CN205028532U - Persistence of vision demonstrates appearance - Google Patents
Persistence of vision demonstrates appearance Download PDFInfo
- Publication number
- CN205028532U CN205028532U CN201520799364.0U CN201520799364U CN205028532U CN 205028532 U CN205028532 U CN 205028532U CN 201520799364 U CN201520799364 U CN 201520799364U CN 205028532 U CN205028532 U CN 205028532U
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- CN
- China
- Prior art keywords
- shell
- light source
- draw
- groove
- wheel disc
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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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Abstract
The utility model relates to a teaching aid of middle school teaching usefulness, specifically speaking is a persistence of vision demonstrates appearance. Including base, fixed mounting on the base the shell and set up the light source in the shell, the shell is the pipe column structure, the front end fixed mounting of shell has a projection curtain plate, the shell level sets up, and the pivot is installed through the axle bed to the lower extreme of shell, and the front end fixed mounting of pivot has the rim plate, and the handle that is used for driving the pivot is installed to the rear end of pivot, is provided with the plug -in card window of fretwork on the rim plate, is provided with the draw -in groove on the shell, between projection curtain plate and the light source, and the rim plate setting is in the draw -in groove, be provided with the bayonet socket piece on the inner wall of draw -in groove, the both sides of bayonet socket piece respectively set up one establishes ties at the electrically conductive shell fragment of the power end of light source, and the marginal fixed mounting of rim plate has the contact that matees electrically conductive shell fragment. Its simple structure, easy preparation, easy operation can explain in the teaching very directly perceivedly and improve persistence of vision's principle interest in learning, strengthen learning result.
Description
Technical field
The utility model relates to the teaching aid of middle school teaching, specifically a kind of persistence of vision demonstrator.
Background technology
Human eye is when observing scene, and light signal successor cerebral nerve, need through one of short duration period, and after the effect of light terminates, visual image does not disappear immediately, and this phenomenon of vision is then called as " persistence of vision ".In the middle school teaching stage, multidisciplinary principle or the application relating to persistence of vision such as " nature ", " physics ", " physiological hygiene ".But owing to lacking directly perceived, effective demonstration instrument, be difficult to the learning interest of mobilizing students, knowledge point is grasped firm not, is more difficult to play creationary application.
Summary of the invention
The purpose of this utility model be to provide a kind of structure simple, easily make, persistence of vision principle demonstration instrument simple to operate, reach the object explaining persistence of vision principle intuitively to student, so that improve learning interest, consolidate learning outcome.
In order to reach above object, technical scheme that the utility model adopts is: a kind of persistence of vision demonstrator described in the utility model comprises base, the light source being fixedly mounted on the shell on base and arranging in the enclosure, described shell is round tube shape structure, the front end of shell is installed with projection screen plate, described shell is horizontally disposed with, the lower end of shell is provided with rotating shaft by axle bed, the front end of described rotating shaft is installed with wheel disc, the rear end of rotating shaft is provided with the handle for drive shaft, described wheel disc is provided with the plug-in card window of hollow out, on shell, draw-in groove is provided with between projection screen plate and light source, wheel disc is arranged in draw-in groove, the inwall of described draw-in groove is provided with bayonet socket block, the both sides of bayonet socket block respectively arrange an electroconductive elastic sheet, described electroconductive elastic sheet is connected on the power end of light source, the edge of wheel disc is installed with the contact of coupling electroconductive elastic sheet, the two ends of described contact with the two sides laying respectively at wheel disc, the collision block be made up of conductive material, the collision block electrical connection at contact two ends.
The rear end of described shell is provided with reflective spherical shell, and the inwall of described reflective spherical shell is provided with reflector layer, and described light source is arranged on the focus place of reflective spherical shell.
The beneficial effects of the utility model are: its structure is simple, easily make, simple to operate, can explain the principle of persistence of vision very intuitively, improve learning interest, consolidate learning outcome in teaching.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment.
Fig. 2 is the right view of Fig. 1 embodiment.
Fig. 3 is the A portion close-up schematic view of Fig. 1.
Embodiment
As Fig. 1---shown in Fig. 3, the light source 5 that persistence of vision principle demonstration instrument described in the utility model comprises base 9, is fixedly mounted on the shell 1 on base 9 and is arranged in shell 1, this light source 5 can adopt ordinary incandescent lamp to steep, also LED or other electric light sources can be adopted, described shell 1 is round tube shape structure, the front end of shell 1 is installed with projection screen plate 3, and projection screen plate 3 adopts the trnaslucent materials such as ground glass to make.The rear end of shell 1 is provided with reflective spherical shell 11, and the inwall of described reflective spherical shell 11 is provided with reflector layer, and described light source 5 is arranged on the focus place of reflective spherical shell 11.
