Abstract: A novelty item in the form of a rod suffused with a fluorescent substance. The substance fluoresces in response to ambient light and the flouresced light is subject to internal reflection within the rob, with the flouresced light being substantial emitted at one or both ends of the rod. The concentration of the light enables a variety of uses, such as a broad range self-illuminating toy wands as a luminescent professional, presentation pointer.

Abstract: An improved method for measuring residual stress in a material comprising the steps of applying a spot of temperature indicating coating to the surface to be studied, establishing a speckle pattern surrounds the spot of coating with a first laser then heating the spot of coating with a far infrared laser until the surface plastically deforms. Comparing the speckle patterns before and after deformation by subtracting one pattern from the other will produce a fringe pattern that serves as a visual and quantitative indication of the degree to which the plasticized surface responded to the stress during heating and enables calculation of the stress.

Abstract: A method for measuring residual stress in a material comprising the steps of establishing a speckle pattern on the surface with a first laser then heating a portion of that pattern with an infrared laser until the surface plastically deforms. Comparing the speckle patterns before and after deformation by subtracting one pattern from the other will produce a fringe pattern that serves as a visual and quantitative indication of the degree to which the plasticized surface responded to the stress dung heating and enables calculation of the stress.