SWIR lenses are also known as near infrared lenses or short wave near infrared lenses, is the working wavelength mainly in the near infrared fixed-focus lens, SWIR full name Short Wave infrared Radition - short wave infrared, the general wavelength range in 800-2500nm, so SWIR lenses can also be understood as lenses that work at wavelengths of 800-2500nm. As the wavelength range of near infrared cameras is generally 900-1700nm, some manufacturers define SWIR lenses as lenses that work in the 900-1700nm wavelength range. GAOPTICS' SWIR lens range has been optimised for the NIR band with excellent resolution performance, high transmission rates and a compact, user-friendly form factor. The GA 25.6mm SWIR shortwave NIR lenses are available in sizes up to 25.6mm and operate at wavelengths of 800-1800nm, and the GA 1" SWIR shortwave NIR lenses are available in sizes up to 16.4mm and operate at wavelengths of 700-1700nm.