Kids Toys Science Toys Glowing Light Beam

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Fiber Light CoursewareLight emitting diodes are simply referred to as LEDs. It is made of compounds containing Ga, As, P, N, etc.When electrons and holes recombine, they emit visible light and can be used to make light emitting diodes. In the circuit and instrument as a light, or composition of text or digital display. The gallium arsenide diode emits red light, the gallium phosphide diode emits green light, the silicon carbide diode emits yellow light, and the gallium nitride diode emits blue light. Due to chemical properties, organic light emitting diodes (OLEDs) and inorganic light emitting diodes (LEDs) are also divided.The main components of the fiber-optic lamp are light-emitting diodes. The size of the control current causes the diode to change the three primary colors and emit light of various colors.Experimental cognition:Battery box: As the name suggests, a box for fixing a battery is a battery power output deviceLED light: LED (Light Emitting Diode), light-emitting diode, which is a solid-state semiconductor device that can directly convert electricity into light. The heart of the LED is a semiconductor wafer. One end of the wafer is attached to a support, one end is negative, and the other end is connected to the positive electrode of the power supply, so that the entire wafer is encapsulated with epoxy resin. The semiconductor wafer consists of three parts, one part is a P-type semiconductor, in which holes are dominant, and the other end is an N-type semiconductor, which is mainly electrons on this side, and usually has 1 to 5 cycles of quantum wells in the middle. When current is applied to the wafer through the wire, electrons and holes are pushed into the vector well. In the quantum well, electrons recombine with holes, and then they emit energy in the form of photons. This is the principle of LED light emission. The wavelength of light, which is the color of light, is determined by the material that forms the P-N junction.Switch: device for turning on and off the powerBeam: the device that guides the display of the light source pathWire: Charge CarrierExperimental steps:1. Experiment preparations to know experimental equipment: screw plate, switch, light beam, wire, LED lamp, battery box, screwdriver, oblique pliers.experimental report:Understand the working principle of the fiber optic lamp, test the fiber lamp to complete the colorful light source and understand the three primary colors.
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Product Packaging: OPP
Quantity: 480PCS
Box: 37*37*60
Weight: 26KG
Gross weight: 28KG