Interference and Diffraction of Waves
Optics · Interactive
- DimensionsSubject to on-site plan
- PresentationInteractive
- PricingQuoted by manufacture spec
Interference and Diffraction of Waves is a hands-on, mechanical & electromechanical interactive exhibit manufactured by Hefei Panda for science centers, children’s museums, discovery centers, STEM learning centers and family entertainment centers. Engineered for durable, robust, low-maintenance, high-traffic gallery installation, it turns abstract scientific concepts into direct, interactive visitor exploration. Hefei Panda is a global exhibit manufacturer exporting hands-on science displays to 50+ countries, with in-house engineering, fabrication, installation and commissioning.
Exhibit Summary
Interference and Diffraction of Waves is a Interactive interactive exhibit in the Optics category, designed for science centers, children’s museums, discovery centers, STEM learning centers and family entertainment centers. Built as a hands-on, mechanical & electromechanical display, it turns an abstract scientific concept into direct, interactive visitor exploration, and is engineered for durable, low-maintenance, high-traffic gallery use.
Scientific Principle
The interference and diffraction of water waves are used to show the phenomena of light interference and diffraction, allowing the audience to watch and grasp the principles of light interference and diffraction.
Operation
1. Interference of light Thomas Young used the superposition concept of waves to explain the interference phenomenon of light well. Assuming that light is a wave that propagates some kind of vibration, then the light wave emitted from the linear light source S at any time will be transmitted to the two slits S1 and S2 in front at the same time. These two slits become two total vibration situations. are the same wave source, as revealed in Figure (b). The waves emitted from them are superimposed on the screen. Where the wave crests overlap and the wave troughs overlap, the light strengthens each other; where the wave crests overlap or the wave troughs overlap, the light cancels or weakens each other, thus forming alternating light and dark stripes. This happens when two or more light waves meet and superimpose under certain conditions, causing the redistribution of light intensity, thus forming a stable and uneven light intensity distribution in the superposition area, with alternating light and dark or colored stripes appearing. This phenomenon is called interference of light. 2. Diffraction of light Diffraction is a propagation behavior common to all waves. It refers to the phenomenon that when light encounters an obstacle or a small hole during propagation, the light will deviate from the straight path of propagation and propagate behind the obstacle. Diffraction of light and interference of light prove that light is wavelike. In 1655, Grimaldi, a professor of mathematics at the University of Bologna in Italy, first discovered the diffraction phenomenon of light when observing the shadow of a small stick placed in a light beam. After experiments, he concluded that light is a fluid that can move in waves, and the different colors of light are the result of different wave frequencies. Grima was the first to propose the concept of "diffraction of light" and was the earliest advocate of the wave theory of light. In 1801, British physicist Thomas Young successfully observed the interference of light in the laboratory. Thomas Young projected a beam of light onto a screen with a hole, and the hole became a "point light source." After the light comes out of the small hole, it hits the two small holes of the second screen. The two small holes are very close (about 0.1mm) and the distance from the previous small hole is equal. In the experiment, Thomas Young used slits instead of small holes to conduct the experiment as revealed in Figure (a), which produced alternating light and dark colored stripes on the light screen. The display uses the form of water waves to show the concepts of interference and diffraction.
Export-Ready Features
- Durable, robust construction for high-traffic gallery environments
- Low-maintenance electromechanical design with reliable, safe components
- Custom sizing, theming & multilingual labeling available
- OEM & turnkey exhibit solutions with full project management
- Overseas shipping, export documentation & on-site installation supported
- Shipped to science centers and museums in 50+ countries