Recent content by OpticsLover

See slides 9-2 and 9-3 of attached. The source is coming from University of Arizona (UofA) (the college of optical sciences of UofA is a prestigious and leading optics institutes in the world)

No, if we accept the definition of the STOP in Optics books, the STOP is at the mirror, thats it (i.e. if we move the STOP somewhere else, the system is not only one mirror/lens anymore). The only explanation to have a different STOP would be the definition of STOP in Zemax is different from...

Yeah, thats exactly the problem. Why Zemax (such a powerful software) cannot find the STOP? Finding STOP should NOT be difficult: the STOP is the element that its entrance pupil makes the smallest on-axis cone angle. In the case of one element (e.g. one lens in your example), the STOP is that...

Thank you for the reply. I still dont get it though! You say "it is advantageous if the designer can set the stop position manually". It is like to say "it is advantage to use the Newton's law as F=mv instead of F=ma because in this case we deal with a first order differential equation which is...

We know that in a lens system, the STOP is defined as the element that its entrance pupil makes the smallest cone angle from an on-axis object. This means that the STOP is defined by the system and how the lenses, mirrors, and apertures have been arranged and NOT by the user/designer (i.e the...