc card or company of Sony (Sony)) simultaneously; So the carry-on data disks or the memory card that also can easy to usely carry are with the data file that provides projector 60 to play.
Above body 601, be provided with one first joint 605 (for example being ball-and-socket joint ball-and-socketjoint); Through first joint 605; Projector 60 can possess the angular setting function of vertical direction and horizontal direction simultaneously, with correct being projected on screen or other projection plane of image.
First joint, 605 tops are provided with a stretching structure 610, and this stretching structure 610 is identical with the 5th embodiment, so do not describe at this.
Stretching structure 610 set inside have a direct current a-c transducer 606; And stretching structure 610 both ends are provided with a lamp socket connecting portion 607 respectively; Projector 60 of the present invention mainly is to utilize lamp socket connecting portion 607 to be plugged on the lamp socket, and electrically connects with lamp socket, and wherein this lamp socket is the lamp socket (not shown) of the lamp tube type of operated by rotary motion on ceiling; So, can projector 60 fixedly be suspended on the ceiling with this connected mode.
Present embodiment and the 5th embodiment do not exist together; Be that mainly present embodiment is provided with a slide rail road 611 between first joint 605 and stretching structure 610; Slide rail road 611 is linked in stretching structure 610, and first joint 605 is to be embedded in the slide rail road 611, and it can be slided in slide rail road 611; To regulate the distance between projector 60 and screen or other projection plane, obtain the appropriate image size.
The AC power that DC-AC converter 606 can be received with lamp socket connecting portion 607 during operation converts the direct supply that projector 60 is suitable for into, required power source when using as projector 60.
As stated; The installing of projector 60 of the present invention and mode of operation are to utilize the expansion performance of stretching structure 610 earlier; Adjust the length of the lamp socket that is applicable to lamp tube type; Lamp socket connecting portion 607 is pegged graft again and be electrically connected on the lamp socket of lamp tube type of ceiling, the AC power of utilizing lamp socket to provide converts the required direct supply of projector 60 operations into via DC-AC converter 606; Receive the wireless signal of launching from the wireless launcher of external electronic by receiver 602,, also can directly see through USB slot 603 or memory card slot 604, read the data file in carry-on data disks or the memory card to obtain the data file that to play; When projects images, the user can adjust the projecting direction of projector through first joint 605, and utilizes slide rail road 611 to adjust the distance between projector and screen or other projection plane, and with correct being projected on screen or other projection plane of image.
Though the present invention discloses as above with preferred embodiment; Yet it is not in order to limit the present invention; Has common knowledge the knowledgeable in any its affiliated technical field; Do not breaking away from the spirit and scope of the present invention, also can do change arbitrarily and retouching, so protection scope of the present invention is being as the criterion when looking appended the claim scope person of defining.
[main element symbol description]
Embodiments of the invention
10,20,30～projector
101,201,301～body
102,202,302～receiver
103,203,303～USB slot
104,204,304～memory card slot
105,205,305～the first joints
106,206,306～DC-AC converter
107,207,307～lamp socket connecting portion
40～projector
401～body
401a～first side
401b～second side
402～receiver
403～USB slot
404～memory card slot
405～the first joints
406～DC-AC converter
407～lamp socket connecting portion
408～the second joints
409～catoptron
50,60～projector
501,601～body
502,602～receiver
503,603～USB slot
504,604～memory card slot
505,605～the first joints
506,606～DC-AC converter
507,607～lamp socket connecting portion
510,610～stretching structure
611～slide rail road
Claims (13)
1. projector comprises:
One body is used to project image;
One lamp socket connecting portion is used to connect a lamp socket, and the electric power that this lamp socket is provided is sent to this body; And
One first joint is connected between said body and the said lamp socket connecting portion, is used to adjust the crevice projection angle of said image.
2. projector as claimed in claim 1; It also comprises a direct current a-c transducer; Be arranged between said body and the said lamp socket connecting portion; Said lamp socket provides an alternating current, is sent to said DC-AC converter through said lamp socket connecting portion, is converted to by said DC-AC converter to supply behind the direct current said body to use again.
3. projector as claimed in claim 1; It also comprises a direct current a-c transducer; Be arranged at the inside of said lamp socket connecting portion; Said lamp socket provides an alternating current, is sent to said DC-AC converter through said lamp socket connecting portion, is converted to by said DC-AC converter to supply behind the direct current said body to use again.
4. projector as claimed in claim 1; It also comprises a direct current a-c transducer; Be arranged at the inside of said body; Said lamp socket provides an alternating current, is sent to said DC-AC converter through said lamp socket connecting portion, is converted to by said DC-AC converter to supply behind the direct current said body to use again.
