CN201549112U - Visual persistence phenomenon demonstration instrument - Google Patents
Visual persistence phenomenon demonstration instrument Download PDFInfo
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- CN201549112U CN201549112U CN2009202014268U CN200920201426U CN201549112U CN 201549112 U CN201549112 U CN 201549112U CN 2009202014268 U CN2009202014268 U CN 2009202014268U CN 200920201426 U CN200920201426 U CN 200920201426U CN 201549112 U CN201549112 U CN 201549112U
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- annulus
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- motor
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Abstract
The utility model belongs to a teaching instrument, in particular to a visual persistence phenomenon demonstration instrument. The demonstration instrument includes a frame (1), a dial (2), a lower ring (3), and an upper ring (4); a motor (5) is arranged on the frame (1); the dial (2) is fixed on the motor (5); driven by the motor (5), the dial (2) can rotate above the frame (1); the lower ring (3) is fixed on the dial (2) by an angle; the lower ring (3) is fixed on the upper ring (4) by an angle; and the lower ring (3) and the upper ring (4) are coated by different colors. The visual persistence phenomenon demonstration instrument has the advantages of simple structure, easy operation, and obvious effect, which leads the students to intuitively observe the visual persistence phenomenon and enriches the teaching contents.
Description
Technical field
The utility model belongs to a kind of instruments used for education, particularly a kind of persistence of vision phenomenon demonstrator.
Background technology
The human image of seeing temporarily can the preservation, after image disappeared, image before also can temporarily rest at the moment.Persistence of vision phenomenon that Here it is.The vision of human eye has the effect of persisting.Object is imaging on retina, disappears in case ambient light stimulates, and as also disappearance thereupon, but optic nerve photic stimuli impression can keep about 0.1 second time, the just eye storage characteristic of human eye.Therefore if two width of cloth picture interval times that successively meet one's eyes less than 0.1 second, optic nerve can be two width of cloth pictures " stack ".Motion picture projection has utilized eye storage characteristic exactly: each width of cloth picture is static on the film, but when projector allows the light stimulus optic nerve with the speed of per second 24 width of cloth pictures, only had an appointment 0.01 second in the interval that two width of cloth pictures substitute, this dynamic effect of screen picture just occurred.In daily life, many phenomenons are relevant with persistence of vision.For example: the daylight lamp that we use will extinguish 100 times p.s., and because human eye has the characteristic of persistence of vision, in the ordinary course of things, we discover flashing less than light.At present, in the teaching process of middle school physics,, adopt the preach method directly to impart knowledge to one's students usually for more common persistence of vision phenomenon, or for the example in a little real lifes, but the student understands or is more abstract.
The utility model content
The purpose of this utility model is to provide a kind of persistence of vision phenomenon demonstrator, and this demonstrator can allow the student observe the persistence of vision phenomenon intuitively on the classroom.
Above-mentioned technical purpose of the present utility model is achieved by the following technical programs: a kind of persistence of vision phenomenon demonstrator, comprise frame, rotating disk, following annulus, go up annulus, motor is set on the frame, rotating disk is fixed on the motor, under the drive of motor, rotating disk can rotate above frame, and following annulus and rotating disk are a fixed angle on rotating disk, and last annulus and following annulus are on the fixed angle on the annulus.
As the optimization of technique scheme, described annulus down and rotating disk are 30 degree and are fixed on the rotating disk.
As the optimization of technique scheme, the described annulus of going up is on the fixing upward annulus of 30 degree with following annulus.
As the optimization of technique scheme, described annulus down and described going up on the annulus scribble different colours.
As the optimization of technique scheme, on the described frame variator is set, can control the rotating speed of rotating disk by regulating variator.
Variator is regulated in the demonstration beginning, allows rotating disk slowly run above frame, can see that going up annulus is opening the certain angle rotation with following annulus.Regulate variator, accelerate rotary speed gradually, can see that following annulus is pasting rotating disk beating to no point of fixity on rotating disk, last annulus is not pasting annulus to beat with having point of fixity.When reaching certain movement speed, the point of fixity on last annulus and the following annulus stops the of short duration time in people's vision, when also not disappearing after some appearance again, the observer visually can with 2 mixed for a bit, feel that whole ring beats pasting rotating disk.
