CN212460951U - Stroboscopic disc device for demonstrating persistence of vision - Google Patents
Stroboscopic disc device for demonstrating persistence of vision Download PDFInfo
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- CN212460951U CN212460951U CN202021170889.5U CN202021170889U CN212460951U CN 212460951 U CN212460951 U CN 212460951U CN 202021170889 U CN202021170889 U CN 202021170889U CN 212460951 U CN212460951 U CN 212460951U
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- 230000002688 persistence Effects 0.000 title claims abstract description 12
- 230000008878 coupling Effects 0.000 claims abstract description 15
- 238000010168 coupling process Methods 0.000 claims abstract description 15
- 238000005859 coupling reaction Methods 0.000 claims abstract description 15
- 230000000694 effects Effects 0.000 abstract description 6
- 230000003760 hair shine Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 4
- 230000000007 visual effect Effects 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
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Abstract
A stroboscopic disc device for demonstrating persistence of vision belongs to the field of scientific and educational instruments and comprises a frequency-adjustable flash lamp and a model turntable with adjustable rotating speed, wherein the frequency-adjustable flash lamp is positioned above the model turntable, and a lamp panel adopting an LED illuminating lamp is connected with a control circuit with adjustable output duty ratio; the model turntable is composed of an animation model disc and a rotating mechanism, the rotating mechanism is composed of a direct current speed reducing motor, a power supply and a rotating speed regulator in a conventional mode, the animation model disc is connected with an output shaft of the direct current speed reducing motor through a shaft coupling mechanism, one end of the shaft coupling mechanism is provided with a shaft hole and a fastening bolt connected with the output shaft, and the other end of the shaft coupling mechanism is provided with a flange plate and a fastening hole connected with the animation model disc. The utility model discloses the stroboscopic lamp produces the flash of light of certain frequency, certain signal duty ratio, shines on the disc of putting animation model, and the disc is at the uniform velocity rotatory with certain speed, and when the flash frequency of disc rotational speed and flash light satisfied the integral multiple relation, the observer can utilize the naked eye to see the animation effect on the whole disc.
Description
Technical Field
The utility model belongs to science and education instrument field relates to a device of demonstration persistence of vision phenomenon.
Background
The phenomenon of persistence of vision means that the picture effect generated inside the eyes of a person cannot disappear immediately when the eyes observe the outside world, but stays for a certain period of time (0.1 second to 0.4 second), and typical applications of the phenomenon are film movies, displays and the like. In the teaching process, in order to demonstrate the phenomenon of persistence of vision, animation characters with continuous actions are drawn by means of tools such as paper sheets and the like, and the animation characters are turned rapidly or a disc is rotated manually; the demonstration can also be realized by observing the continuously changing animation patterns of the rotation through a tiny slit by using the shielding principle.
The above conventional method has the following problems: 1. the demonstration effect is related to the drawing technical level of a drawer, and the phenomenon demonstration is not smooth due to the fact that the page turning speed is not easy to control during demonstration; 2. the observation area of the slit method is limited, and the demonstration effect can be seen only in a small area and at a small angle; 3. the two-dimensional animation effect is not visual enough, and the appreciation is poor; 4. the process of occlusion is also seen, and the observation always has a disturbing feeling.
Disclosure of Invention
Aiming at the defects of the traditional demonstration method, the invention provides the animation continuous action demonstration device which utilizes the frequency-adjustable flashing light and the rotating speed-adjustable disc to realize the principle of persistence of vision.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a stroboscopic disc device for demonstrating persistence of vision is composed of a frequency-adjustable flash lamp and a model turntable with adjustable rotation speed, wherein the frequency-adjustable flash lamp is positioned above the model turntable, and a lamp panel adopting an LED illuminating lamp is connected with a control circuit with adjustable output duty ratio; the model turntable is composed of an animation model disc and a rotating mechanism, the rotating mechanism is composed of a direct current speed reducing motor, a power supply and a rotating speed regulator in a conventional mode, the animation model disc is connected with an output shaft of the direct current speed reducing motor through a shaft coupling mechanism, one end of the shaft coupling mechanism is provided with a shaft hole and a fastening bolt which are connected with the output shaft, and the other end of the shaft coupling mechanism is provided with a flange plate and a fastening hole which are connected with the animation model disc.
The animation model disc is a disc adhered with a two-dimensional animation pattern or a disc fixed with a continuously-changing three-dimensional model.
The output frequency of the control circuit is 24Hz, and the duty ratio is 1: 10; the output speed of the speed regulator is 60 RPM.
