Patent ID: 6392746
Filing Date: 2002-05-21
Classification: G01J

Abstract:
An electronic fiberoptic power and wavelength measuring instrument comprising:a housing having an exterior surface which encloses an internal chamber; electronic circuitry mounted within said internal chamber; an optical port for receiving a light beam, said optical port being mounted on said exterior surface of said housing; a primary detector mounted within said internal chamber, said primary detector for directly receiving light from said optical port; a secondary detector mounted within said internal chamber and spaced from said primary detector, said secondary detector for receiving reflected light from said optical port; a wheel mounted within said internal chamber, said wheel surrounding said primary detector, said wheel including a driven gear, said driven gear connecting with the drive gear, said drive gear connecting with the motor shaft, said wheel being pivotable between different positions and fixable in each position of said different positions; and a light filter mounted on said wheel, said light filter to intersect the light beam with said wheel located in a said position, said light filter to transmit a portion of the light beam to said primary detector and reflect the remaining portion of the light to said secondary detector, whereby the wavelength of light can be determined by comparing the amount of reflected light versus the amount of transmitted light and the power of the light can be calculated by determining the power of the reflected light and the transmitted light and adding such together.