Yellow filters that cut off as much as possible of the wavelength light shorter than a specific wavelength, while transmitting as much of longer wavelength light as possible at 400nm~510nm range. Used for beauty, Laser protective windows, Optical instruments of surveying and mapping, Machine vision devices, Optical detection instruments. The popular science optical, A digital optical, Optical test instruments, Fiber optic instruments, Electro-optic displays, Medical optical, Infrared thermography, and so on.
