CN101216661B - Projection device and system - Google Patents

Projection device and system Download PDF

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Publication number
CN101216661B
CN101216661B CN2007100001201A CN200710000120A CN101216661B CN 101216661 B CN101216661 B CN 101216661B CN 2007100001201 A CN2007100001201 A CN 2007100001201A CN 200710000120 A CN200710000120 A CN 200710000120A CN 101216661 B CN101216661 B CN 101216661B
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CN
China
Prior art keywords
screen
display frame
horizontal level
user
signal
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Expired - Fee Related
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CN2007100001201A
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Chinese (zh)
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CN101216661A (en
Inventor
苏紫薇
郭文杰
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Delta Electronics Inc
Delta Optoelectronics Inc
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Delta Optoelectronics Inc
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Priority to CN2007100001201A priority Critical patent/CN101216661B/en
Publication of CN101216661A publication Critical patent/CN101216661A/en
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Abstract

A sensor senses the horizontal position of a user in front of a screen, and sends horizontal signals. A projection device comprises a receiver, a processor and an image projector; wherein the receiver receives the horizontal signals, the processor generates on-screen display (OSD) according to the horizontal signals and overlays the OSD on a projected image, and the image projector projects the overlaid image onto a screen; at the time of projection, the OSD covers a user's face.

Description

Projection arrangement and system
Technical field
The present invention relates to a kind of projection arrangement and comprise the optical projection system of this projection arrangement; Be particularly related to a kind of produce cover picture to the bulletin person on one's body projection arrangement and comprise the optical projection system of this projection arrangement.
Background technology
Along with the diverse development of society, interpersonal expression is linked up more and more important, and for example, the educational training of enterprises, user meeting, official documents and correspondence are delivered, or activities such as the description of product of enterprise outside, speech.In order to allow the participant more go deep into subject under discussion, to allow the publisher clearlyer express thoughts, often need in the activity to use projection arrangement, so that presenting of information is more convenient, increase work efficiency with this.Yet, when the bulletin person stands in the place ahead of projection screen and during towards projection arrangement, the shadow that projection arrangement throwed can mirror bulletin person's eye, the person's that influences the bulletin vision.
The 6th, 361, No. 173 United States Patent (USP) has disclosed a kind of disappearing of projector gorgeous (matte) signal method that is used for.This method is shone even infrared light sources to screen earlier, projection is desired display image in projection screen, re-use the picture element signal position standard on the infrared ray sensing video camera monitoring picked-up screen, store also and will know that the pixel position standard of the screen area of demonstration is defined as 0, therefore just can pick out pixel position standard and be not 0 bulletin person contour area.Then suppress this regional signal level, with the reduction person's that is projected to the bulletin signal of video signal intensity.Yet the influence that this practice is changed by the room lighting degree easily for example is subjected to the influence of the situation of illumination changes such as door window, light, and the method just can't produce the gorgeous signal that disappears.
The 6th, 789, No. 903 United States Patent (USP) provides another kind of method, by an infrared ray projector with invisible light wavelength light, pattern is incident upon on the screen.Be arranged on the other infrared ray sensing video camera of projector, observe this projection pattern and storage, in order to produce with reference to picture frame.Then send this to projector with reference to picture frame.This moment, the bulletin person stood in screen the place ahead, this projection pattern is throwed once more on screen by projector, and video camera stores the projection pattern of this moment once more, and with from the signal of reference picture frame gained both differences relatively, determining the contour area of bulletin person figure, and this information is offered projector.When projection, the image that projector suppresses this contour area produces.But the method operational method is too complicated, causes the burden of projector's internal processor, and moreover, the method also needs a video camera to be used for sensing and to produce signal, not only makes mechanism of action more complicated, also significantly raises the cost, and does not meet the market expectation.
In sum, improve projector's be projected to bulletin person's method or influence that is subject to throw light at present, or too complicated and increase system cost, neither demand of closing in the user.Therefore, providing a kind of person's that can avoid the bulletin eyes to be subjected to projection image's irradiation, with low cost, the easy projection arrangement of system's computing, is the target that industry still need make great efforts to solve.
Summary of the invention
Purpose of the present invention is to provide a kind of projection arrangement, and order uses the bulletin person of this projection arrangement not to be subjected to projection image to shine interference in eyes.The framework of this projection arrangement is simple, do not need to handle through complex calculation, and with low cost.
For reaching above-mentioned purpose, projection arrangement is connected to outside sensor, this outside sensor sensing user before screen horizontal level and send the horizontal level signal, projection arrangement is then in order to produce first display frame.This projection arrangement comprises receiver, processor and the picture projector.Receiver receives the horizontal level signal.Processor produces second display frame according to the horizontal level signal and is superimposed in this first display frame.Picture after the picture projector will superpose is projected to screen, and after the projection, second display frame just is covered on user's the body.
Another purpose of the present invention is to provide a kind of optical projection system, and this optical projection system comprises above-mentioned sensor and projection arrangement.
Behind the embodiment of reference accompanying drawing and description subsequently, the person of ordinary skill in the field just can understand other purposes of the present invention, and technological means of the present invention and embodiment.
Description of drawings
Fig. 1 is the optical projection system synoptic diagram of the first embodiment of the present invention;
Fig. 2 is the optical projection system block scheme of the first embodiment of the present invention;
Fig. 3 a is the optical projection system synoptic diagram of first embodiment of the present invention another way;
Fig. 3 b is the optical projection system synoptic diagram of first embodiment of the present invention another way;
Fig. 3 c is the optical projection system synoptic diagram of first embodiment of the present invention another way;
Fig. 4 is the optical projection system synoptic diagram of the second embodiment of the present invention; And
Fig. 5 is the optical projection system block scheme of the second embodiment of the present invention.
The main element description of symbols
1: optical projection system 4: optical projection system
10: the user 40: the user
11: 41: the first sensors of sensor
110: horizontal level signal 410: the horizontal level signal
111: infrared ray sensing element 42: on-screen displays
113: 43: the second sensors of arithmetic element
115: infrared ray conveying element 430: vertical position signal
12: screen 44: projected picture
13: projection arrangement 45: projection arrangement
131: receiver 451: receiver
133: processor 453: processor
135: the picture projector 455: the picture projector
14: on-screen displays 47: screen
16: projected picture
Embodiment
The first embodiment of the present invention such as Fig. 1 and shown in Figure 2 are a kind of optical projection system 1, and this optical projection system 1 comprises sensor 11 and projection arrangement 13, and both carry out the transmission of signal.In this embodiment, the transmission of signal is carried out with the infrared transmission in the wireless mode.In other embodiments, also can use radio signal, ultrasonic signal and other wireless signals to transmit; In addition, sensor 11 and projection arrangement 13 also can be the transmission of wired electronic signal, for example connect with transmission line or optical fiber, the signal that sensor produced just thus transmission line or Optical Fiber Transmission to projection arrangement.
Sensor 11 is installed in screen 12 belows, in order to the horizontal level of sensing user 10 before screen 12, and send horizontal level signal 110 to projection arrangement 13 according to this horizontal level, horizontal level signal 110 is a wireless signal, particularly, be infrared signal.As shown in Figure 2, sensor 11 is the infrared ray sensing apparatus, and it comprises a plurality of infrared ray sensing elements 111, arithmetic element 113 and infrared ray conveying element 115.Infrared ray sensing element 111 is evenly distributed in screen 12 belows (being the round dot of sensor 11 among Fig. 1).With 72 cun screens is example, and its wide and height are about 1.5 meters and 1.1 meters respectively, and 11 infrared ray sensing elements 111 just are layed in screen 12 lower boundaries with 0.15 meter spacing.Before these infrared ray sensing element 111 monitoring screens 12 whether object blocks is arranged, and will stop that information sends arithmetic element 113 to, stopping before on behalf of sensor 11, information whether sense screen 12 has people or the thing that stops image.When in case user 10 stands on screen 12 preceding reports, having partly, 111 monitorings of infrared ray sensing element are stopped, arithmetic element 113 just is converted to user 10 horizontal position information according to this, transfer to infrared ray conveying element 115 and send out infrared signal to projection arrangement 13 with fixed frequency (for example per 0.5 second), above-mentioned infrared signal is horizontal level signal 110 just.
Projection arrangement 13 is in order to produce first display frame, and this first display frame is projected picture.Projection arrangement 13 comprises receiver 131, processor 133 and the picture projector 135.After receiver 131 receives horizontal level signal 110 with wireless mode, just 110 computings produce second display frame to processor 133 according to the horizontal level signal, in this embodiment, second display frame is on-screen displays (On Screen Display, OSD) 14, make this on-screen displays 14 can project the horizontal level at user 10 places, and, on-screen displays 14 is superimposed on the projected picture 16 according to the default upright position (such as upper limb of screen 12) of on-screen displays 14 after being projected to screen 12.
The picture projector 135 is an optical projection apparatus, the projection picture 16 after the stack can be projected to screen 12, makes on the projected picture 16 in the upright position of the upper limb of the horizontal level at user 10 places and screen 12 to have on-screen displays 14.
Before beginning report, user 10 adjusts upright position after on-screen displays 14 is projected to this screen 12 by controller, be adjusted to the upright position that does not influence user's 10 visions, just approximately cover the position of user 10 faces, this controller can be telepilot, in order to send wireless vertical position signal.Be noted that at this, the upright position that above-mentioned screen display picture 14 is projected on the screen 12 is promptly fixing after adjusting, in addition, vertical position signal also is an infrared signal, and on-screen displays 14 is dark (being preferably black) picture, after projection, be able to cover user 10 full face or part above the waist, so its shape is regardless of.
During adjustment, receiver 131 also receives this vertical position signal with wireless mode, processor 133 produces on-screen displays 14 according to horizontal level signal 110 and vertical position signal simultaneously, and on-screen displays 14 is superimposed on the projected picture 16 again, the projection picture 16 after the final picture projector 135 will superpose is projected to screen 12.
Because the infrared ray conveying element 115 of sensor 11 is sent out infrared signal to projection arrangement 13 with fixed frequency, so when user 10 changes its horizontal level, horizontal level signal 110 also can be according to horizontal level and is different, make on-screen displays 14 to move, allow user 10 be more convenient for reporting conference content along with user 10 horizontal level.
On the upper limb (infrared ray sensing element 111 toward the special angle that has a down dip to aim at user 10), user 10 that above-mentioned sensor 11 also can be installed in screen 12 and the ground of 13 of projection arrangements (infrared ray sensing element 111 past screen 12 direction inclination special angles are to aim at user 10), or on the ceiling of user 10 and 13 of projection arrangements (infrared ray sensing element 111 is toward having a down dip special angle to aim at user 10), respectively shown in Fig. 3 a, Fig. 3 b and Fig. 3 c.
The second embodiment of the present invention such as Fig. 4 and shown in Figure 5, it also is optical projection system 4, this optical projection system 4 comprises first sensor 41, second sensor 43 and projection arrangement 45, and projection arrangement 45 is done the signal transmission with first sensor 41 and second sensor 43 with wireless mode respectively.In this embodiment, wireless mode is an infrared transmission.In other embodiments, also can use radio signal, ultrasonic signal and other wireless signals to transmit.
In this embodiment, the installing of first sensor 41 and other details are all shown in first embodiment, with sensing user 40 horizontal level.Second sensor 43 is installed on the side wall of 45 of screen 47 and projection arrangements, in order to the upright position of sensing user 40 before screen 47, to send vertical position signal 430 to projection arrangement 45, vertical position signal 430 is a wireless signal, particularly, be infrared signal.Second sensor 43 also is the infrared ray sensing apparatus, and it comprises a plurality of infrared rays and transmits receiving element, and these infrared rays transmit receiving element and are evenly distributed on the right-hand wall that uses these optical projection system 4 spaces and perpendicular to ground.Be example with 72 cun screens equally, its wide and height are about 1.5 meters and 1.1 meters respectively, 11 infrared rays transmit receiving element with 0.11 meter spacing be layed in screen 47 with high space.These infrared rays transmit receiving elements with the frequency (for example per 0.5 second) identical with first sensor 41, and with the time point staggered with sending horizontal level signal 410, send out infrared signal to projection arrangement 45, this infrared signal is vertical position signal 430 just.
Projection arrangement 45 comprises receiver 451, processor 453 and the picture projector 455 equally.After receiver receives horizontal level signal 410 and vertical position signal 430 with wireless mode, processor just produces on-screen displays 42 according to these two position signalling computings, so that this on-screen displays 42 can project the level and the upright position at user 40 places, and on-screen displays 42 is superimposed on the projected picture 44.Picture after then the picture projector will superpose is projected to screen 47, makes to occur this on the projected picture 44 and be positioned at the level at user 40 places and the on-screen displays 42 of upright position.
The infrared ray cost that the foregoing description adopts is far below the cost of the employed video camera of other background technologies, and projection arrangement of the present invention need not set up other interior arrangements yet, more need not improve the processor ability and handle complicated image processing computing.
Because projector on the market has the function of receiving infrared-ray and display screen display frame more now, so the present invention does not need complicated light source and camera chain, only just can reach by simple manually control, reduce the cost and the complexity of product greatly.The present invention and the reception emission of using sensor can be used for various projector.The reception software of part receiver only need be revised by the projector that this function is not arranged, and adds sensor of the present invention, can reach.
The above embodiments only are used for exemplifying embodiments of the present invention, and explain technical characterictic of the present invention, are not to be used for limiting category of the present invention.The person of ordinary skill in the field can unlabored change or the isotropism arrangement scope that all belongs to the present invention and advocated, and interest field of the present invention should be as the criterion with claim.

