CN201429833Y - Touch screen with cameras - Google Patents
Touch screen with cameras Download PDFInfo
- Publication number
- CN201429833Y CN201429833Y CN2009201091746U CN200920109174U CN201429833Y CN 201429833 Y CN201429833 Y CN 201429833Y CN 2009201091746 U CN2009201091746 U CN 2009201091746U CN 200920109174 U CN200920109174 U CN 200920109174U CN 201429833 Y CN201429833 Y CN 201429833Y
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- CN
- China
- Prior art keywords
- camera
- touch
- reflective mirror
- screen
- frame
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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.)
- Expired - Fee Related
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/042—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means
- G06F3/0428—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means by sensing at the edges of the touch surface the interruption of optical paths, e.g. an illumination plane, parallel to the touch surface which may be virtual
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Studio Devices (AREA)
- Closed-Circuit Television Systems (AREA)
Abstract
The utility model discloses a touch screen with cameras. The touch screen comprises a frame, the cameras, a touch detection area and a reflector, wherein the reflector is mounted on a frame edge without the cameras, and is covered by the viewing fields of at least two cameras. The touch screen with the cameras has the advantages of the elimination of detection blind areas, simple structure and lowcost, and is suitable for mass production.
Description
Technical field
The utility model relates to a kind of touch-screen, relates in particular to a kind of touch-screen with camera and reflective mirror.
Background technology
Touch-screen as a kind of convenient, the human-computer interaction device is approved by masses intuitively, touch-screen on the market is varied, band camera touch-screen is exactly wherein a kind of.Band camera touch-screen comes the position of senses touch thing by three angle positioning methods, and simple and convenient, application is wide, is the product of New Times development.But band camera touch-screen also has disadvantage: one, exist near the camera object lens and detect the blind area; Two, the regional annex accuracy of detection at the camera line is not enough.These two kinds of disadvantages are anxious to be solved.
The utility model content
At problems of the prior art, the utility model provides a kind of band camera touch-screen, described touch-screen includes framework, camera and touches surveyed area, described touch-screen also includes reflective mirror, described reflective mirror is installed on the leg of frame that camera is not housed, and the visual field of at least two cameras covers described reflective mirror.
Further, described camera is two, and the length of described reflective mirror is identical with the length of its place leg of frame.
Further, to be installed in the visual angle of two corners of the leg of frame relative with described reflective mirror and described camera respectively be 90 degree to described camera.
Further, described camera is installed on the leg of frame relative with described reflective mirror simultaneously or is installed on two legs of frame adjacent with described reflective mirror respectively or is installed in respectively on the two adjacent legs of frame that reflective mirror is not housed.
Further, the visual angle of described camera is less than 90 degree.
Further, microprism reflecting strips or tubulose infrared light supply are installed on the leg of frame that reflective mirror is not housed.
The utility model also provides a kind of band camera touch-screen, described touch-screen includes framework, camera and touches surveyed area, described touch-screen also includes reflective mirror, described reflective mirror is installed on the leg of frame that camera is not housed, described camera is that the visual field of and described camera covers whole touch surveyed area and reflective mirror, and described camera is attached with light source.
Further, it is 90 degree that described camera is installed in a corner of the relative leg of frame of described reflective mirror and the visual angle of described camera, the length that is shorter in length than its place leg of frame of described reflective mirror.
Further, described light source is infrared source of parallel light, and the optical axis of described light source is parallel to described reflective mirror.
Further, described infrared source of parallel light is installed on the leg of frame between described reflective mirror and the described camera.
This band camera touch-screen described in the utility model has installed a reflective mirror additional on the architecture basics of original band camera touch-screen, when line is regional near touch objects appears at camera or between the camera, can in reflective mirror, form a virtual image, camera is determined the position of touch objects by the position of detecting the virtual image, thereby eliminated the detection blind area, and this band camera touch screen structure is simple, with low cost, is beneficial to production in enormous quantities.
