 | Sir Richard Phillips - 1807 - عدد الصفحات: 212
...the rays of tlu sun; which act* ** a. double convex lens. 215. If another double convex FG fig. 41, be placed in the rays at the same distance from the focus, it will so refract the rays, that ihey shall gooutof it parallel toone another. tJImstralten. It is evident that nil the... | |
 | William Nicholson - 1809 - عدد الصفحات: 716
...it to the contrary sides, in the same manner as they converged in coming to it. Ifaiother glass, FG, of the same convexity as DE, be placed in the rays at the, same distance from the focus, it will refract them so, as that, after, going out of it, they will be all parallel, as be ; and go on in the... | |
 | William Nicholson - 1809 - عدد الصفحات: 684
...the same manner as they converged in coming to it. Ifanother glass, FG, of the same convexity as DK, be placed in the rays at the same distance from the focus, it will refract them so, as that, after going out of it, they will be all parallr-l, as be ; and go on in the... | |
 | William Shepherd, Jeremiah Joyce, Lant Carpenter - 1815 - عدد الصفحات: 598
...same manner as they converged in coming to it. And if another glass, FG, of the same convexity as AB, be placed in the rays at the same distance from the focus, it will refract them so, as that, after going out of it, they will be all parallel, and proceed in the same... | |
 | William Nicholson - 1821 - عدد الصفحات: 402
...it to the contrary sides in the same manner as they converged in coming tu it. If another glass, FG, of the same convexity as DE, be placed in the rays at the same distance from the focus, it will refract them so, as that, after going out of it, they will be all parallel, as 6 c ; and go on in the... | |
 | William Nicholson - 1821 - عدد الصفحات: 406
...it to the contrary sides in the same manner as they converged in coming to it. If anoto glass, FG, of the same convexity as DE, be placed in the rays at the same distance from the focus, it will refract them so, as that, after going out of it, they will be all parallel, as bc ; and go on in the... | |
 | James Ferguson - 1823 - عدد الصفحات: 406
...sides, in the same manner FfG, as they converged in the space DfE in coming to it. If another glass FG, of the same convexity as DE, be placed in the rays at the same distance from the focus, it will refract them so, as that after going out of it, they will be all parallel, aaaoc; and go on in the... | |
 | Jeremiah Joyce - 1825 - عدد الصفحات: 354
...? Tutor. Certainly, in the same manner as they jConverged in coming to it ; and if another glass y G, of the same convexity as DE, be placed in the rays at the same distance from tlie focus, it . will so refract them, that, after going out of it, * they will be parallel, and so... | |
 | Sir Richard Phillips - 1826 - عدد الصفحات: 236
...the rays of the sun, which acts as a double convex lens. 164. If another double convex FG, fig. 44, be placed in the rays at the same distance from the focus, it will so refract the rays back again, that they will go out of it parallel to one another. lltias. It is evident that... | |
 | Levi Washburn Leonard - 1827 - عدد الصفحات: 398
...focal distance, which is equal to half the diameter of the sphere. If another double convex lens FG be placed in the rays at the same distance from the focus, it will so refract the rays, that they shall go out of it parallel to one another. It is evident that all the rays except... | |
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If anoto glass, FG, of the same convexity as DE, be placed in the rays at the same distance from the focus, it will refract them so, as that, after going out of it, they will be all parallel... 