The utility model discloses the stroboscopic lamp produces the flash of light of certain frequency, certain signal duty ratio, shines on the disc of putting animation model, and the disc is at the uniform velocity rotatory with certain speed, and when the flash frequency of disc rotational speed and flash light satisfied the integral multiple relation, the observer can utilize the naked eye to see the animation effect on the whole disc. The model turntable in the utility model rotates at a constant speed, thereby realizing the purpose of smooth demonstration; the animation model is placed on the disc without being shielded by the slit, so that the user can watch the animation model at a viewing angle of 180 degrees, the purpose of large visual range is realized, and the animation model has high ornamental value; even if the disc of the model is not rotated, the model can be used as artistic furnishings and has certain ornamental value.
Drawings
Fig. 1 is a schematic structural view of a preferred embodiment of a strobe disk device for demonstrating persistence of vision of the present invention.
Fig. 2 is a schematic structural view of the shaft coupling mechanism in the embodiment of fig. 1.
In the figure: 1. lamp panel, 2, lamp holder, 3, animation model dish, 4, the shaft coupling mechanism. 5. A case. 6. Fastening hole, 7, flange, 8, shaft hole, 9, fastening bolt.
Detailed Description
Fig. 1 shows an embodiment of the present invention, and the apparatus includes a lamp panel 1, a lamp holder 2, an animation model panel 3, and a case 5 in which a strobe control circuit and a rotating mechanism are installed. Wherein,
the stroboscopic lamp control circuit comprises an LED lamp power supply driver and a frequency controller; the frequency controller controls the LED lamp power supply driver to output driving current with set frequency and duty ratio, and the output driving current drives the lamp panel 1. A classical 555-based timer is adopted to form the frequency control circuit with adjustable duty ratio, and the controllable silicon is used as the power driver of the LED lamp to adjust the duty ratio to 1:10, the output power of the stroboscopic lamp control circuit reaches more than 1A. The lamp panel 1 is a lamp panel of a high-power LED illuminating lamp.
The rotating mechanism is conventionally composed of a direct current speed reducing motor, a power supply and a rotating speed regulator, the rotating speed output by the direct current speed reducing motor is not lower than 60RPM, an output shaft of the direct current speed reducing motor is fixed with the disk center of the animation model disk 3 through a shaft coupling mechanism, and the shaft coupling mechanism is shown in figure 2. One end of the shaft coupling mechanism is provided with a shaft hole 8 and a fastening bolt 9 which are connected with an output shaft of the direct current speed reducing motor, and the other end of the shaft coupling mechanism is provided with a flange 7 and a fastening hole 6 which are connected with the animation model disc 3. The shaft hole 8 is inserted with an output shaft of the direct current speed reducing motor and is fastened by a fastening bolt 9; the flange 7 is fixed under the animation model disc 3 by screws through the fastening holes 6.
The animation model disc 3 is formed by equally dividing the disc into equal divided areas which are the same as the total frame number of the animation to be demonstrated, and bonding or directly curing the two-dimensional picture or three-dimensional model animation content of each manufactured frame to the corresponding area of the disc.
Claims (3)
1. The utility model provides a stroboscopic disc device for demonstrating persistence of vision phenomenon, comprises adjustable frequency flash lamp and the adjustable model carousel of rotational speed, its characterized in that: the adjustable-frequency flash lamp is positioned above the model turntable and is connected with the control circuit with adjustable output duty ratio by adopting a lamp panel of an LED illuminating lamp; the model turntable is composed of an animation model disc and a rotating mechanism, the rotating mechanism is formed by electrically connecting a direct current speed reducing motor, a power supply and a rotating speed regulator, the animation model disc is connected with an output shaft of the direct current speed reducing motor through a shaft coupling mechanism, one end of the shaft coupling mechanism is provided with a shaft hole and a fastening bolt which are connected with the output shaft, and the other end of the shaft coupling mechanism is provided with a flange plate and a fastening hole which are connected with the animation model disc.
2. A strobe disk apparatus for demonstrating persistence of vision as claimed in claim 1, wherein: the animation model disc is a disc adhered with a two-dimensional animation pattern or a disc fixed with a continuously-changing three-dimensional model.
3. A strobe disk apparatus for demonstrating persistence of vision as claimed in claim 1 or 2, wherein: the output frequency of the control circuit is 24Hz, and the duty ratio is 1: 10; the output speed of the speed regulator is 60 RPM.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021170889.5U CN212460951U (en) | 2020-06-22 | 2020-06-22 | Stroboscopic disc device for demonstrating persistence of vision |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021170889.5U CN212460951U (en) | 2020-06-22 | 2020-06-22 | Stroboscopic disc device for demonstrating persistence of vision |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212460951U true CN212460951U (en) | 2021-02-02 |
Family
ID=74471270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021170889.5U Expired - Fee Related CN212460951U (en) | 2020-06-22 | 2020-06-22 | Stroboscopic disc device for demonstrating persistence of vision |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212460951U (en) |
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2020
- 2020-06-22 CN CN202021170889.5U patent/CN212460951U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210202 |
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| CF01 | Termination of patent right due to non-payment of annual fee |