The difference between polarizer, polarizer and UV lens_Sunglasses knowledge_

Polarizers and UV mirrors are widely used in the photography industry, and the glasses industry is also used, but relatively few compared to the photography industry. Taking the photography industry as an example, the main function of the polarizer is to allow the vibrating light in a certain direction to pass through the lens; while the UV mirror mainly plays the role of protecting the lens. Let's take a closer look at the differences between polarizers, polarizers and UV mirrors. What is a polarizer? A polarizer, also known as a polarizer, is a color filter, referred to as 'PL mirrorIts excellent function can choose to let the vibrating light in a certain direction pass through, especially in color and black and white photography, it can eliminate or weaken the reflected light of non-metallic surfaces, thereby eliminating and reducing flare. The difference between polarizer and UV mirror <1>. The polarizer can adjust the tone more suitable and appropriate without affecting the original tone, and can also reduce the contrast between the sky and the ground. It can also simulate the effect of night scenes, and improve the clarity, texture and color saturation of the influence of flare parts on the surface of non-metallic objects. In an emergency, it can be used as a substitute for ND5 neutral density filter, and two pairs of polarizers can be combined together to adjust to a dimming filter. <2>. Compared with polarizers, UV mirrors are mainly used to protect the lens and filter light; in the photography industry, after installing UV mirrors, the erosion of dust can be avoided, even if it is dirty and wiped. It will scratch the lens, which is very convenient. Many sunglasses are made of the characteristics of UV mirrors, which can effectively block ultraviolet rays and avoid strong ultraviolet rays that cause eye fatigue. All in all, compared with polarizers, the biggest role of UV lenses is to prevent the intrusion of strong ultraviolet rays from affecting the clarity of imaging, and to prevent some toxic gases in the air from corroding the lens. The difference between polarizer, polarizer and UV mirror? Polarizer can eliminate part of the reflected light, improve the clarity and expressiveness of the captured image, and then increase the saturation of the color, making the blue sky, green leaves, buildings and other colors more vivid. The UV mirror is anti-ultraviolet and is widely used in the production of sunglasses in the glasses industry; but in the photography industry, it mainly protects the lens.