The utility model is simple in structure, operates easyly, and effect is obvious, makes the student observe the persistence of vision phenomenon intuitively, has enriched the content of courses.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
In the accompanying drawing: 1. frame, 2. rotating disk 3. descends annulus, 4. goes up annulus, 5. motor, 6. variator, 7. switch, 8. power lead.
Embodiment
Below in conjunction with accompanying drawing the present invention is described in further detail.
This specific embodiment only is an explanation of the invention; it is not a limitation of the present invention; those skilled in the art can make the modification that does not have creative contribution to present embodiment as required after reading this instructions, but as long as all are subjected to the protection of Patent Law in claim scope of the present invention.
As shown in Figure 1, frame 1 is an openable rectangular parallelepiped wooden case, and motor 5 is installed on the frame 1, and the upper bottom surface of frame 1 is passed in the rotating shaft of motor 5.Variator 6 and switch 7 are installed on the frame 1, and the control gear of variator 6 and switch 7 then is installed in the front of frame 1.The hole that power supply source line 8 passes is offered at the back side of frame 1, and power lead 8 passes this hole and is connected with external power supply.The rotating shaft of motor 5 passes the part of frame 1 upper bottom surface rotating disk 2 is installed, and rotating disk 2 is made of plastics.Following annulus 3 and last annulus 4 be colored yellow and blueness respectively, and size is slightly smaller than rotating disk 2, and quality is a copper.Following annulus 3 is 30 degree with rotating disk 2 and is fixed on the rotating disk, and last annulus 4 is 30 with following annulus 3 and spends fixing going up on the annulus 3.
Claims (6)
1. persistence of vision phenomenon demonstrator, it is characterized in that: described demonstrator comprises frame (1), rotating disk (2), following annulus (3), goes up annulus (4), motor (5) is set on the frame (1), rotating disk (2) is fixed on the motor (5), under the drive of motor (5), rotating disk (2) can rotate in frame (1) top, and following annulus (3) is a fixed angle on rotating disk (2) with rotating disk (2), and last annulus (4) is on the annulus on the fixed angle (4) with following annulus (3).
2. a kind of persistence of vision phenomenon demonstrator as claimed in claim 1 is characterized in that: described annulus (3) down is 30 degree with rotating disk (2) and is fixed on the rotating disk (2).
3. a kind of persistence of vision phenomenon demonstrator as claimed in claim 1 or 2 is characterized in that: the described annulus (4) of going up is on the fixing upward annulus (4) of 30 degree with following annulus (3).
4. a kind of persistence of vision phenomenon demonstrator as claimed in claim 1 is characterized in that: described annulus (3) down scribbles different colours with described going up on the annulus (4).
5. a kind of persistence of vision phenomenon demonstrator as claimed in claim 3 is characterized in that: described annulus (3) down scribbles different colours with described going up on the annulus (4).
6. a kind of persistence of vision phenomenon demonstrator as claimed in claim 1 is characterized in that: variator (6) is set on the described frame (1), can controls the rotating speed of rotating disk (2) by regulating variator (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202014268U CN201549112U (en) | 2009-11-28 | 2009-11-28 | Visual persistence phenomenon demonstration instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202014268U CN201549112U (en) | 2009-11-28 | 2009-11-28 | Visual persistence phenomenon demonstration instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201549112U true CN201549112U (en) | 2010-08-11 |
Family
ID=42604290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202014268U Expired - Fee Related CN201549112U (en) | 2009-11-28 | 2009-11-28 | Visual persistence phenomenon demonstration instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201549112U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106157754A (en) * | 2016-08-22 | 2016-11-23 | 谢冰 | A kind of sight equation demonstration instrument for teaching |
| CN108335594A (en) * | 2015-09-17 | 2018-07-27 | 皖西学院 | A kind of motor apparatus for demonstrating having polycyclic loop structure |
| CN108550308A (en) * | 2018-03-05 | 2018-09-18 | 西安理工大学 | A kind of device realized object vision and slowed down |
-
2009
- 2009-11-28 CN CN2009202014268U patent/CN201549112U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108335594A (en) * | 2015-09-17 | 2018-07-27 | 皖西学院 | A kind of motor apparatus for demonstrating having polycyclic loop structure |
| CN106157754A (en) * | 2016-08-22 | 2016-11-23 | 谢冰 | A kind of sight equation demonstration instrument for teaching |
| CN108550308A (en) * | 2018-03-05 | 2018-09-18 | 西安理工大学 | A kind of device realized object vision and slowed down |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100811 Termination date: 20111128 |