CN106681089A - Back laser projection system - Google Patents
Back laser projection system Download PDFInfo
- Publication number
- CN106681089A CN106681089A CN201710186042.2A CN201710186042A CN106681089A CN 106681089 A CN106681089 A CN 106681089A CN 201710186042 A CN201710186042 A CN 201710186042A CN 106681089 A CN106681089 A CN 106681089A
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- CN
- China
- Prior art keywords
- projection
- screen
- light
- host computer
- projection screen
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- 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
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/54—Accessories
- G03B21/56—Projection screens
- G03B21/58—Projection screens collapsible, e.g. foldable; of variable area
Abstract
The invention belongs to the technical field of projection devices, and discloses a back laser projection system. The back laser projection system comprises a computer host, a back projector, a projection screen, a measurement light curtain and a wireless position transmitter; the back projector is in communication connection with the computer host; the projection screen is arranged between the back projector and a user; the measurement light curtain is arranged at the back of the projection screen; and the wireless position transmitter is arranged on the projection screen, connected to the measurement light curtain, and in wireless communication connection with the computer host. According to the back laser projection system disclosed by the invention, the back projector and the projection screen are arranged in a matched manner; therefore, a display blind area due to the reasons, such as artificial shading, in a development process can be avoided; furthermore, due to arrangement of back projection of the back projector, the placement space is reduced; and the use range is enlarged.
Description
Technical field
The present invention relates to projection arrangement technical field, more particularly to a kind of back laser projection system.
Background technology
Laser projection, is transmiting frame out, and to project it onto throwing by the laser beam produced by laser projection
On shadow curtain, and the Projection Display process for completing.
The laser projection sold in the market, majority are to be projected from projection screen front and realized imaging work(
Energy.In videograph process, such projection pattern, usually can because occurring barrier between laser projection and projection screen and
Cause screen imaging blind area.Also, this kind of projection pattern, due to being that demonstrator is in finger when participating in the cintest from projection screen front projection
Explanation can cannot be explicitly indicated because imaging is blocked when showing explanation, it is impossible to the operation demonstrated when participating in the cintest.Meanwhile, this kind of projection
Space shared by mode is larger, and application place is limited, and the scope of application is narrower, and market prospect is limited.
The content of the invention
It is an object of the invention to provide a kind of avoid imaging blind area and the back laser projection of good demonstration effect when participating in the cintest
System.
It is that, up to this purpose, the present invention is employed the following technical solutions：A kind of back laser projection system, including：
Host computer；
Back-projection machine, is connected with host computer communication, for receiving the image information of host computer and sending corresponding
Projected light beam；
Projection screen, is arranged between back-projection machine and user, and the back side receives the projected light sent by back-projection machine
Beam, front show the projected image for Consumer's Experience；
Measuring light screen, is arranged at the projection screen back side, by the back side raised points analytical calculation user for detecting projection screen
In the positional information of projection screen front touching；
Wireless position transmitter, is arranged on projection screen, is connected to above-mentioned Measuring light screen, and wireless with host computer
Communication connection, passes to host computer for positional information obtained by Measuring light screen is detected.
Preferably, the Measuring light screen includes two groups of measurement gratings, per group of measurement grating includes Light-Emitting Diode
And light receiving tube, in two groups of measurement gratings, the Light-Emitting Diode and light receiving tube of one group of measurement grating are respectively arranged at projection screen
The upper and lower both sides in the curtain back side, the Light-Emitting Diode and light receiving tube of another group of measurement grating are respectively arranged at projection screen back side or so
Both sides.Above-mentioned two groups of measurement gratings are respectively used to the positional information for detecting projection screen horizontal direction and vertical direction, and above-mentioned two
The setting of group measurement grating, realizes the touch screen display function of projection screen simple and practically, improves interactivity, enhance this
The demonstrating effect when participating in the cintest of invention.
Preferably, the projection screen includes rigid support, the stereoplasm frame being arranged on rigid support and is layed in
Elastic extinction curtain in stereoplasm frame；The elastic extinction curtain back side absorbs projected light beam, and front diffuse-reflectance shows projection
Image；The Measuring light screen is arranged on stereoplasm frame.The setting of above-mentioned rigid support and stereoplasm frame so as to Measuring light screen
Measurement grating fixation it is more firm, the setting of above-mentioned elastic extinction curtain, while increased display effect, improves
Reliability to measuring grating triggering, being equipped with for above-mentioned rigid support, stereoplasm frame and elastic extinction curtain, increases on the whole
Strong accuracy of the Measuring light screen to user's touch position infomation detection, improves the convenient sexual experience that user's touch screen shows.
Preferably, mirroring apparatus are provided with the back-projection machine, the mirroring apparatus are for by host computer
Image information or so mirror image.The setting of above-mentioned image device so that the present invention is higher for the suitability that back-projection is arranged, increases
Strong Consumer's Experience.
Preferably, the back-projection machine is rear-projection short focus laser projection, the rear-projection short focus laser projection sets
It is placed in the back lower place of elastic extinction curtain.Above-mentioned setting is safe and reliable, takes up room little, practical, and back-projection machine
Position can also adjust according to actual needs.
Beneficial effects of the present invention：Above-mentioned back-projection machine and projection screen are equipped with, it is to avoid in videograph process
The appearance of the display blind area caused due to the reason such as artificially blocking, and the setting of back-projection machine back-projection, reduce
Placement space, increases use range；Above-mentioned Measuring light screen and wireless position transmitter are equipped with, and user can be by touching
Touch the change that projection screen manipulates projected image so that present invention achieves the function that touch screen shows, and with host computer without
The setting of the wireless position transmitter of line communication connection, reduces the setting of data connecting line, easy to operate so that the present invention is more
Plus it is practical.
Description of the drawings
Fig. 1 is the structural representation of back laser projection system of the present invention.
In figure：
1st, host computer；2nd, back-projection machine；3rd, projection screen；31st, rigid support；32nd, stereoplasm frame；33rd, elasticity is inhaled
Light curtain；4th, wireless position transmitter；5th, measure grating.
Specific embodiment
Embodiments of the invention are described below in detail, the example of embodiment is shown in the drawings, wherein identical from start to finish
Or similar label represents same or similar element or the element with same or like function.Retouch below with reference to accompanying drawing
The embodiment stated is exemplary, it is intended to for explaining the present invention, and be not considered as limiting the invention.
Technical scheme is further illustrated below in conjunction with the accompanying drawings and by specific embodiment.
As shown in figure 1, the invention provides a kind of back laser projection system, including host computer 1, back-projection machine 2,
Projection screen 3, Measuring light screen and wireless position transmitter 4.Above-mentioned back-projection machine 2, is connected with the communication of above-mentioned host computer 1,
For receiving the image information of host computer 1 and sending corresponding projected light beam.Above-mentioned projection screen 3, is arranged at back-projection
Between machine 2 and user, the back side (right side as shown in Figure 1) receives the projected light beam sent by back-projection machine 2, and front is (such as Fig. 1
Shown left side) show the projected image for supplying Consumer's Experience.Above-mentioned Measuring light screen, is arranged at 3 back side of projection screen, by detection
The positional information that the back side raised points analytical calculation user of projection screen 3 is touched in 3 front of projection screen.Above-mentioned wireless position is passed
Defeated device 4, is arranged on projection screen 3, is connected to above-mentioned Measuring light screen, and is connected with 1 wireless telecommunications of host computer, for inciting somebody to action
Positional information obtained by Measuring light screen detection passes to host computer 1.
Above-mentioned back-projection machine 2 and projection screen 3 are equipped with, it is to avoid former due to artificially blocking etc. in videograph process
Thus the appearance of the display blind area for causing, and the setting of 2 back-projection of back-projection machine, placement space is reduced, is increased
Use range；Above-mentioned Measuring light screen and wireless position transmitter 4 are equipped with, and user can be grasped by touching projection screen 3
The change of vertical projected image so that present invention achieves the function that touch screen shows, improves interactivity, enhance facing for the present invention
Field demonstrating effect, and the setting of the wireless position transmitter 4 being connected with 1 wireless telecommunications of host computer, reduce data cube computation
The setting of line, it is easy to operate so that the present invention is more practical.
