समाक्षीय लेन्स निकाय तथा इसके प्रधान बिन्दु माना f1 तथा f2 फोकस दूरियों वाले दो लेन्स एक...
nodal points of a lens system
Coaxial lens system and its cardinal points Let two lenses of focal lengths f1 and f2 are...
Cardinal points of an optical system There are total six cardinal points of a lens system, which...
