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AC lens
Jul 16, 2018

AC is an abbreviation for Acrylate Acrylate, and the AC resin used for the lens herein refers to polymethyl methacrylate.

Polymethyl methacrylate is abbreviated as PMMA, commonly known as plexiglass. It is the most excellent synthetic material and the price is suitable. PMMA resin is not easy to produce sharp fragments when broken, and its optical performance advantages:

1. Visible light: high visible light transmittance: PMMA is currently the most excellent polymer transparent material, and its visible light transmittance is 92%, which is higher than that of glass.

Ultraviolet light: Quartz can completely pass ultraviolet light, but the price is high. Ordinary glass can only pass 0.6% of ultraviolet light, but PMMA can pass 73%. PMMA does not filter out ultraviolet light (UV). Ultraviolet light penetrates PMMA, and some manufacturers coat the PMMA surface to increase the effect and properties of UV light. On the other hand, PMMA has better stability than polycarbonate in the case of ultraviolet light.

Infrared: PMMA allows infrared light with a wavelength of less than 2800 nm to pass. Longer wavelength IR, when less than 25,000 nm, can be substantially blocked. There is a special colored PMMA that allows specific wavelengths of IR to pass through while blocking visible light (for remote control or thermal sensing, etc.).

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