Elements of natural philosophy (Volume 2-3) (1850)
Bartlett, W. H. C. (William Holms Chambers), 1804-1893 · New York : Barnes · leaf 260
rialtelescope; § 80. The terrestrial telescope is a common astronomi-cal telescope with the addition of what is termed an ELEMENTS OF OPTICS. 251 erecting piece, which consists of a tube supporting at Erecting piecejeach end a convex lens. The length of this piece shouldbe such as to preserve… … Terrestrialtelescope; , formed; in which case a second image will be formed in the prin-cipal focus of the second lens of the erecting piece, andthe corresponding linear dimensions of these images willbe to each other as their distances from the lenses whose Eelationbetwecnprincipal foci they…
Mechanics · Acoustics · Optics
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