Scaling Device for Photographic Images (KSC-12201)

Abstract:
When a photograph is taken, the image of this pattern appears along with the image of the object under investigation, allowing the viewer to quantify the size of the object. NASA's need for this development was inspired by hailstorm damage to the Space Shuttle's External Tank. Telephoto lenses are used to zoom in and see the damage clearly, yet the end viewer cannot determine the scale of the damage because there is no reference object in the image. In many photographic situations an object, such as a ruler, is placed within the field of view so that when the photo is seen, the viewer will have a visual indication of the scale of the other objects in it. For situations where this procedure is not possible, this innovation supplies a solution. In its present state, the scaling tool is a stand-alone device with no image processing software. It consists of four lasers (only two are needed for scaling, the other two are NASA-required backup) that are aligned in a row at a precise and known distance. When the lasers project onto the image at this spacing, they provide a scalable series of spaced reference points in the image. The packaging contains thermally stable mounting pots for the lasers with alignment adjustment screws. Class 3 lasers are used in the preferred design: however, cheaper and less powerful lasers can be used.

Type of Offer: Licensing



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