The main function of an anti reflective film is to reduce all unnecessary light reflections, allowing the most light to pass through the discountglasses lens and reach the human eye. Anti reflection film uses the principle of interference to cancel out the light passing through the film layer to achieve the purpose of anti reflection.

Anti reflective film can reduce the reflection loss of light energy on the surface of the discount eyeglasses online lens, thereby improving imaging intensity and resolution. In order to meet the requirement of low reflection over a wide spectral range, it is necessary to use multi-layer anti reflection films.

High purity metal oxide materials such as titanium oxide and zirconium oxide are often used to coat the surface of resin lenses through evaporation processes, achieving good anti reflection effects.

After cheapest eyeglasses online coating with anti reflective film, there will be residual colors, mainly green. For lenses that require hardening, hardening treatment should be carried out first before coating with anti reflective film.

The higher the transmittance of the lens, the brighter the lens. Nowadays, the transmittance of the lens is very high. Everyone should pay special attention to some functional film lenses now.

The anti oil coating directly determines whether the lens is easily dirty, which has a significant impact on the optical performance of the lens. Poor lenses are very easy to get dirty, and they are not easy to remove when wiped with a lens cloth. Good lenses are not easy to get dirty, even if there is oil stains, they can be easily wiped off with a lens cloth.

Lenses coated with anti reflective film on the surface are particularly prone to stains, which can damage the effectiveness of the anti reflective film and reduce the transmission of light. Under a microscope, the anti reflection film layer appears as a porous structure, and oil stains are prone to infiltrate the anti reflection film layer.