What is the principle of camera flash?

Low-voltage direct current is converted into high-voltage (160V-300V) alternating current through transistor oscillation circuit, and then rectified into high-voltage direct current, which is stored in a capacitor, and this high voltage is applied to both ends of the flash tube;

Similarly, another high voltage (about 800V) is generated. When taking pictures, this high voltage (800V) is applied to the trigger end of the flash tube, so that the gas in the flash tube is broken down and conducted, and the electric energy in the capacitors at both ends (voltage 160V-300V) is discharged through the flash tube, so that the flash tube emits light.

The English scientific name of flashlight is flashlight. Flash is also one of the ways to enhance exposure, especially in dim places, which helps to make the scenery brighter.

The Chinese full name is "electronic flash", also known as high-speed flash. The electronic flash lamp stores high-voltage electricity through the capacitor, and the pulse triggers the flash tube to discharge, thus completing the instantaneous flash. The color temperature of the usual electronic flash is about 5500K, which is close to the color temperature in the sunlight during the day. Its luminescent property belongs to cold light type, which is suitable for shooting objects that are afraid of heat.

Flash: it can emit strong light in a short time and is a photographic accessory for photographic sensitivity. It is mostly used for instantaneous lighting in dark places, and it is also used for local lighting of the subject in bright places. Compact appearance, safe use, convenient carrying and stable performance.