Is light perception exposure?

Light perception means that in front of your eyes 1m, you can only perceive light but can't recognize the shaking of your fingers. Exposure refers to the process that the light emitted or reflected by the photographed object is projected onto the photosensitive film through the camera lens, causing chemical or physical changes and development.

The function of light-sensitive skin rejuvenation is to stimulate the regeneration of cell tissue in the skin, achieve the effect of freckle removal and whitening in the process of avoiding skin damage, and also significantly increase the firmness of the skin. Generally, the damage to the body after photon rejuvenation is relatively low, because the beam irradiated by laser will not cause the symptoms of skin damage.