Described shell 1 is horizontally disposed with, and the lower end of shell 1 is provided with rotating shaft 21 by axle bed, and the front end of described rotating shaft 21 is installed with wheel disc 2, and the rear end of rotating shaft 21 is provided with handle 8, and turning handle 8 can drive wheel disc 2 to rotate.Described wheel disc 2 is provided with the plug-in card window 22 of hollow out, for fixing various figure card.On shell 1, between projection screen plate 3 and light source 5, be provided with draw-in groove, wheel disc 2 is arranged in draw-in groove, and rotates in draw-in groove; The inwall of described draw-in groove is provided with bayonet socket block 7, the both sides of bayonet socket block 7 respectively arrange an electroconductive elastic sheet 71,72, two electric shell fragment 71,72 mutually insulateds, described electroconductive elastic sheet 71,72 is connected on the power end of light source 5, can connect the power supply of light source 5 when connecting two electroconductive elastic sheet 71,72.The edge of wheel disc 2 is installed with the contact 6 of coupling electroconductive elastic sheet 71,72, the two ends of described contact 6 with the two sides laying respectively at wheel disc 2, the collision block be made up of conductive material, the collision block electrical connection at contact 6 two ends.Collision block when wheel disc 2 rotates time on contact 6 can touch electroconductive elastic sheet 71,72, by its conducting, connects the power supply of light source 5.
Described wheel disc 2 comprises the torus concentric with rotating shaft 21 and is connected to the spoke 23 between rotating shaft 21 and torus, and described toric edge is provided with the strip crevice towards plug-in card window 22, spoke 23 is provided with chute 24.Figure card can be inserted easily like this from the round edge of wheel disc 2.
During use, multiple figure cards of same object different conditions are made of lighttight materials such as presspapers, as model, slide on plug-in card window 22 by model by strip crevice and chute 24, light gets to graphics card plate shape model projecting again and projection screen plate 3 can demonstrate hollow out in the middle of model.When slow rotation wheel disc 2, student it is seen that different, the respective independently figure of difference by projection screen plate 3, is improved rotating speed gradually, then can see continuous print animation patterns on projection screen plate 3.
Claims (2)
1. a persistence of vision demonstrator, comprise base (9), the light source (5) being fixedly mounted on the shell (1) on base (9) and being arranged in shell (1), described shell (1) is round tube shape structure, the front end of shell (1) is installed with projection screen plate (3), it is characterized in that: described shell (1) is horizontally disposed with, the lower end of shell (1) is provided with rotating shaft (21) by axle bed, the front end of described rotating shaft (21) is installed with wheel disc (2), the rear end of rotating shaft (21) is provided with the handle (8) for drive shaft (21), described wheel disc (2) is provided with the plug-in card window (22) of hollow out, on shell (1), draw-in groove is provided with between projection screen plate (3) and light source (5), wheel disc (2) is arranged in draw-in groove, the inwall of described draw-in groove is provided with bayonet socket block (7), the both sides of bayonet socket block (7) respectively arrange an electroconductive elastic sheet (71,72), described electroconductive elastic sheet (71,72) is connected on the power end of light source (5), the edge of wheel disc (2) is installed with the contact (6) of coupling electroconductive elastic sheet (71,72), the two ends of described contact (6) with the two sides laying respectively at wheel disc (2), the collision block be made up of conductive material, the collision block electrical connection at contact (6) two ends.
2. a kind of persistence of vision demonstrator according to claim 1, it is characterized in that: the rear end of described shell (1) is provided with reflective spherical shell (11), the inwall of described reflective spherical shell (11) is provided with reflector layer, and described light source (5) is arranged on the focus place of reflective spherical shell (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520799364.0U CN205028532U (en) | 2015-10-16 | 2015-10-16 | Persistence of vision demonstrates appearance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520799364.0U CN205028532U (en) | 2015-10-16 | 2015-10-16 | Persistence of vision demonstrates appearance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205028532U true CN205028532U (en) | 2016-02-10 |
Family
ID=55261048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520799364.0U Expired - Fee Related CN205028532U (en) | 2015-10-16 | 2015-10-16 | Persistence of vision demonstrates appearance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205028532U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106504616A (en) * | 2016-11-30 | 2017-03-15 | 浙江海洋大学 | A kind of space-time experimental provision |
| CN108877316A (en) * | 2018-07-06 | 2018-11-23 | 王伟 | A kind of history teaching aid |
| CN112598941A (en) * | 2020-12-18 | 2021-04-02 | 西安外事学院 | Auxiliary device is used in french teaching |
-
2015
- 2015-10-16 CN CN201520799364.0U patent/CN205028532U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106504616A (en) * | 2016-11-30 | 2017-03-15 | 浙江海洋大学 | A kind of space-time experimental provision |
| CN106504616B (en) * | 2016-11-30 | 2019-03-05 | 浙江海洋大学 | A kind of space-time experimental provision |
| CN108877316A (en) * | 2018-07-06 | 2018-11-23 | 王伟 | A kind of history teaching aid |
| CN112598941A (en) * | 2020-12-18 | 2021-04-02 | 西安外事学院 | Auxiliary device is used in french teaching |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160210 Termination date: 20161016 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |