CAMERA APPARATUS AND WINDER SYSTEM

Embodiments of the present disclosure provide a winder system that includes a battery winder and a camera apparatus. The battery winder is configured to wind a positive electrode plate and a negative electrode plate of a battery. The camera apparatus includes: a camera and a lens, where an angle between a sensor target plane of the camera and a lens plane of the lens is a predetermined angle, and the predetermined angle is greater than 0 degree and less than or equal to 20 degrees. The camera apparatus is configured to obtain images of the positive electrode plate and images of the negative electrode plate concurrently. The camera apparatus according to the present disclosure can implement focusing of images on different working planes, thereby obtaining clear images of both positive electrode features and negative electrode features concurrently with a single camera.