Glass that changes the direction of light propagation and changes the relative spectral distribution of ultraviolet, visible, or infrared light. Optical glass in the narrow sense refers to colorless optical glass; optical glass in the broad sense also includes colored optical glass, laser glass, quartz optical glass, radiation-resistant glass, ultraviolet and infrared optical glass, fiber optical glass, acousto-optic glass, magneto-optic glass and photochromic glass. Optical glass can be used to manufacture lenses, prisms, mirrors and windows in optical instruments. Components made of optical glass are the key components in optical instruments.
Crystal cup, usually refers to the lead-free crystal glass processing for drinking cup or glass, with the popularization of technology and technology, crystal glass has been used as a cup, become a new era of fashion people's favorite; another is the common crystal glass. Lead-free crystal is very popular with consumers and processing manufacturers because of its transparency and brightness.
Rhinestone (crystal,rhinestone) also known as crystal diamond, rhinestone. The main ingredient is crystal glass, which is a kind of jewelry accessory obtained by cutting artificial crystal glass into diamond facets. This material is more economical and has a diamond-like dazzling visual effect. Therefore, it is very popular, rhinestones are generally used in mid-range jewelry design. Classification of rhinestones: according to color points can be divided into: white diamond, color diamond (such as pink, red, blue, etc.), color diamond (also called AB diamond), color AB diamond (such as red AB, blue AB, etc.).