CN2779524Y - Video display platform - Google Patents
Video display platform Download PDFInfo
- Publication number
- CN2779524Y CN2779524Y CN 200420089791 CN200420089791U CN2779524Y CN 2779524 Y CN2779524 Y CN 2779524Y CN 200420089791 CN200420089791 CN 200420089791 CN 200420089791 U CN200420089791 U CN 200420089791U CN 2779524 Y CN2779524 Y CN 2779524Y
- Authority
- CN
- China
- Prior art keywords
- way
- camera
- switch
- video
- lamp
- Prior art date
- 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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- Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
Abstract
The utility model discloses a multimedia video display table which comprises 220V commercial power which is divided into four ways after passing through a fuse, wherein the first way is controlled by a camera switch (5), and after the first way passes through a power transformer (11), a full-bridge rectifier and a three-terminal regulator (17), a 12V voltage is outputted to provide working voltage for a camera (1); the second way and the third way are respectively controlled by an internal lamp switch (6) and an external lamp switch (7), and the second way and the third way pass through an internal lamp electronic ballast (12) and an external lamp electronic ballast (13) to supply power to each ring-shaped energy saving lamp (14) of the external lamp (2); the fourth way provides a working voltage for a VCD (8). Signals outputted by the camera (1) and the VCD (8) are controlled by a video switching button (4) and are outputted to a terminal through a video output terminal (15) and an audio output terminal (16). By the adoption of the structure, the utility model can be connected with various display equipment terminals, such as a television, a computer, a projector, etc., and various kinds of image and word information, stereoscopic real objects, pictures, slides, etc. can be directly taken. The utility model can be used for vividly transmitting images.
Description
Technical field
The utility model relates to a kind of video showing platform, especially a kind ofly is with multimedia video showing platform.
Background technology
In classroom instruction, existing slide projector is by optical principle dosing slide to be put in the screen, though relatively visual pattern can only be made the content of courses lantern slide and could use, concrete various teaching notes in kind or that make directly can not be showed on TV.
Summary of the invention
The purpose of this utility model is exactly the problem that exists at existing slide projector, and a kind of video showing platform that various teaching materials directly can be illustrated on the TV screen of design.
The purpose of this utility model is to realize like this, this video showing platform comprises that the 220V civil power is divided into four the tunnel behind fuse, the first via is controlled through camera switch (5), behind power transformer (11), full-bridge rectification and three terminal regulator (17), output 12V voltage provides operating voltage for camera (1); Second and third road behind Built-in light electric ballast (12), external lamp electronic ballast (13), gives external lamp (2) each annular electricity-saving lamp (14) power supply respectively through Built-in light (6), external lamp switch (7) control; The four the tunnel provides operating voltage for VCD (8).The signal of camera (1) and VCD (8) output through video switch button (4) control, exports terminal to by video output terminal (15), audio output (16).
Owing to adopt said structure, can be connected with all kinds of display device terminals such as televisor, computer, projectors, directly absorb various photo informations, three-dimensional material object, picture, lantern slide etc.Image is carried out transmission true to nature.
Marginal data
Describe embodiment of the present utility model in detail below in conjunction with accompanying drawing
Fig. 1 video showing platform synoptic diagram
Fig. 2 circuit theory diagrams
Among the figure: 1, camera 2, external lamp 3, external lamp turn to adjusting 4, video switch button 5, camera switch 6, Built-in light switch 7, external lamp switch 8, VCD 9, folding elevating lever 10, image size adjustment knob 11, power transformer 12, Built-in light electric ballast 13, external lamp electronic ballast 14, annular electricity-saving lamp 15, video output terminal 16, audio output 17, three terminal regulator
Embodiment
Camera switch (5), Built-in light switch (6), external lamp switch (7) is double-pole single throw, video switch button (4) is a double-point double-throw switch, camera switch (5) is when being pressed, switch is in on-state, the voltage of power transformer (11) output is after full-bridge rectification filtering and three-terminal regulator block 7812 voltage stabilizings, output direct current 12V, operating voltage is provided for camera (1), swirl chart is as size adjustment knob (10), can change the object distance of subject, thereby change over the picture size,, then can be used for micro-displaying if change camera (1) camera lens into microlens.If Built-in light switch (6) is pressed, electric ballast (12) work, annular electricity-saving lamp (14) is luminous, is used for illuminating subject from the bottom.If external lamp switch (7) is pressed, electric ballast (13) work, straight tube-like electricity-saving lamp (2) is luminous, is used for illuminating subject from top, and the external lamp of turn turns to the incident direction of adjusting (3) scalable light.If the video switch button is switched to " show stand " position, then the vision signal of camera output is through terminal 15 outputs.
If with VCD (8) video disc player power connection, video switch button (4) should be dialled to position, " VCD " (8), and the video/audio signal of VCD (8) output at this moment is through terminal (15), (16) output.
Claims (1)
1, a kind of video showing platform, this video showing platform comprises that the 220V civil power is divided into four the tunnel behind fuse, and the first via is through camera switch (5) control, behind power transformer (11), full-bridge rectification and three terminal regulator (17), output 12V voltage provides operating voltage for camera (1); It is characterized in that second and third road respectively through Built-in light (6), external lamp switch (7) control, behind Built-in light electric ballast (12), external lamp electronic ballast (13), give external lamp (2) each annular electricity-saving lamp (14) power supply; The four the tunnel provides operating voltage for VCD (8), and the signal of camera (1) and VCD (8) output through video switch button (4) control, exports terminal to by video output terminal (15), audio output (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420089791 CN2779524Y (en) | 2004-08-25 | 2004-08-25 | Video display platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420089791 CN2779524Y (en) | 2004-08-25 | 2004-08-25 | Video display platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2779524Y true CN2779524Y (en) | 2006-05-10 |
Family
ID=36753610
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420089791 Expired - Fee Related CN2779524Y (en) | 2004-08-25 | 2004-08-25 | Video display platform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2779524Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102158639A (en) * | 2010-02-12 | 2011-08-17 | 王应华 | Display device and video display method thereof |
-
2004
- 2004-08-25 CN CN 200420089791 patent/CN2779524Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102158639A (en) * | 2010-02-12 | 2011-08-17 | 王应华 | Display device and video display method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |