CN203287678U - Embedded ultrathin large-screen rear-projection interaction table - Google Patents
Embedded ultrathin large-screen rear-projection interaction table Download PDFInfo
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- CN203287678U CN203287678U CN2013203084141U CN201320308414U CN203287678U CN 203287678 U CN203287678 U CN 203287678U CN 2013203084141 U CN2013203084141 U CN 2013203084141U CN 201320308414 U CN201320308414 U CN 201320308414U CN 203287678 U CN203287678 U CN 203287678U
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Abstract
The utility model discloses an embedded ultrathin large-screen rear-projection interaction table comprising a casing, a screen, laser catchers, a light engine, a small reflective mirror, a large reflective mirror, an embedded interaction system, a heat dissipation apparatus and a power supply apparatus, wherein the screen is arranged on a front surface of the casing, the laser catchers are mounted around the screen; and the light engine, the small reflective mirror, the large reflective mirror, the embedded interaction system, the heat dissipation apparatus and the power supply apparatus are disposed in the casing. Light signals emitted by the light engine are successively reflected by the small reflective mirror and the large reflective mirror and are projected on the screen finally. The interaction table is characterized in that the small reflective mirror is a small arc-surface reflective mirror and is arranged below the screen, and the large reflective mirror is mounted behind the screen and is parallel with the screen. According to the embedded ultrathin large-screen rear-projection interaction table provided by the utility model, disadvantages of heavy casing, instable system, inconvenient content replacement and restricted use people amount of conventional infrared interaction tables are solved. The interaction table can be widely applied to occasions such as exhibition halls, display halls, KTV bars, interaction meeting rooms, school multimedia classrooms and so on.
Description
Technical field
The utility model relates to the rear-projection display technique, and embedded interaction technique particularly relates to a kind of embedded ultra-thin large-screen back projection interaction desk that is applied to exhibition center, the displaying Room, KTV bar, interactive meeting room, school's multi-media classroom.
Background technology
Traditional back projection interaction desk, generally comprise optical projection system, optical reflection unit, screen, infrared touch frame, server, heat abstractor and supply unit.In traditional back projection interaction desk, the signal that optical projection system produces infrared pressure drives animation by server and changes to project on optical reflection unit and reflex on screen.
From a structural point, existing back projection interaction desk comprises super large casing, screen, photo engine, small reflector, large reflective mirror, infrared frame, server, heat abstractor, supply unit.Infrared frame is located at the screen top, and screen is located at the casing front, and photo engine, small reflector, large reflective mirror, server, heat abstractor, supply unit are located in the super large casing, and wherein small reflector tiltedly is located at rear under screen, and large reflective mirror tiltedly is located at the screen rear; From principle of work, thereby the user if with the hand touch screen produce infrared ray crossover pressure point triggering server driver by the video cartoon reacting condition to photo engine, at first the light signal that photo engine sends is thrown to small reflector, and projects on screen after two secondary reflections by small reflector and large reflective mirror.yet, existing back projection interaction desk is because large small reflector is plane mirror, the trapezoidal distortion that causes in order to correct the figure reflection, therefore large small reflector is tiltedly established and is had limitation (namely greatly on angle, the angle of cut of little two catoptrons and screen cover is all between 34 degree are spent to 37), make large reflective mirror optical axis reflection spot and screen spacing too large, and server needs installation system, driver, the player supervisor, cause the heavy volume of casing to produce greatly and easily fault, content is changed inconvenient, touch number is limited, have a strong impact on it in exhibition center, show the Room, the KTV bar, interactive meeting room, applying of school's multi-media classroom.
Summary of the invention
The purpose of this utility model is exactly the defect that exists in above-mentioned prior art, provides that a kind of projector distance is ultrashort, casing is ultra-thin, system, program, content, the built-in unification of player, content change embedded ultra-thin large-screen back projection interaction desk easily.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is as follows:
a kind of embedded ultra-thin large-screen back projection interaction desk, it comprises casing, be located at the screen in casing front, be located at the laser capture device of screen surrounding, and be located at photo engine in casing, small reflector, large reflective mirror, embedded interaction systems, heat abstractor, supply unit, the light signal that described photo engine sends passes through small reflector successively, the reflection of large reflective mirror, project finally on described screen, it is characterized in that: described small reflector is the arc surface small reflector, and be placed on described screen under, described large reflective mirror is located at the screen rear, and parallel with screen.
The circular arc of described small reflector (non-ball) face is
Circular arc (non-ball) face of the hyperbolic-type of (a, b value change and difference according to angle).
The beneficial effects of the utility model have:
The embedded ultra-thin large-screen back projection interaction desk that utilizes the utility model to provide, because small reflector adopts the reflection of circular arc (non-ball) face, greatly shorten the light path of photo engine to giant-screen, namely shortened projector distance, thereby greatly reduced the thickness of rear projection display; Built-in embedded interaction systems effectively reduces server type selecting Risk Reduction fault, the content replacing is convenient, the touch-control number is not limited; Compare with existing technical scheme, the change of small reflector of the present utility model and large reflective mirror position and correction trapezoidal distortion mode, embedded interaction systems built-in device driver, man-machine interaction program, intelligent players, external mobile storage, greatly reduce the thickness of rear projection display, system stability, content is changed convenient, unrestricted number, thereby make embedded rear-projection interaction desk outward appearance more attractive in appearance, still less take user's spatial area, increase number of users, reduce the equipment after-sales service, facilitate the performances such as routine use.
The product of making by the utility model, traditional infrared interaction desk casing is thick and heavy, system is unstable owing to having solved, content is changed inconvenience, the shortcomings such as number of users is restricted, and adopted brand-new full HD digital display chip, therefore can become genuine ultra-thin large high-definition screen interactive product.
In addition,, because back projector display device is full photosystem from small reflector to screen,, so also there is no X-radiation, realize zero radiation requirement fully, reduced the injury to human body, more met Modern Green environmental protection trend, be conducive to user's health.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with description of drawings, embodiment of the present utility model is described in further detail:
As shown in Figure 1, the utility model comprises casing 1, screen 2, photo engine 3, small reflector 4, large reflective mirror 5, embedded interaction systems 6, and described screen 2 is located at the front of casing 1, and described photo engine 3 is located at the lower rear portion of casing 1.Described small reflector 4 is the arc surface small reflector, and be placed on described screen 2 under, described large reflective mirror 5 is located at screen 2 rears, and parallel with screen 2.The light signal that described photo engine 3 sends is projected on small reflector 4, and projects on screen 2 after the reflection of large reflective mirror 5.Described embedded interaction systems 6 comprises the laser capture device 6 ' that is arranged on the screen surrounding, can catch the touch signal on screen 2 and feed back to the animated content that in system, interactive driven by program customizes to carry out relative variation.Embedded interaction systems 6 is based on system kernel and built-in laser capture device driver, man-machine interaction program, animated video player that WINDOWS CE6.0 system development goes out, moves on to storage device interface etc.
The utility model large reflective mirror 5 is parallel with 2 of screens, and small reflector 3 is that non-spherical reflector is to correct figure deformation and to shorten projector distance.The utility model is used circular arc (non-ball) face small reflector with the trapezoidal distortion of remedial frames and is enlarged projection angle, shorten projector distance, the light signal that described photo engine 3 sends is projected on small reflector 4, and project on screen 2 after the reflection of small reflector 4 and large reflective mirror 5, compare with the rear projection display of prior art design with employing same light engine, thickness can reduce by 30～35cm, and basic and flat panel TV thickness approaches.
Changed the angle of large reflective mirror 5 placement locations due to the utility model, if still adopt the words of plane small reflector mode in the past, will make from light engine camera lens reverse distance with angle light arrival screen out out and become different, so it is trapezoidal to make image form.The reflex time of and imaging plane vertical when optical axis, defining Y is the projected size size, X is projector distance, B is the angle between projection ray and optical axis, m is the coefficient of relationship between X and B, and k is constant coefficient, and the available following formula of the size dimension of projection and the relation between projector distance represents:
Y=kX，?X=mB；
When projection optical axis was not orthogonal to imaging surface, oppositely but with the m value of the light of angle, become unequal, so the X value became unequal, causes Y value also different.
