Request InfoMeasuring Low Power, Energy, Divergent BeamsMKS Ophir, Light & MeasurementLOGAN, Utah, Aug. 19, 2009 – Ophir-Spiricon Inc. has announced the convection-cooled 3A-P-FS sensor that is designed to measure low-power and -energy light sources and divergent beams, such as LEDs and diode lasers. It features a wide 12-mm numerical aperture and a fused silica window in front of the detector. The window, only 7 mm from the sensor surface, keeps out air currents and long-wavelength background heat, allowing accurate measurement of low power. The sensor can measure divergent beams up to ± 40°. It measures very low power, pulsed or continuous-wave lasers in the 0.19 to 20 µm wavelength range. 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