What are the functions of the light source of AOI automatic optical detector?
Author:Lai Rongxin Time:2021-06-08 12:29 Browse(938)
What are the functions of the light source of AOI automatic optical detector, Touch screen and OLED Forum
The light source of AOI detection equipment is a very important part. Usually, people focus on the camera and software. If the color difference of the light source is very large, it will cause a lot of misjudgment and missing detection. The camera of AOI automatic optical detector captures the image of PCB components and processes the image captured by the camera, The software includes a lot of algorithms to process.

What are the functions of the light source of AOI automatic optical detector?

computer and display, making program and displaying inspection results.
the software includes a lot of algorithms to process; q' W- v( @.
}) k5 ^7 n3 _+ g4 S# g. B   | 8 i   {   K# xGenerally, there are three kinds of lighting sources:4 @3 w" ?' Z6 m halogen light source;% X- q, e+ m' A    M    F fluorescent light source and LED light source;: l& a* ?$ ^, B8 C + B $@ high quality and high brightness LED light source.
$]; s* p: E- {# s5 ^. W5 C- ? 1 _$ E0 n    G& Z9 b       The lighting unit of AOI automatic optical detector: LED color light source.
provides light source for the system.
it can decompose white light into color light or gray-scale light with obvious light and shade pairs.
so that the system can distinguish different components and different parts of component solder.
the system can distinguish different components from gray-scale light1 U; m7 K! E- z+ B(J $\ / O6 n) H.
B5 I6 [there are three lighting methods:* s" ~# s! e) z4 i' W; l: H5 ~ 7g front lighting;& _ 3 Z / C6 y * a $W back polished^ 5 r9 C. c9 YSide lighting1 a/ p2 R* h# S8 b' U' g* A$ V1 c$ n0 `! |$ O+ P       Generally speaking,
the combination of front and side lighting will make the image taken by the camera look clearer.
in this way, the camera can make the image more clear    P( j; O) w   ^.
n: W8 g$ n3 `0 t# o, R+ i: m; m: OMechanism control: control the movement and state of each mechanism component5 {* ]3 p+ |. Z    h* @    z. W5k & T1 d $axy stage: transfer and load PCB.
in addition, because most of the cameras of AOI are fixed.
so XY stage is also responsible for the X and Y direction movement of PCB.
in this paper, the design of the system is introduced9 _' l3 b4 W7 y6 D.
W- J3 {, l    a/ X4 G: k# ?   } 9 kInterface: responsible for communication with computers and transmission institutions outside AOI system.
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