| 摘要 |
<p>The present invention relates to a three-stage color selection system that selects, consecutively in three stages (three steps), leaf products having low weight and wide variation in size and color, such as green tea, red tea, chrysanthemum, and herbs, and thus can ensure high productivity and very efficient color selection, and yield leaf products of high quality (high grade) without damaging (spoiling) the leaf products. The present invention uses a single chip-type full color LED having three primary color LEDs of red, green, and blue combined into one to produce light at the color and brightness of the leaf products to be selected in order to more effectively (efficiently) screen for and remove colored products other than leaf products, for example, glass or synthetic resin, as well as leaves which are partially rotted or discolored.</p> |
