ETAFILM Technology Inc

A dichroic color filter or thin-film filter is a very accurae color filter used to selectively pass light of a small range of colors while reflection

Optical low pass filter (OLPF) is used in high end (high resolution) digital camera sensor to eliminate interference influence (Moire pattern) by crys

1. The IR cut filter often employed to protect optical systems by reflection heat back into the light source. 2. The IR cut filter are crucial to CCD

Laser Line filter catalogue is classified specific on Laser usage. It wavelength is form 200nm to 1550nm, We select most popular and useful wavelength