Patent ID: 10067400

Abstract:
A system includes an objective lens, a viewing device, a control circuit, a first filter assembly, a light amplification assembly, and a second filter assembly. The control circuit is configured to transmit control signals for controlling a wavelength range of light filtered by a filter assembly. The first filter assembly is optically coupled to the objective lens, and is configured to receive light via the objective lens and filter the light into a first filtered light of a first wavelength range based on a first control signal received from the control circuit. The light amplification assembly is optically coupled to the first filter assembly, and is configured to receive the first filtered light and amplify the first filtered light into amplified light. The second filter assembly is optically coupled to the light amplification assembly and to the viewing device, and is configured to receive the amplified light, filter the amplified light into second filtered light of a second wavelength range based on a second control signal received from the control circuit, the second wavelength range corresponding to the first wavelength range, and output the second filtered light to the viewing device.