Fundamentals of geometrical optics
Thin lenses
A lens is considered thin if e is small in comparison to R1 and R2. The term
is négligeable and the focal distance f ' is such that :
Specific caracteristics of thin lenses :
Tableau1 : Construction of the Images
[zoom...]
![[zoom...]](javascript:window.open(%22../res/tab_cours_04_1.png%22,%22_blank%22,%22width=%22+Math.min(800,screen.availWidth)+%22,height=%22+Math.min(600,screen.availWidth)+%22,left=%22+(screen.availWidth-800)/2+%22,top=%22+(screen.availHeight-600)/2+%22,scrollbars=yes,resizable=yes%22)?void(0):void(0)){kind=link}
Figure 43 : Convergent Lenses
[zoom...]
![[zoom...]](javascript:window.open(%22../res/fig40_1.jpg%22,%22_blank%22,%22width=%22+Math.min(800,screen.availWidth)+%22,height=%22+Math.min(600,screen.availWidth)+%22,left=%22+(screen.availWidth-800)/2+%22,top=%22+(screen.availHeight-600)/2+%22,scrollbars=yes,resizable=yes%22)?void(0):void(0)){kind=link}
Figure 44 : Divergent Lenses
[zoom...]
![[zoom...]](javascript:window.open(%22../res/fig41_1.jpg%22,%22_blank%22,%22width=%22+Math.min(800,screen.availWidth)+%22,height=%22+Math.min(600,screen.availWidth)+%22,left=%22+(screen.availWidth-800)/2+%22,top=%22+(screen.availHeight-600)/2+%22,scrollbars=yes,resizable=yes%22)?void(0):void(0)){kind=link}