Abstract: An optical storage device for storing data includes at least one optical waveguide for receiving an optical interrogation signal and providing a response to the optical interrogation signal and a plurality of optical elements arranged relative to the at least one optical waveguide. The plurality of optical elements are responsive to the optical interrogation signal provided through the at least one waveguide to return a prescribed data value through the at least one optical waveguide. The plurality of optical elements represent encoded data concerning a function of an optical sensor.

Abstract: An optical storage device for storing data includes at least one optical waveguide for receiving an optical interrogation signal and providing a response to the optical interrogation signal and a plurality of optical elements arranged relative to the at least one optical waveguide. The plurality of optical elements are responsive to the optical interrogation signal provided through the at least one waveguide to return a prescribed data value through the at least one optical waveguide. The plurality of optical elements represent encoded data concerning a function of an optical sensor.

Abstract: An all-ceramic rolling element ball bearing assembly utilizes the superior compressive strength and hardness of ceramic materials over bearing steels to provide a point contact load bearing interface between the bearing balls and races that has no relative motion in the ball/race contact zone. Without the frictional heating of a curved-line contact bearing design, the all-ceramic bearing does not require the use of a friction reducing lubricant.