 | James Ferguson - 1764 - 322 pages
...that the image gh may be in its focus, and the eye much about the fame diftance on the other fide, the rays of each pencil will be parallel, after going out of the eye-glafs, as at e and f, till they come to the eye at k, where they will begin to converge by the... | |
 | James Ferguson - Astronomy - 1776 - 546 pages
...that the image gb may be in its focus, and the eye much about the fame diftance on the other fide, the rays of each pencil will be parallel, after going out of the eye-glafs, as at e and /, till they come to the eye at k, where they will begin to converge by the... | |
 | John Imison - 1796 - 476 pages
...that the image gh may be in its focus, and the eye much about the fame diftance on the other fide, the rays of each pencil will be parallel after going out of the eye-glafs, as at e and f, . till they come to the eye at k, where they will begin to converge by the... | |
 | Colin Macfarquhar, George Gleig - Encyclopedias and dictionaries - 1797 - 450 pages
...that the image gh may be in its focus, and the eye much about the fame diftance on the other fide, the rays of each, pencil will be parallel after going out of the eyetrlafs, as at e and/¡ till they come to the eye at t, where they will begin to converge by the... | |
 | Sir Richard Phillips - Electricity - 1807 - 212 pages
...the object, is viewed by the eye L) E, through the leus e ./i which is so placed that the image gh may be in its focus, and the eye about the same distance...side; the rays of each pencil will be parallel after goingout of Ihe eye-glass as at e and/, till they come to the eye at k, where they will begin to converge... | |
 | George Gregory - Astronomy - 1808 - 452 pages
...eye-glass ef. For the eye-glass being so placed that the image gh may be in its focus, and the eye much about the same distance on the other side, the rays of each pencil will be parallel, after going ovit of the eyeglass, as at e andy, till they come to the eye at kt where they will begin to converge... | |
 | Jeremiah Joyce - 1809 - 290 pages
...eye-glass ef, which is so placed that the image gh may be in the focus, and the eye at about an equal distance on the other side, the rays of each pencil...be parallel after going out of the eye-glass, as at c and J\ till they come to the eye at k, by the humours of which they will be converged and collected... | |
 | Edward Augustus Kendall - Encyclopedias and dictionaries - 1811 - 516 pages
...not the object, is viewed by the eye DE, through the lens ef, which is so placed that the image g A may be in its focus, and the eye about the same distance...parallel after going out of the eye-glass as at e audy, till they come to the eye at k, where they will begin to converge by the refractive humour of... | |
 | James Ferguson - Astronomy - 1814 - 420 pages
...eye-glass ef. For the eye-glass being so placed, that the image gh may be .in its focus,* and the eye much about the same distance on the other side, the rays...and /, till they come to the eye at k, where they will begin to converge by the refractive power of the humours ; and after having crossed each other... | |
 | James Smith - Industrial arts - 1815 - 684 pages
...r. The eye-glass, DEF, is so placed, that its focus is at B, and the eye, to view the image, must be about the same distance on the other side. The rays...will be parallel after going out of the eye-glass, but they will be again converged by the refractive powers of the eye, and will form on the retina,... | |
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... and passing through the glass, may be made to converge and unite in as many points between g and h, where the image of the object will be formed; which image is viewed by the eye through the eye-glass ef; for the eye-glass being so placed, that the... 
