Exif MM * ( 1 2 i (Comparison of OM and TEM A better comparison can be made between the TEM and the light microscope. Not only there are lots of similarities in the basic design, they are also used for the same purpose, i.e. microscopy. The main difference between the two instruments shown above appears to be that one is upside down in comparison with the other (the lamp in the light microscope is at the bottom, the electron source in the TEM at the top). That, however, is just a matter of practicalities in the design. There are already two significant differences apparent from the pictures: In the TEM we do not observe the image directly but the electron beam is converted to light by the viewing screen (In the TEM, one surface covered with a phosphor, which is a materials emitting light when struck by electrons, is the view screen and also called the fluorescent screen) and that light passes through a front window and reaches our eye. The inside of the TEM is in vacuum, not air as the light microscope. There are also a lot of differences between a light microscope and a TEM: e.g., instrument weight and size, specimen size, microscope cost, operation easiness, Illumination source, lenses, etc. Principal features of an optical microscope and a transmission electron microscope, drawn to emphasize the similarities of overall design. P ' P 'Adobe Photoshop CS5 Windows 2018:01:01 09:51:33 v ~( H H Adobe_CM Adobe d T " ? 3 !1AQa"q2B#$Rb34rC%Scs5&DTdE£t6UeuF'Vfv7GWgw 5 !1AQaq"2B#R3$brCScs4%&5DTdEU6teuFVfv'7GWgw ? UNӱ_p jo+?#wEvh}[ԔoNwښX M͗le}F1fV 'tooޯlb &ch<%DAǨH,nxIMG}dMffq06Mk-"A@3j'cxpgoky8ؕz6pcgIIR\o[kwTZ^*d?/[hrY/Ic c>?HnKu>=!uY:cQnCe>#f6UNY}n33}akr:e^ûkns gڗOŕNIU_N ph G|cFQ8 ?DCȮq 6=k-KD6ͿI$ԅMh[c-oM\ZYm ϻ֏J7.샏֨0Wucomocڒ[>?caS@.[kn_" ݟ_Pc1}fn-;y%="I)Z:}UZ*k?fj3nkN8=!/oJJTI%)$IJ^y:s/eY4}V mϳ tk63lƌ,:J Iuqva^ci4znhq=%hd䘆9g-̊{\[Uld53K=Km ?ҭO6[pkˮ-,uOo7WYuqYn25=wʱ6I" [V01ik\?4z[ƶ}|zX"m > /~H.RI$}wz5;'w~ WM5OƳw;@4)«lbً6_nznw,dJk 6cz,[oUgJnn;jcCZ\Z?GՈ(98WMޖ=~[5_=HpL1xr|! ~zQ&0{豶 T{esSY+CvSEV0[, 7ӨJI$STI%#ȣߐMb^ .Ocݏ[mv5N ