1. How VCM Works？
VCM Full Name: Voice Coil Montor working principle is that in a permanent magnetic field, the stretching position of the spring is controlled by changing the DC current of the coil in the motor, thereby driving the lens up and down movement.
2. Advantages Of VCM
It has the advantages of small size, high precision, good integration, high reliability, and can support high power, which significantly reduces the size and volume of the finished product and reduces the cost of the whole machine.
Mobile phone cameras widely use VCM to achieve auto-focus function. Through VCM, the position of the lens can be adjusted to present a clear image.
3. VCM Classification
VCM can be roughly divided into three categories from the structure:
Shrapnel structure
Ball structure
Friction structure
VCM can be roughly divided into five categories in terms of functions:
1.Open loop to open the motor
2.Close loop closed-loop motor
3.Alternate mid motor
4. OIS optical anti-shake motor (sub-translation type, axis-shift type, memory metal type, etc.)
5. OIS+Close loop six-axis motor
Ronghua, is a manufacturer specializing in the R&D, customization, production, sales and service of camera modules, USB camera modules, lenses and other products.If are interested in contact us , please :
+86 135 9020 6596
+86 755 2381 6381
mia@ronghuayxf.com
www.ronghuayxf.com
Post time: Dec-05-2022
