Views: 100 Author: Site Editor Publish Time: 2023-01-14 Origin: Site
The double sided magnifying mirror has a different scale of the magnifying surface. This makes it easier for the make-up artist to see the subtleties of the part being illuminated. A mirror is an object with a smooth surface and the ability to reflect light.
In a double sided magnifying mirror, the light rays are reflected by the mirror in accordance with the laws of reflection, and the reflected rays enter the eye to form a vision in the retina. In a plane mirror, when a parallel beam of light hits the mirror, the whole will change direction in a parallel pattern and the image will be the same as the one seen by the eye.
A double sided magnifying mirror obeys the law of reflection with regard to the reflection of light. Its reflectivity depends on the angle of the incident ray, the smoothness of the mirror surface, and the nature of the metal coating. An imaginary line perpendicular to the mirror is called the normal, and the angle between the incident ray and the normal and the angle between the reflected ray and the normal are equal. The object in front of a plane mirror becomes an orthogonal imaginary image behind the mirror, and the distance between the image and the mirror is equal to the distance between the object and the mirror. If you want to see your entire body length in the mirror, the mirror must be at least half your body length because the angle of incidence is equal to the angle of reflection
The surface processing of the glass forming the reflective imaging surface has two methods: chemical silver plating and vacuum vapor plating. This method is to dissolve silver nitrate in water, add ammonia and sodium hydroxide solution and dilute it into silver hydroxide ammonia compound salt, made of silver plating solution. To convert sugar or formaldehyde, potassium sodium tart-rate solution as a reducing solution. Glass by cutting, grinding edge (if necessary, but also by grinding and polishing), the surface is washed, sensitized with a dilute solution of tin chloride, and then washed, and then mixed with silver plating solution and reducing solution immediately dip the surface, the mirror surface formed after washing, followed by copper plating and coating protective paint. The vacuum vapor plating method is to wash the glass, and placed it in 0.1 ~ 10-4Pa vacuum vapor plating device, the spiral tungsten wire will be electrified, the resulting high temperature so that the spiral in the aluminum alloy sublimation into a gaseous state, deposited on the glass surface to form a mirror surface. An electronic gun can also be used instead of tungsten heating. Vacuum vapor deposition can also be used to create a mirror surface on smooth metal surfaces.
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