Blog
02/08/2020
Optical lens is an indispensable component in the machine vision system. It directly affects the quality of the imaging. It affects the implementation and effect of […]
02/04/2020
In traffic management, artificial intelligence is mainly used for moving object detection and recognition. The commonly used application scenarios include the following four parts: 1、 Dynamic […]
01/05/2018
To focus on shorter distances, s-mount lenses have to be “unscrewed” . On first glance this seems to be very different from larger Lenses like C- […]
05/18/2017
We describe here the (yes, complicated) relationships between : Focal Length F-Number (=F#) Entry Pupil Exit Pupil Viewing Angle Chief Ray Angle Image Circle Object side […]
08/23/2016
Resolution What is it in general? Resolution describes in general the ability of a “system” to provide “details”. Systems can be anything, a thermometer , a […]
08/22/2016
Some centuries ago, people noticed with some surprise, that in a dark room sometimes an (upside down) image of the environment is projected across a small […]
10/01/2014
Per DefinitionDOF := Far Point – Near Point. The formulas for these are really complicated and contain several times the focal length. Surprisingly, despite the formulas […]