5. projector as claimed in claim 1; It also comprises one second joint and a catoptron; This first joint is connected between the first side of said lamp socket connecting portion and said body; This second joint is connected between the second side of said catoptron and said body, and adjusts the crevice projection angle of said image through this first joint, this second joint and this catoptron.
6. projector as claimed in claim 1; It also comprises one second joint and a spectroscope; This first joint is connected between the first side of said lamp socket connecting portion and said body; This second joint is connected between the second side of said catoptron and said body, and adjusts the crevice projection angle of said image through this first joint, this second joint and this spectroscope.
7. projector as claimed in claim 1, it also comprises a receiver, is used to receive a wireless signal, and makes said body project corresponding image.
8. projector as claimed in claim 1, wherein, said body has a USB slot, is arranged on the surface of said body.
9. projector as claimed in claim 1, wherein, said body has a memory card slot, is arranged on the surface of said body.
10. projector as claimed in claim 1, it also comprises a stretching structure, is connected in said first joint and said
Between the lamp socket connecting portion.
11. projector as claimed in claim 10; It also comprises a direct current a-c transducer; Be arranged at the inside of said stretching structure; Said lamp socket provides an alternating current, is sent to said DC-AC converter through said lamp socket connecting portion, is converted to by said DC-AC converter to supply behind the direct current said body to use again.
12. projector as claimed in claim 10, it also comprises a slide rail road, is arranged between said first joint and the said stretching structure, and said first joint can be slided with respect to said stretching structure.
13. the method for application of a projector comprises:
One projector as claimed in claim 1 is provided;
The lamp socket connecting portion of said projector is connected in the lamp socket on the ceiling, is sent to said body with the electric power that said lamp socket is provided; And
Adjust the crevice projection angle of said image through said first joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010248965.4A CN102375306B (en) | 2010-08-05 | 2010-08-05 | Projector and using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010248965.4A CN102375306B (en) | 2010-08-05 | 2010-08-05 | Projector and using method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102375306A true CN102375306A (en) | 2012-03-14 |
| CN102375306B CN102375306B (en) | 2016-08-10 |
Family
ID=45794120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010248965.4A Expired - Fee Related CN102375306B (en) | 2010-08-05 | 2010-08-05 | Projector and using method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102375306B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107229177A (en) * | 2016-03-24 | 2017-10-03 | 精工爱普生株式会社 | Projecting apparatus |
| CN113827015A (en) * | 2020-06-23 | 2021-12-24 | 福建润邦智能科技有限公司 | Wisdom education system is with portable multimedia speech equipment |
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| JP2004013043A (en) * | 2002-06-11 | 2004-01-15 | Nec Viewtechnology Ltd | Projector-mounting device |
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| CN2872410Y (en) * | 2005-12-16 | 2007-02-21 | 黄明华 | Improved cradle structure of projector |
| CN101071254A (en) * | 2006-05-12 | 2007-11-14 | 中强光电股份有限公司 | Projection device |
| CN101539715A (en) * | 2008-03-19 | 2009-09-23 | 精工爱普生株式会社 | Projector and reflection apparatus |
| TW201024900A (en) * | 2008-12-31 | 2010-07-01 | Zyxel Communications Corp | Wireless projection device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07264527A (en) * | 1994-03-17 | 1995-10-13 | Hitachi Ltd | Liquid crystal projector |
| JPH113045A (en) * | 1997-06-10 | 1999-01-06 | Victor Co Of Japan Ltd | Projection type display device |
| JP2004013043A (en) * | 2002-06-11 | 2004-01-15 | Nec Viewtechnology Ltd | Projector-mounting device |
| JP2004184768A (en) * | 2002-12-04 | 2004-07-02 | Kanebo Ltd | Projector device |
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| CN2872410Y (en) * | 2005-12-16 | 2007-02-21 | 黄明华 | Improved cradle structure of projector |
| CN101071254A (en) * | 2006-05-12 | 2007-11-14 | 中强光电股份有限公司 | Projection device |
| CN101539715A (en) * | 2008-03-19 | 2009-09-23 | 精工爱普生株式会社 | Projector and reflection apparatus |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107229177A (en) * | 2016-03-24 | 2017-10-03 | 精工爱普生株式会社 | Projecting apparatus |
| CN107229177B (en) * | 2016-03-24 | 2021-04-20 | 精工爱普生株式会社 | Projector with a light source |
| CN113827015A (en) * | 2020-06-23 | 2021-12-24 | 福建润邦智能科技有限公司 | Wisdom education system is with portable multimedia speech equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102375306B (en) | 2016-08-10 |
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