Is the principle of Apple 13 lens superimposed?

IPhone 13 has two rear cameras, a normal lens and a wide-angle lens.

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Dual-camera mobile phone refers to a smart phone with two cameras placed side by side (horizontally or vertically), which can simulate the binocular vision principle of human eyes and obtain three-dimensional information through stereo photography algorithm. The main purpose of the mobile phone equipped with two cameras is to improve the photo effect. Mobile phone dual camera combination includes color camera+color camera, color camera+black and white camera, wide-angle camera+telephoto camera, color camera+depth camera.

The advantages of dual cameras are that they can overcome the shortcomings of single camera, greatly improve the focusing speed when shooting, easily realize optical zoom and night shooting noise reduction, improve the image quality and dynamic range when shooting, and even use dual cameras to achieve stereoscopic effect in conjunction with related algorithms. And these are difficult for a single camera to fully realize. Dual cameras are now the mainstream mobile phone camera configuration.