Yutong Optical's vehicle-mounted lens patent adopts the optical structure of one glass lens and four aspherical plastic lenses, which reduces the processing cost and improves the performance of the lens. Phoenix lens should be a relatively high level of domestic lens at present, but due to technical limitations, the focusing performance of all Phoenix lenses is not very good, so Yutong lens is good.
In film and television, the lens has two fingers, one refers to the optical components used by film cameras and projectors to produce images, the other refers to the continuous picture taken from power on to power off, or the fragment between two editing points, also known as the lens.