CN2580466Y - Laser head repairing photoscope for video disc player - Google Patents
Laser head repairing photoscope for video disc player Download PDFInfo
- Publication number
- CN2580466Y CN2580466Y CN 02287734 CN02287734U CN2580466Y CN 2580466 Y CN2580466 Y CN 2580466Y CN 02287734 CN02287734 CN 02287734 CN 02287734 U CN02287734 U CN 02287734U CN 2580466 Y CN2580466 Y CN 2580466Y
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- CN
- China
- Prior art keywords
- lens
- laser head
- camera
- video disc
- utility
- 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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- Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
Abstract
The utility model relates to a laser head repairing photoscope for a video disc player, which is characterized in that one end which is used for arranging the laser head is provided with a camera head, and a lens which has close range magnification action is arranged between the camera head and the laser head. After light rays which pass through the laser head are magnified by utilizing the action of the lens, the real-time camera shot to the light rays is carried out by the camera head, and a picture of the camera head is displayed by a displayer. The lens is connected with the camera head, and is fixed on a support frame of which the position is adjusted by an adjusting bolt, which is used for adjusting focus to precisely display a distinct light spot and a light target position on the displayer. The other end of the laser head is provided with a light source which lightens towards the lens. The accurate light use is ensured by utilizing the condensation action of the light source. The utility model has the advantages that the utility model is suitable for the maintenance of video disc players with various types and optical drive laser heads, the utility model has the advantages of simple structure, low cost, and self-contained light source, and the utility model can be used under various environments, so the use and the adjustment are convenient.
Description
Technical field
The utility model relates to the video disc player laser head maintenance diascope that a kind of laser head that is used for video disc player keeps in repair.
Background technology
The laser head of existing video disc player is a fallible component, and after use after a while, laser tube will wear out, and its emitted laser power causes the machine-readable dish difficulty of video disc inadequately, even can not recognize dish.And most maintenace points is not owing to there is specialized equipment therefore just can't laser head to be keeped in repair, and the laser head that can only more renew causes increase client financial burden, and resource is wasted in a large number.
Goal of the invention
The purpose of this utility model just provides a kind of can be exactly the image of the relative position of three laser spots in the video disc player laser head and light target (photoreceiver) being outputed on the display such as televisor, and the video disc player laser head maintenance diascope of reliable image information is provided for maintenance video disc player laser head.
Solution of the present utility model is such: at an end of placing laser head camera is arranged, be placed with the closely camera lens of amplification between camera and laser head.Utilize the effect of camera lens to carry out real-time photography by camera to light, show by the image of display with camera by the light amplification back of laser head.
Be connected with camera at described camera lens, be fixed on on the support of regulating the bolt adjusting position.To focus, luminous point and light target position show on display exactly clearly.
The other end at laser head is provided with according to the light source to camera lens.Utilize the optically focused effect assurance camera of light source correctly to use up.
The utility model has the advantages that and utilize optical principle, make it be applicable to the maintenance of various model video disc players, laser pick-up head, needn't demolition any parts of shaven head, simple in structure, cost is low; Automatic light source can use by various environment use and easy to adjust down.
Description of drawings
Accompanying drawing is embodiment of the present utility model.
Accompanying drawing 1 is a structural representation of the present utility model.
Accompanying drawing 2 is structural representations of camera lens 3.
Accompanying drawing 3 is optical schematic diagrams of camera lens 3.
Embodiment
The utility model includes switch 1, switch 2, camera lens 3, camera 4, bracket adjustment bolt 5, shot-light support 6, outlet 7, viewport 8, potentiometer 9, shot-light 10, camera lens bonnet 11, plano-convex lens 12, positive meniscus shaped lens 13, biconcave lens 14, eyeglass sleeve 15, eyeglass rubber ring 16, camera lens protecgulum 17, biconcave lens 18,19 of plano-convex lenss, plano-convex lens 20.
At an end of placing laser head camera 4 is arranged, between camera 4 and laser head, be placed with the closely camera lens 3 of amplification.
Be connected with camera 4 at described camera lens 3, be fixed on on the support of regulating bolt 5 adjusting positions.Regulate bolt 5, scalable focuses on.
The other end at laser head is provided with according to the light source 10 to camera lens 3.
Described camera lens 3 is assembled by plano-convex lens 12, positive meniscus shaped lens 13, plano-convex lens 19, plano-convex lens 20 successively.
Between plano-convex lens 12 and positive meniscus shaped lens 13, biconcave lens 18 is installed; Between plano-convex lens 19 and plano-convex lens 20, biconcave lens 14 is installed.After adding above-mentioned two lens, can further strengthen image definition.
In the accompanying drawing 3, A is the real image plane that the video disc player laser head forms, a is that real image plane that the video disc player laser head forms forms new real image plane through camera lens 3 (this real image plane is projected on the workplace of camera, camera outputs to this image information in the TV and is presented on the screen), B is the equivalent object lens of camera lens 3, f is the object space focal length of equivalent object lens, and F1 is picture side's focal length of equivalent object lens.
The utility model job step and principle are:
1, earlier with the corresponding pin energized of the laser tube in the video disc player laser head, the object lens of video disc player laser head are aimed at the viewport 8 of this instrument downwards, the image information of the light target in the video disc player laser head and three laser spots becomes real image through the workplace of optical processing in camera of camera lens 3 again.Open switch 1, camera begins that the real image picture signal is exported to display and is presented on the screen, opens switch 2, and shot-light 10 is bright, adjusts camera support bracket bolt 5 and changes over the image position, up to clear picture.Regulate shot-light support 6 and change the shot-light firing angles and reduce the poor light influence, make the light target image optimum.
2, adjust potentiometer 9, change and flow through the laser head current value, the control point brilliance is eliminated the influence of scattered light, and is moderate and clear up to three point brilliances.
By above adjustment, three luminous points of video disc player laser head and the relative position of light target just can clear being presented on the display.
Claims (5)
1, a kind of video disc player laser head maintenance diascope is characterized in that at an end of placing laser head camera (4) being arranged, and has been placed with the closely camera lens of amplification (3) between camera (4) and laser head.
2, video disc player laser head maintenance diascope according to claim 1 is characterized in that being connected with camera (4) at described camera lens (3), is fixed on on the support of regulating bolt (5) adjusting position.
3, described video disc player laser head maintenance diascope according to claim 1 and 2 is characterized in that being provided with according to the light source (10) to camera lens (3) at the other end of laser head.
4, video disc player laser head maintenance diascope according to claim 3 is characterized in that described camera lens (3) is assembled by plano-convex lens (12), positive meniscus shaped lens (13), plano-convex lens (19), plano-convex lens (20) successively.
5, video disc player laser head maintenance diascope according to claim 4 is characterized in that between plano-convex lens (12) and positive meniscus shaped lens (13) biconcave lens (18) being installed; Between plano-convex lens (19) and plano-convex lens (20), biconcave lens (14) is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02287734 CN2580466Y (en) | 2002-11-28 | 2002-11-28 | Laser head repairing photoscope for video disc player |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02287734 CN2580466Y (en) | 2002-11-28 | 2002-11-28 | Laser head repairing photoscope for video disc player |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2580466Y true CN2580466Y (en) | 2003-10-15 |
Family
ID=33747918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02287734 Expired - Fee Related CN2580466Y (en) | 2002-11-28 | 2002-11-28 | Laser head repairing photoscope for video disc player |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2580466Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102049390A (en) * | 2010-10-26 | 2011-05-11 | 安徽捷迅光电技术有限公司 | Adjustable CCD lens fixing bracket |
-
2002
- 2002-11-28 CN CN 02287734 patent/CN2580466Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102049390A (en) * | 2010-10-26 | 2011-05-11 | 安徽捷迅光电技术有限公司 | Adjustable CCD lens fixing bracket |
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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 |