Patent ID: 7931201
Filing Date: 2011-04-26
Classification: G01N,G06K

Abstract:
1. A plate for supporting bar code scanning of test tubes disposed in a plurality of receptacles in the plate, comprising: a plurality of first-circle receptacles distributed along a circumference of the sample plate; and a plurality of clear slots for receiving a projected bar code scanning light, each clear slot corresponding with one of the first-circle receptacles, wherein an angle α is formed between a line connecting a center of each first-circle receptacle to a center of the sample plate and an axis of the corresponding clear slot, wherein the line does not intersect a wall of the corresponding clear slot to thereby guarantee that a bar code scanning light projected along the line is incident at the angle α on a barcode when a test tube having the bar code is located in the corresponding first-circle receptacle, and wherein the range of the angle α is 4°<α<8°.