Left and right outside car rearview camera because the exposure is very easy to air in the oil stains, wipe with tissue paper in general, always could not make it, an encounter rain, or blurred.
Toothpaste is a good mirror cleaner, dip toothbrush with toothpaste out from the center outward way to mirror brush uniform circular motion, then rinse with water. In addition to its cleaning effect of toothpaste, the also very fine abrasive, can be left and right rearview mirror on the grease, stubborn dirt cleaned. Even in the face rain, water droplets will form a ball and fast rule, will not stick in the mirror as a hinder driving safety.

Horizon
Backup camera monitor have a horizon problem, which is reflected in that mirror the scope of what can be. View of the three elements of the industry say. ① the driver away from the eyes and mirrors; ② size mirrors; ③ mirror radius of curvature. Between the three elements of a certain relationship, depending on the distance and when later the same size, the smaller radius of curvature mirror, mirror to reflect the greater field of vision. But things have dual nature, though the smaller radius of curvature mirror the larger field of view, but at the same mirror to reflect the greater the deformation of objects, and the real distance farther, often resulting in the driver’s illusion. Therefore, there is a mirror of curvature radius of the limits, provided the industry standard rearview mirror of curvature radius of R1200, inside rearview mirror radius of curvature is infinite (plane mirror). As the industry provides: Car rear-view mirror be installed outside the vehicle shall not exceed 250 mm while the outer, so the original car with the rear-view mirror would be blind. At the same time also has a reflective mirror indicators, while the industry provides aluminum mirror reflectance can not be less than 80%, chrome mirror reflectivity not less than 45%, blue mirror international requirements can not be less than 60% reflectivity. Since the higher reflectivity mirror reflects the image more clear, mirror reflectivity and the level of the inner membrane surface reflection. Are the domestic car rearview mirror reflective film for general use of silver and aluminum as the materials, but also some of the material with chromium.
At present foreign car mirrors, chrome mirror has replaced the silver mirror and aluminum mirror. Although the reflectivity of silver and aluminum is relatively clear, but in some occasions, the high reflectivity have side effects, such as driving at night the car headlights in the rear of irradiation, or during the day and down when the sun rises, after rear-view mirror reflection will produce blinding the driver a sense, affect driving safety. Although chrome mirror glaring problems to solve, but its low reflectivity, so little light in the night vision on the road will Shaoan, especially the posts on the dark windows on the Solar Films, will look more fuzzy . So the Germans invented the blue mirror, blue mirror is coated on the glass substrate precision titanium dioxide and silicon dioxide, through precise control of the instrument through multi-layer plating film thickness is made. Generally prone to higher wavelength of visible light glare, light blue lens reflex which produces interference into Blu-ray, Blu-ray is the most human eye can adapt to light, we now have blue mirror multi-application high-level car in Europe species as a rear view mirror vga.

Reference: http://electronics.putblog.com/

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