ue per foratiiinis cfetremitatem D ad luminofum cotpus fecla ducatur JVt L, eric namque LMex-tremus radius eorum omnium, qui a porcione luminofi corporis B L ad fi-gnum M percinenc: quarc nullus a porrione L A ad fignurn M radius lumino-fus afftilgec- quo circa nonasque lumcn parcicipat M acque G… … PROPOSITIO V. Radii qui ab extremitatibus corporis luminofi per eppofitasforamims extremit^its procidunt9 tnter foramen ejr corpus luminofumfe mutub fecant. Sit luminofum A B expoficum foramini C D per cujus oppofitas ex-tremitates C & D ab extremkatibus luminofi A & B decuflaci procidunc…
Optics, Geometrical · Optical instruments
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