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The Making of a Photographic Objective

1916; Springer Nature; Volume: 82; Issue: 2128supp Linguagem: Inglês

10.1038/scientificamerican10141916-244supp

1946-7087

H. C. Lord,

Photography and Visual Culture

rIll' llHKiK of this eourse is "A SystPlll of AppliPll Optil'K," hy II: 1>(,lIniK 'raylor, the in\" �ntor of t lIP Cooke IPIlS.'l'his Kplcwlitl yolullle develops, from thp standpoint of g!'ometrie opties.acomplete lli';("USHioll of till' formatioll of an image by a eombillatioll of allY lIumher of 1(,lIses, hilt <1oeK not apply the mdhollK amI formulae tlwre develop!'ll to the aetual <1pSigll of a photographil' ohjective.'I'h" writer of this paper wa,;, till'rl'fore, cOlllj)ellell to work out this vart of the tIH'O]'Y flOr hilllKelf awl, as he had always felt that all muthl'maties sllOulll ultimately end in arithnwtie, and that all aritlmwtic SiIOUld ultimately end in doing sOlllething, he reKolved at the outset that the eourse should end in laboratory work in the aetual computation, gl"inllillg awl polishing of lenKes.As to how well this ha,,; Klw('ee(led, 1 will let the illustrations ------� ..