Digital Tunable Filter

The digital tunable filter is a hand held unit with a keypad, display, and computer interface. The device works on the principle that by adjusting the angle of incidence between the filter and the incident beam one controls the wavelength at which the filter transmits. The digital version is calibrated such that the user directly enters the wavelength to transmit via the keypad or remotely, through the computer interface. A USB interface with cable is standard.

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