Specifically, in the present embodiment, above-mentioned Measuring light screen includes two groups of measurement gratings 5, and per group of measurement grating 5 includes
There are Light-Emitting Diode and light receiving tube, in two groups of measurement gratings 5, the Light-Emitting Diode and light receiving tube point of one group of measurement grating 5
The upper and lower both sides in 3 back side of projection screen are not arranged at, the Light-Emitting Diode and light receiving tube of another group of measurement grating 5 are respectively arranged at
3 back side left and right sides of projection screen.Light-Emitting Diode and light receiving tube in above-mentioned per group of measurement grating 5, is the normal of this area
Rule are arranged, and its concrete function and the course of work will not be described here.The setting of above-mentioned two groups of measurement gratings 5, simple and practical ground are real
Show the touch screen display function of projection screen 3, improve interactivity, enhance the demonstrating effect when participating in the cintest of the present invention.
More specifically, in one embodiment, above-mentioned projection screen 3 includes rigid support 31, is arranged at rigid support
Stereoplasm frame 32 and the elastic extinction curtain 33 being layed in stereoplasm frame 32 on 31；Inhale at above-mentioned elastic 33 back side of extinction curtain
Projected light beam is received, front diffuse-reflectance shows projected image；Above-mentioned Measuring light screen is arranged on stereoplasm frame 32.Above-mentioned rigid support
31 and the setting of stereoplasm frame 32 so that the fixation to the measurement grating 5 of Measuring light screen is more firm, above-mentioned elastic extinction curtain
33 setting, while increased display effect, improve to measure grating 5 triggering reliability, above-mentioned rigid support 31,
Stereoplasm frame 32 is equipped with elastic extinction curtain 33, enhances Measuring light screen on the whole and user's touch position information is examined
The accuracy of survey, improves the convenient sexual experience that user's touch screen shows.
Preferably, in specific embodiment, in above-mentioned back-projection machine 2, mirroring apparatus are provided with, above-mentioned image device is used for
Image information by host computer 1 or so mirror image.The setting of above-mentioned image device so that the present invention is arranged for back-projection
The suitability is higher, enhances Consumer's Experience.
Be more highly preferred to, in one embodiment, above-mentioned back-projection machine 2 be rear-projection short focus laser projection, the above-mentioned back of the body
Throw the back lower place that short focus laser projection is arranged at elastic extinction curtain 33.Above-mentioned setting is safe and reliable, takes up room little, practical
Property it is strong, and the position of back-projection machine 2 can also adjust according to actual needs.
In describing the invention, the orientation or position relationship of the instruction such as term " front ", " back side ", " back lower place " is base
In orientation shown in the drawings or position relationship, the description present invention is for only for ease of, it is impossible to be interpreted as limitation of the present invention.
In the description of specific embodiment, the property discussed term " in the present embodiment ", " in one embodiment ", " concrete reality
Apply in example " etc. description mean that specific features or feature with reference to embodiment description are contained at least one embodiment of the present invention
In.And identical embodiment is not necessarily referring to the schematic representation of above-mentioned term in a specific embodiment,.And,
The specific features or point of description can be combined in one or more any embodiment in an appropriate manner.
Obviously, the above embodiment of the present invention illustrates example of the present invention just for the sake of clear, and is not right
The restriction of embodiments of the present invention.For those of ordinary skill in the field, may be used also on the basis of the above description
To make other changes in different forms.There is no need to be exhaustive to all of embodiment.It is all this
Any modification, equivalent and improvement made within the spirit and principle of invention etc., should be included in the claims in the present invention
Protection domain within.
Claims (5)
1. a kind of back laser projection system, it is characterised in that include：
Host computer (1)；
Back-projection machine (2), is connected with host computer (1) communication, concurrent for receiving the image information that host computer (1) exports
Go out corresponding projected light beam；
Projection screen (3), is arranged at back-projection machine (2) and user between, and the back side receives the throwing sent by back-projection machine (2)
Shadow light beam, front show the projected image for Consumer's Experience；
Measuring light screen, is arranged at projection screen (3) back side, by detecting that the back side raised points analytical calculation of projection screen (3) is used
The positional information that family is touched in projection screen (3) front；
Wireless position transmitter (4), is arranged on projection screen (3), is connected to the Measuring light screen, and and host computer
(1) wireless telecommunications connection, for positional information obtained by Measuring light screen detection is passed to host computer (1).
