(under subclass 52) Subject matter which includes a photosensitive detector to receive the light transmitted through the egg, and which may include an optical filter in the visual range to restrict the characteristic of the light transmitted through the egg.
SEE OR SEARCH THIS CLASS, SUBCLASS:
36, for sample preparation of the tested egg in addition to the candling step.
51, for infrared, ultraviolet and visible light transmission through the egg.
407, for color tests responsive to plural colors
simultaneously.
418, for color tests including rotating filters. 419, for color tests including multicolored filters.
SEE OR SEARCH CLASS
209, Classifying, Separating, and Assorting Solids,
510+, for automatic egg candlers and sorters.
250, Radiant Energy,
336.1+, for egg candlers utilizing an infrared or ultraviolet responsive electric signalling device.
359, Optics: Systems (Including Communication) and Elements,
350+, for optical elements used in the infrared or ultraviolet portion of the electromagnetic spectrum, and subclasses 885+ for optical filters.
