Stepper motors regulate the focus of the laser through precise control so that the laser can melt the fibre. As the ‘muscle’ of the fibre optic fusion splicer, the stepper motor plays a key role in the fibre optic fusion splicing process due to its high precision and reliability.
The focusing function of stepper motors can also be applied to telescopes. Today's newly developed electronic astronomical telescopes are more suitable for beginners and novice hobbyists than traditional professional telescopes because of their low entry threshold, low price, automatic focusing and a series of other features.
The stepper motor adjusts the focal length by adjusting the distance between the screen/light source inside the myopia treatment device to relieve eyestrain and treat myopia.
Stepper motors are also used in a large number of high-end cameras such as DSLRs. Not only will they be used for focusing functions, but also for functions such as aperture control.