초록 ▼

An optical sensor apparatus having one or more optical fibers with a numerical aperture of 0.870 or less to receive and conduct light signals. A light detecting unit receiving the light signals from said optical fibers and providing an electrical output signal in response thereto. A signal processin

An optical sensor apparatus having one or more optical fibers with a numerical aperture of 0.870 or less to receive and conduct light signals. A light detecting unit receiving the light signals from said optical fibers and providing an electrical output signal in response thereto. A signal processing unit receiving the electrical output signal and determining the signal distribution thereof.

대표청구항 ▼

An optical sensor apparatus comprising in combination: an optical fiber having a front surface and a back surface, said optical fiber having a predetermined length and a core diameter, said front and back surfaces being cleaved and polished, said optical fiber receiving light signal at said front su

An optical sensor apparatus comprising in combination: an optical fiber having a front surface and a back surface, said optical fiber having a predetermined length and a core diameter, said front and back surfaces being cleaved and polished, said optical fiber receiving light signal at said front surface, said optical fiber conducting said light signal to said back surface, means for detecting light signals, said detecting means operatively aligned with said back surface of said optical fiber to directly receive said light signal therefrom, said detecting means having a center point and a larger diameter than said optical fiber, said optical fiber being aligned with the center point of said detecting means, said detecting means detecting said light signal and providing an output signal having a signal distribution in response thereto, and means for signal processing, said signal processing means operatively connected to said detecting means to receive said output signal from said detecting means, said signal processing means processing said output signal to determine the signal distribution of said output signal.