JAI CV-L105 用户手册

A line scan camera works according to the same principle as a fax machine, also sometimes 
referred to as a “push broom” operation. 
It captures a single line at a time (horizontal), and requires either the object or the camera to 
be moving to create the vertical direction of the image. 
 

 
 

Area 

 
 
 
 
 
 

 
 
 
 
 
 

Fig. 8. The principle of line scan. 

 

 
A 3CCD line scan camera follows the exact same principle, with the added complexity of three 
CCD sensors mounted on a dichroic prism. The three CCD sensors are aligned on the prism in 
such as way, that they all view the same part of the object. This is referred to as co-site 
sampling. Figure 4 shows the construction of the prism, and how the CCDs are aligned. 
 

 

IR-cut 

Green 

pixel n of 

Red 

pixel 

Blue 

pixel 

 
 

 

 
 
 

 
 
 
 
 
 

Fig. 9. 3 CCD prism construction. 

 

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