Claims (10)

1. a projection arrangement is connected with outside sensor, this outside sensor sensing user before screen horizontal level and send the horizontal level signal, this projection arrangement is in order to produce first display frame, this projection arrangement comprises:
Receiver is in order to receive this horizontal level signal;
Processor is projected to upright position behind this screen according to this horizontal level signal and second display frame default, and second display frame is superimposed in this first display frame, and wherein, this second display frame is on-screen displays; And
The picture projector is projected to this screen with the picture after this stack, and this second display frame is shown on one's body this user after projection;
Wherein, this processor is according to the horizontal level of this second display frame of this horizontal level signal operation after being projected to this screen, this receiver also receives vertical position signal, and this vertical position signal is adjusted this second display frame upright position after being projected to this screen by this user by controller and produced.
2. projection arrangement according to claim 1 is characterized in that this receiver receives this horizontal level signal with one in wireless mode and the wired mode.
3. projection arrangement according to claim 1 is characterized in that this receiver receives this vertical position signal with one in wireless mode and the wired mode.
4. optical projection system comprises:
First sensor, in order to the sensing user before screen horizontal level and send the horizontal level signal; And
Projection arrangement in order to produce first display frame, comprises:
Receiver is in order to receive this horizontal level signal;
Processor is projected to upright position behind this screen according to this horizontal level signal and second display frame default, and second display frame is superimposed in this first display frame, and wherein, this second display frame is on-screen displays; And
The picture projector is projected to this screen with the picture after this stack, and this second display frame covers on this user's the body in the projection back;
Wherein, this processor is according to the horizontal level of this second display frame of this horizontal level signal operation after being projected to this screen, this receiver also receives vertical position signal, and this vertical position signal is adjusted this second display frame upright position after being projected to this screen by this user by controller and produced.
5. optical projection system comprises:
First sensor, in order to the sensing user before screen horizontal level and send the horizontal level signal;
Second sensor, in order to this user of sensing before this screen the upright position and send vertical position signal; And
Projection arrangement in order to produce first display frame, comprises:
Receiver is in order to receive this horizontal level signal and this vertical position signal;
Processor according to this horizontal level signal and this vertical position signal, is superimposed on second display frame in this first display frame, and wherein, this second display frame is on-screen displays; And
The picture projector is projected to this screen with the picture after this stack, and this second display frame covers on this user's the body in the projection back.
6. according to claim 4 or 5 described systems, it is characterized in that this receiver receives this horizontal level signal with one in wireless mode and the wired mode.
7. according to claim 4 or 5 described systems, it is characterized in that this receiver receives this vertical position signal with one in wireless mode and the wired mode.
8. according to claim 4 or 5 described systems, it is characterized in that this first sensor is installed in this screen below.
9. according to claim 4 or 5 described systems, it is characterized in that this first sensor is installed on the ground between this user and this projection arrangement.
10. according to claim 4 or 5 described systems, it is characterized in that this first sensor is installed on the ceiling between this user and this projection arrangement.
CN2007100001201A 2007-01-05 2007-01-05 Projection device and system Expired - Fee Related CN101216661B (en)

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Application Number Priority Date Filing Date Title
CN2007100001201A CN101216661B (en) 2007-01-05 2007-01-05 Projection device and system

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Application Number Priority Date Filing Date Title
CN2007100001201A CN101216661B (en) 2007-01-05 2007-01-05 Projection device and system

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CN101216661B true CN101216661B (en) 2011-09-07

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104954713A (en) * 2015-06-16 2015-09-30 苏州佳世达光电有限公司 Eye-protection projecting method and splicing and projecting device
CN107896323A (en) * 2017-11-01 2018-04-10 海信集团有限公司 The method of projection arrangement, screen and the position by screen adjustment projection arrangement

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106507071A (en) * 2016-09-20 2017-03-15 青岛海信电器股份有限公司 A kind of output image processing method and equipment

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6789903B2 (en) * 2003-02-18 2004-09-14 Imatte, Inc. Generating an inhibit signal by pattern displacement
CN1603939A (en) * 1999-05-21 2005-04-06 精工爱普生株式会社 Projection display

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1603939A (en) * 1999-05-21 2005-04-06 精工爱普生株式会社 Projection display
US6789903B2 (en) * 2003-02-18 2004-09-14 Imatte, Inc. Generating an inhibit signal by pattern displacement

Non-Patent Citations (1)

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Title
JP特开2005-92592A 2005.04.07

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104954713A (en) * 2015-06-16 2015-09-30 苏州佳世达光电有限公司 Eye-protection projecting method and splicing and projecting device
CN104954713B (en) * 2015-06-16 2018-10-12 苏州佳世达光电有限公司 A kind of eye shield projection method and splicing projection arrangement
CN107896323A (en) * 2017-11-01 2018-04-10 海信集团有限公司 The method of projection arrangement, screen and the position by screen adjustment projection arrangement

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