Patent ID: 8519458

Claim:
A light-emitting element detection and classification device, comprising: a rotation unit for transporting a plurality of light-emitting elements, wherein the rotation unit includes at least one rotary turntable, a plurality of receiving portions formed on the rotary turntable, and a plurality of suction-exhaust dual-purpose openings respectively disposed in the receiving portions, each receiving portion selectively receives at least one of the light-emitting elements, and each light-emitting element is an LED package chip having a positive electrode pad and a negative electrode pad disposed on the bottom side thereof; a chip detection unit including at least one chip detection module adjacent to the rotation unit for detecting each light-emitting element; a chip classification unit including at least one chip classification module adjacent to the rotation unit for classifying the LED package chips that have been detected by the at least one chip detection module; and a polarity testing unit adjacent to the rotation unit, wherein the polarity testing unit includes at least two pad polarity testing pins disposed under the LED package chip for judging whether the positions of the positive electrode pad and the negative electrode pad are correct.