The impact that causes in order to solve factor thus, so designed the small reflector 4 of circular arc (non-ball) face in the utility model,, to revise the m coefficient, make when reverse angle is identical, make the X value equal, the Y value that draws is the same.For this reason, can fix tentatively this coefficient is m ', and the angle of optical axis and screen is A, therefore just draws:
X=m’(sinA)?B；
Therefore can reverse push derive m ' according to above formula and come, use the inverse of m ' to revise the face type of small reflector.So therefore, can know that m ' is no longer a constant and function of first order, but two orders relevant to angle and trigonometric function or three order functions, according to different conditions, also may draw and be similar to equation
The reflecting surface of the hyperbolic-type arc surface of (a, b value change and difference according to angle) comes, and therefore the reflecting surface of small reflector 4 of the present utility model just becomes a circular arc (non-ball) face reflecting surface.
Other undeclared part that the utility model relates to is same as the prior art.
Claims (2)
1. embedded ultra-thin large-screen back projection interaction desk, it comprises casing, be located at the screen in casing front, be located at the laser capture device of screen surrounding, and be located at photo engine in casing, small reflector, large reflective mirror, embedded interaction systems, heat abstractor, supply unit, the light signal that described photo engine sends passes through small reflector successively, the reflection of large reflective mirror, project finally on described screen, it is characterized in that: described small reflector is the arc surface small reflector, and be placed on described screen under, described large reflective mirror is located at the screen rear, and parallel with screen.
2. embedded ultra-thin large-screen back projection interaction desk according to claim 1, it is characterized in that: the arc surface of described small reflector is
The arc surface of hyperbolic-type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203084141U CN203287678U (en) | 2013-05-31 | 2013-05-31 | Embedded ultrathin large-screen rear-projection interaction table |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203084141U CN203287678U (en) | 2013-05-31 | 2013-05-31 | Embedded ultrathin large-screen rear-projection interaction table |
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| Publication Number | Publication Date |
|---|---|
| CN203287678U true CN203287678U (en) | 2013-11-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203084141U Expired - Lifetime CN203287678U (en) | 2013-05-31 | 2013-05-31 | Embedded ultrathin large-screen rear-projection interaction table |
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| Country | Link |
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| CN (1) | CN203287678U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103293841A (en) * | 2013-05-31 | 2013-09-11 | 无锡神州服联技术服务有限公司 | Embedded rear projection interactive table with ultra-thin large screen |
-
2013
- 2013-05-31 CN CN2013203084141U patent/CN203287678U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103293841A (en) * | 2013-05-31 | 2013-09-11 | 无锡神州服联技术服务有限公司 | Embedded rear projection interactive table with ultra-thin large screen |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: WUXI E-SPHERE TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: WUXI SERVE CHINA TECHNOLOGY SERVICE CO., LTD. Effective date: 20150707 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150707 Address after: 214203 Jiangsu city of Wuxi province Yixing City Jincheng Road Economic Development Zone No. 11 Yixing Pioneer Park building D8 Patentee after: WUXI E-SPHERE TECHNOLOGY Co.,Ltd. Address before: 214200 Jiangsu city of Wuxi province Yixing Jincheng Road Economic Development Zone No. 11 Yixing Park D10 Patentee before: WUXI SERVE CHINA TECHNOLOGY SERVICE Co.,Ltd. |
|
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 214213 Jiangsu City, Yixing Province Economic and Technological Development Zone, Wuxi, Xing Xing Road, No. 10, Yixing Photoelectric Industrial Park, room 3, room 101 Patentee after: WUXI SEEMILE TECHNOLOGY Co.,Ltd. Address before: 214203 Jiangsu city of Wuxi province Yixing City Jincheng Road Economic Development Zone No. 11 Yixing Pioneer Park building D8 Patentee before: WUXI E-SPHERE TECHNOLOGY Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131113 |