Description of drawings
Fig. 1 is the structural drawing of a kind of embodiment of band camera touch-screen;
Fig. 2 is the structural drawing of the another kind of embodiment of band camera touch-screen;
Fig. 2 a is the structural drawing of the another kind of manifestation mode of the another kind of embodiment of band camera touch-screen;
Fig. 2 b is the structural drawing of the third manifestation mode of the another kind of embodiment of band camera touch-screen;
Fig. 3 is the structural drawing of a kind of prioritization scheme of a kind of and another kind of embodiment of band camera touch-screen;
Fig. 4 is the structural drawing of the third embodiment of band camera touch-screen.
Embodiment
The utility model will be further described below in conjunction with specification drawings and specific embodiments.
With reference to Fig. 1, structural drawing for a kind of embodiment of band camera touch-screen described in the utility model, this band camera touch-screen includes framework 101, infrared camera 102, reflective mirror 103 and touches surveyed area 104, reflective mirror 103 is installed on the leg of frame that infrared camera 102 is not housed, and the visual field of at least two infrared cameras 102 covers reflective mirror 103.Infrared camera 102 has two in embodiment illustrated in fig. 1, is installed in two corners of the leg of frame relative with reflective mirror 103 respectively, and the visual angle of infrared camera is 90 degree, and the length of reflective mirror 103 is identical with the length of its place leg of frame.The line zone of the position of touch point A shown in the figure between two infrared cameras 102, the position of touch point B is positioned near the infrared camera 103, these two touch point position all belong to the detection blind area in existing band camera touch-screen, but in the present embodiment, touch point A can generate projection a in reflective mirror 103, touch point B can generate projection b in reflective mirror 103, touch-screen is easy to determine by triangulation location the position of projection a, b, through analysis, the processing of disposal system in the touch-screen, the position that just can draw touch point A, B.When the position, touch point was not in the detection blind area, two infrared cameras directly just can be determined the position of touch objects by triangulation location.Wherein, the zone of arc dotted line 105 is the detection blind area of infrared camera, and dotted line 106 is the virtual ray of projection, and the zone among the figure between the band arrow solid line is the visual field of infrared camera.The band camera touch-screen of this structure has only installed a detection blind area that reflective mirror has just been eliminated band camera touch-screen additional, and low production cost, is beneficial to production in enormous quantities.
With reference to Fig. 2, structural drawing for the another kind of embodiment of band camera touch-screen described in the utility model, this band camera touch-screen and the difference of band camera touch-screen shown in Figure 1 are that two infrared cameras 102 are installed on the leg of frame relative with reflective mirror 103 simultaneously, the visual field of infrared camera 102 covers reflective mirror 103, and the visual angle of infrared camera 102 is less than 90 degree.Because the length of reflective mirror 103 is identical with the length of its place leg of frame, then whole touch surveyed area 104 forms projection 201 in reflective mirror 103 in reflective mirror, the any touch objects that touches on the surveyed area 104 equally also can form projection in reflective mirror 103, as touch point N among the figure and projection n thereof, because the visual field of two infrared cameras 102 all covers reflective mirror 103, then can confirm the position of projection n in the reflective mirror by three angle positioning methods, calculate, analyze the physical location that just can obtain touch point N by disposal system.Camera installation site in the band camera touch-screen of this structure is flexible, and the accuracy of detection height has been eliminated the detection blind area equally, has more the market competitiveness.Fig. 2 a, Fig. 2 b are that two infrared cameras 102 are installed on two legs of frame adjacent with reflective mirror 103 respectively or the structural representation when being installed in diverse location on the two adjacent legs of frame that reflective mirror 103 is not housed respectively.
With reference to Fig. 3, be a kind of prioritization scheme of band camera touch-screen embodiment described in the utility model, this prioritization scheme is to a kind of structural optimization of above-mentioned all embodiment, and tubulose infrared light supply 301 is installed on the leg of frame that reflective mirror 103 is not housed.Wherein tubulose infrared light supply 301 can replace with the microprism reflecting strips, only the microprism reflecting strips need be sticked on other limit of framework of not adorning reflective mirror 103 to get final product.The band camera touch-screen of this structure has been optimized the image acquisition effect of infrared camera, and then has been improved acquisition precision by installing light source or reflecting strips additional.
With reference to Fig. 4, structural drawing for the third embodiment of band camera touch-screen described in the utility model, this band camera touch-screen includes framework 101, infrared camera 102 and reflective mirror 103 and touches surveyed area 104, reflective mirror 103 is installed on the leg of frame that infrared camera 102 is not housed, infrared camera 102 is that the visual field of and this infrared camera 102 covers whole touch surveyed area 104 and reflective mirror 103, and infrared camera 102 is attached with infrared source of parallel light 401.Infrared camera 102 shown in Fig. 4 among the embodiment is installed in a corner with the reflective mirror 103 relative legs of frame, the visual angle of this infrared camera is 90 degree, infrared source of parallel light 401 is installed on the leg of frame between reflective mirror 103 and the infrared camera 102, and the optical axis of infrared source of parallel light 401 is parallel to reflective mirror 103.Because the infrared camera imaging needs certain object distance, if the hypotelorism between touch objects and the infrared camera just can't be caught image by infrared camera, touch point M shown in the figure is positioned at and detects the blind area, existing band camera touch-screen is the position that can't detect touch point M, but in the present embodiment, because installed a reflective mirror 103 additional, just can detect the position of touch point M, eliminated the detection blind area.Touch point M can generate projection m in reflective mirror, touch point M can form a shade m ' on the leg of frame under the irradiation of infrared source of parallel light 401, and infrared camera 102 just can be determined the physical location of touch point M by the position of detecting m and m '.When the touch point is positioned at when detecting outside the blind area, infrared camera just can be determined the physical location of touch objects by senses touch thing and touch objects formed shade under infrared source of parallel light is shone.Wherein, the length of reflective mirror 103 can be shorter than the length of its place leg of frame, only needs and isometric the getting final product of width of detecting the blind area, and economical with materials reduces production costs.Wherein, dotted line 402 is the virtual ray of shade.The band camera touch-screen of this structure has been eliminated the detection blind area, and simple in structure, production cost is low, is beneficial to production in enormous quantities.
Method described in the utility model is not limited to the embodiment described in the embodiment, and those skilled in the art draw other embodiment according to the technical solution of the utility model, belong to technological innovation scope of the present utility model equally.
Claims (10)
1. be with the camera touch-screen for one kind, described touch-screen includes framework, camera and touches surveyed area, it is characterized in that: described touch-screen also includes reflective mirror, described reflective mirror is installed on the leg of frame that camera is not housed, and the visual field of at least two cameras covers described reflective mirror.
2. a kind of band camera touch-screen according to claim 1, it is characterized in that: described camera is two, the length of described reflective mirror is identical with the length of its place leg of frame.
3. a kind of band camera touch-screen according to claim 2 is characterized in that: described camera is installed in two corners of the leg of frame relative with described reflective mirror respectively and the visual angle of described camera is 90 degree.
4. a kind of band camera touch-screen according to claim 2 is characterized in that: described camera is installed on the leg of frame relative with described reflective mirror simultaneously or is installed on two legs of frame adjacent with described reflective mirror respectively or is installed in respectively on the two adjacent legs of frame that reflective mirror is not housed.
5. a kind of band camera touch-screen according to claim 4 is characterized in that: the visual angle of described camera is less than 90 degree.
6. according to the described a kind of band camera touch-screen of one of claim 1 to 5, it is characterized in that: microprism reflecting strips or tubulose infrared light supply are installed on the leg of frame that reflective mirror is not housed.
7. be with the camera touch-screen for one kind, described touch-screen includes framework, camera and touches surveyed area, it is characterized in that: described touch-screen also includes reflective mirror, described reflective mirror is installed on the leg of frame that camera is not housed, described camera is that the visual field of and described camera covers whole touch surveyed area and reflective mirror, and described camera is attached with light source.
8. a kind of band camera touch-screen according to claim 7, it is characterized in that: it is 90 degree that described camera is installed in a corner of the relative leg of frame of described reflective mirror and the visual angle of described camera, the length that is shorter in length than its place leg of frame of described reflective mirror.
9. a kind of band camera touch-screen according to claim 8, it is characterized in that: described light source is infrared source of parallel light, and the optical axis of described light source is parallel to described reflective mirror.
10. a kind of band camera touch-screen according to claim 9 is characterized in that: described infrared source of parallel light is installed on the leg of frame between described reflective mirror and the described camera.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201091746U CN201429833Y (en) | 2009-06-22 | 2009-06-22 | Touch screen with cameras |
| PCT/CN2010/074206 WO2010149018A1 (en) | 2009-06-22 | 2010-06-22 | Touch screen with cameras |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201091746U CN201429833Y (en) | 2009-06-22 | 2009-06-22 | Touch screen with cameras |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201429833Y true CN201429833Y (en) | 2010-03-24 |
Family
ID=42033573
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201091746U Expired - Fee Related CN201429833Y (en) | 2009-06-22 | 2009-06-22 | Touch screen with cameras |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN201429833Y (en) |
| WO (1) | WO2010149018A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010149018A1 (en) * | 2009-06-22 | 2010-12-29 | 北京汇冠新技术股份有限公司 | Touch screen with cameras |
| CN104731418A (en) * | 2015-03-27 | 2015-06-24 | 青岛海信电器股份有限公司 | Touch screen positioning method and device and touch screen device |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3920067B2 (en) * | 2001-10-09 | 2007-05-30 | 株式会社イーアイティー | Coordinate input device |
| US7460110B2 (en) * | 2004-04-29 | 2008-12-02 | Smart Technologies Ulc | Dual mode touch system |
| JP2007323328A (en) * | 2006-05-31 | 2007-12-13 | Mitsubishi Electric Corp | Coordinate input device |
| CN201145890Y (en) * | 2007-11-01 | 2008-11-05 | 复旦大学 | Infrared camera positioning detection touch screen system |
| CN101145091A (en) * | 2007-11-01 | 2008-03-19 | 复旦大学 | Touch screen based on infrared camera and its positioning detection method |
| CN201429831Y (en) * | 2009-04-29 | 2010-03-24 | 北京汇冠新技术股份有限公司 | Touch screen with camera |
| CN201429833Y (en) * | 2009-06-22 | 2010-03-24 | 北京汇冠新技术股份有限公司 | Touch screen with cameras |
-
2009
- 2009-06-22 CN CN2009201091746U patent/CN201429833Y/en not_active Expired - Fee Related
-
2010
- 2010-06-22 WO PCT/CN2010/074206 patent/WO2010149018A1/en not_active Ceased
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010149018A1 (en) * | 2009-06-22 | 2010-12-29 | 北京汇冠新技术股份有限公司 | Touch screen with cameras |
| CN104731418A (en) * | 2015-03-27 | 2015-06-24 | 青岛海信电器股份有限公司 | Touch screen positioning method and device and touch screen device |
| CN104731418B (en) * | 2015-03-27 | 2017-11-14 | 青岛海信电器股份有限公司 | A kind of touch-screen localization method, device and touch-screen equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2010149018A1 (en) | 2010-12-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Beijing Irtouch Systems Co.,Ltd. Document name: Notification to Pay the Fees |
|
| DD01 | Delivery of document by public notice | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100324 Termination date: 20180622 |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| DD01 | Delivery of document by public notice |
Addressee: Beijing UNITOP New Technology Co., Ltd. Document name: Notification of Termination of Patent Right |
|
| DD01 | Delivery of document by public notice |