The CR39 Polaroid lens is an organic material with a high molecular chain structure and a three-dimensional network structure. The structure between the molecules is relatively relaxed and there is room for relative displacement between the molecular chains....
Because of the gap between the molecular chains, so the number of molecules per unit volume is small, determines the advantages of resin lenses: low specific gravity, light texture, is a glass lens 1/3-1/2....
Good transmittance: in the visible region, the resin lens transmittance is close to glass; in the infrared region, slightly higher than glass; in the ultraviolet region, the transmittance decreases with the decrease of wavelength at 0.4um, and almost all the light with wavelength less than 0.3um is absorbed, so the transmittance is poor....
Resin polarizing lens is an organic material. It is a kind of polymer chain structure, which is connected with a three-dimensional network structure. The structure between molecules is relatively relaxed, and there is space for relative displacement between the molecular chains....
TAC sunglasses are widely used in China, so what is TAC? The TAC lens is made of three cellulose acetate. TAC (three cellulose acetate film) is an optical thin film used to manufacture polarizer. ...
TAC polarized lens advantages: effectively reduce the strong light, eliminate the dazzling reflection and scattered light, so that the disordered light into parallel light, so that the object more clear, soft and clear. Polarizing lens angle and radian through professional design and processing, so that the wearer will not have the feeling of distortion and dizziness....
Polarizing lenses are lenses that only allow the light of a particular polarization direction to pass through natural light. Because of its filter action, it will darken if you wear it. Polarizing lenses are made by adding a special vertical coating to the lenses in order to filter out the sharp rays of the sun in the equal direction of the water, land or snow. Most suitable for outdoor sports (such as sea activities, skiing or fishing)....
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