3D-AOI light source

By designing multi-level LED light groups and specific illumination angles in 3D-AOI light sources, the problem that the structure adjustment of 3D-AOI light sources affects the detection effect is solved, efficient detection of solder is achieved, and the detection accuracy and yield of PCB are improved.

CN222669696UActive Publication Date: 2025-03-25CSIC PRIDE (NANJING) INTELLIGENT EQUIP SYST CO LTD
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Patent Information

Application Number
CN202323540239.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2023-12-25
Publication Date
2025-03-25
Estimated Expiration
2033-12-25

AI Technical Summary

Technical Problem

When the structure is adjusted, the 3D-AOI light source is easily affected by the brightness and lighting effect of the light source, and thus affects the detection and judgment, especially in 3D detection, it is difficult to effectively detect defects.

Method used

A 3D-AOI light source including a multi-stage LED lamp group is designed. By setting cross-type through holes and multiple lamp groups on the light source frame, the detection characteristics of the PCB are enhanced by using different colors of LED lamps and different illumination angles.

Benefits of technology

By enhancing the solder detection capability in flat areas and high angle areas, the detection accuracy of solder is improved, making the detection effect more outstanding, and the factory yield of the PCB is improved.

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Abstract

The 3D-AOI light source comprises a light source frame; the first-stage lamp group comprises at least one circle of first white LED lamps and first red LED lamps which are distributed along the transverse circle of the light source frame at intervals; the secondary lamp group comprises a second white LED lamp and a second red LED lamp; the third-stage lamp group comprises green LED lamps which are distributed in at least one circle along the transverse circle of the light source frame; the fourth-stage lamp group comprises first blue LED lamps which are distributed in at least one circle along the transverse circle of the light source frame; the fifth-level lamp set comprises second blue LED lamps and third white LED lamps, and the second blue LED lamps and the third white LED lamps are distributed along the transverse circle of the light source frame at intervals and distributed in at least one circle. According to the invention, the PCB detection characteristics can be enhanced, and the 3D detection requirement is met.
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