 If we now prolong R and R in their first direction, they will meet at a point P, the one nodal point, or the centre of admission, and if the emerging rays are also prolonged, they will converge to a point P', the other nodal point, or the centre of emission....  A Lecture on Lenses - Page 7by Joseph Zentmayer - 1876 - 23 pagesFull view - About this book
 | Edward Livingston Wilson - 1894 - 538 pages
...centre, as RR, emerges on the other side parallel to its first direction, R' R', as explained elsewhere. If we now prolong R and R in their first direction,...point, or the centre of emission. We recollect that Flo. 142. in the pin-hole camera the size of the image compared with that of the object is exactly... | |
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