Pelham Eye Care

2617 Hwy 31 South

Pelham, AL 35124 US

205-664-1575

205-664-1578

Calera Family Eye Care

195 Highway 304

Calera, AL 35040 US

205-668-7920

Filters

colorful lens filters

Optical filters carefully transfer light in a specific range of wavelengths or colors while obstructing what remains. These dyed plastic or glass devices are placed in the optical path. They are described by their frequency response, and this identifies how the scale and stage of each frequency component of an incoming signal is altered by the filter.