Patent ID: 6072573
Filing Date: 2000-06-06
Classification: G01J

Abstract:
A compact hand-held power meter, comprising:an elongated housing;a photon detector mounted within said housing;an aperture in said housing aligned with said photon detector;an attenuator slidably mounted within said housing and moveable between a first position and a second position such that when said attenuator is in said first position, said attenuator is aligned with said aperture and located over said photon detector and when in said second position, said attenuator is retracted away from said photon detector;circuitry mounted within the housing for monitoring the output of the photon detector to determine the level of light radiation reaching the photon detector wherein the determination is dependent upon the position of the attenuator; anda display mounted on said housing for providing a visual readout of the power determined by said circuitry.