Explanation:
1. If described by objective data, the definition of resolution power is as follows: the number of lines that can be distinguished per 1mm is in lp/mm, where the line pair refers to the black line in the white background.
2. The resolution of the camera is related to the resolution and pixel of the sensor on the one hand, and the quality of the mirror group on the other.
The lenses of the lens group are lenses that refract the light, while the light in the real environment is composed of different wavelengths of light. The refractive index of the lens to the light is related to the wavelength of the light. A Prism can separate the white light from the color this way.
3. Similarly, as the refractive index of the lens to the different wavelengths of light is different, it causes the object to image. The most intuitive expression is that it was originally a converging dot, but in the end the imaging turned into a dispersive round spot.
4. The larger the dispersed circular spot, the worse the natural analytical force; However, when the first lens of the lens group produces aberration, it can be corrected by the rear lens, of course, the more lenses behind the lens, the stronger the ability to correct, so the more analytical power of the lens in the lens group, the better. Now the mainstream flagship camera is using 6p lens group, that is, six plastic lenses.
5. The number of lenses in the lens group is only one aspect. The material of the lens is also very different to the correction ability of the difference, and the production technology of the lens also has a considerable impact on the analytical power.
Note:
The process of the final camera module, especially the current high pixel, requires a lot from the module manufacturers. If the lens and sensor IC can not guarantee complete parallelism, it would lead to regional blurring; if the focusing is not accurate, it would cause the overall analytical power is not ideal.