Line scan lens calculation formula--telecentric lens

-Telecentric lens


With the improvement of automation equipment performance and detection speed, higher speed and high precision lens cameras are required.


Line scan CCD lenses are for a big trend.


How to choose the proper line scan lens?


The formula is as follows:


Calculate the resolution: divide the width by the minimum detection accuracy to get the pixels needed for each line


Selected camera: The actual width is divided by the number of pixels.


Speed of motion per second divided by accuracy




Select camera based on the above values


Lens: sensor length (pixel width × number of pixels) ×? Object distance? / Width


For example, the width is 1600mm, the accuracy is 1mm, and the moving speed is 22000mm / s


Camera: 1600/1 = 1600 pixels


2000 pixels minimum, 2k camera selected


1600/2048 = 0.8 actual accuracy


22000mm / 0.8mm = 27.5KHz


Should choose camera as 2048 pixels? 28kHz camera


--Telecentric lens


          远心镜头

Prev:2015-2020ChinaMachineVisionInd...
Next:DehongTechnologyEnterpriseLogo...

分享到