Auto-Optical Centering Device for Photometers.
DEPARTMENT OF THE ARMY WASHINGTON DC
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The patent concerns an automatic centering device for photometers which facilitates the automatic centering of each microtiter well is accomplished simply by moving the microtiter plate so that the stainless steel lamp housing tip is in proximity of the well. There is sufficient tension in the lamp support arm to automatically nest, i.e. snugly fit the lamp source on the perimeter of the well being read and thus optically centering the light beam with the photodetector.