Throughout the ages, a great number of different materials have been used to create mirrors. Obsidian was used originally, with gold, silver, aluminium and bronze also being implemented at various times through history. At first, the stones were highly polished to create a reflective surface, but today the process is a bit more advanced and streamlined. First, a reflective coating – usually silver or aluminium – is applied to a sheet of glass, which has to be polished to the highest possible standard, since any blemishes can cause distortions in the mirror image. The remaining solution is then poured of and the glass is dried. The back of the mirror is covered with a protective substance to safeguard the coating. Depending on the type of mirror, they are created in different ways. Heavy- duty mirrors are created?with thicker layers of glass?in order to be sturdier, while in mass production, highly polished metal can be used. Some optical instruments use different coatings that better reflect certain types of light. For example, aluminium is better than silver at reflecting ultraviolet light.
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Mr. Sandip Choudhary
Throughout the ages, a great number of different materials have been used to create mirrors. Obsidian was used originally, with gold, silver, aluminium and bronze also being implemented at various times through history. At first, the stones were highly polished to create a reflective surface, but today the process is a bit more advanced and streamlined. First, a reflective coating – usually silver or aluminium – is applied to a sheet of glass, which has to be polished to the highest possible standard, since any blemishes can cause distortions in the mirror image. The remaining solution is then poured of and the glass is dried. The back of the mirror is covered with a protective substance to safeguard the coating. Depending on the type of mirror, they are created in different ways. Heavy- duty mirrors are created?with thicker layers of glass?in order to be sturdier, while in mass production, highly polished metal can be used. Some optical instruments use different coatings that better reflect certain types of light. For example, aluminium is better than silver at reflecting ultraviolet light.