2. back laser projection system according to claim 1, it is characterised in that the Measuring light screen includes two groups of measurements
Grating (5), per group of measurement grating (5) include Light-Emitting Diode and light receiving tube, in two groups of measurement gratings (5), one group of survey
The Light-Emitting Diode and light receiving tube of amount grating (5) is respectively arranged at the upper and lower both sides in projection screen (3) back side, another group of measurement light
The Light-Emitting Diode and light receiving tube of grid (5) is respectively arranged at projection screen (3) back side left and right sides.
3. back laser projection system according to claim 2, it is characterised in that the projection screen (3) is including rigidity
Support (31), the stereoplasm frame (32) being arranged on rigid support (31) and the elastic extinction curtain being layed in stereoplasm frame (32)
Cloth (33)；
Elastic extinction curtain (33) back side absorbs projected light beam, and front diffuse-reflectance shows projected image；
The Measuring light screen is arranged on stereoplasm frame (32).
4. back laser projection system according to claim 3, it is characterised in that arrange in the back-projection machine (2)
There are a mirroring apparatus, the mirroring apparatus are for the image information that exports host computer (1) or so mirror image.
5. back laser projection system according to claim 4, it is characterised in that the back-projection machine (2) is rear-projection
Short focus laser projection, the rear-projection short focus laser projection are arranged at the back lower place of elastic extinction curtain (33).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710186042.2A CN106681089A (en) | 2017-03-27 | 2017-03-27 | Back laser projection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710186042.2A CN106681089A (en) | 2017-03-27 | 2017-03-27 | Back laser projection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106681089A true CN106681089A (en) | 2017-05-17 |
Family
ID=58826301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710186042.2A Pending CN106681089A (en) | 2017-03-27 | 2017-03-27 | Back laser projection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106681089A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113376935A (en) * | 2020-02-25 | 2021-09-10 | 青岛海信激光显示股份有限公司 | Laser projection device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29607316U1 (en) * | 1996-04-23 | 1996-10-02 | Knigge Markus | Multimedia terminal |
| JP2003005617A (en) * | 2001-02-23 | 2003-01-08 | Denso Corp | Hologram display unit and television telephone set |
| CN1896919A (en) * | 2005-07-14 | 2007-01-17 | 李银林 | Touch projection screen system and its realization |
| CN103226411A (en) * | 2013-04-10 | 2013-07-31 | 苏州佳世达光电有限公司 | Interactive projection system and touch control interactive method thereof |
| CN204832753U (en) * | 2015-08-13 | 2015-12-02 | 白衡 | Ultrashort burnt projection arrangement |
| CN106054512A (en) * | 2015-04-07 | 2016-10-26 | 豪威科技股份有限公司 | Touch screen rear projection display |
-
2017
- 2017-03-27 CN CN201710186042.2A patent/CN106681089A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29607316U1 (en) * | 1996-04-23 | 1996-10-02 | Knigge Markus | Multimedia terminal |
| JP2003005617A (en) * | 2001-02-23 | 2003-01-08 | Denso Corp | Hologram display unit and television telephone set |
| CN1896919A (en) * | 2005-07-14 | 2007-01-17 | 李银林 | Touch projection screen system and its realization |
| CN103226411A (en) * | 2013-04-10 | 2013-07-31 | 苏州佳世达光电有限公司 | Interactive projection system and touch control interactive method thereof |
| CN106054512A (en) * | 2015-04-07 | 2016-10-26 | 豪威科技股份有限公司 | Touch screen rear projection display |
| CN204832753U (en) * | 2015-08-13 | 2015-12-02 | 白衡 | Ultrashort burnt projection arrangement |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113376935A (en) * | 2020-02-25 | 2021-09-10 | 青岛海信激光显示股份有限公司 | Laser projection device |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170517 |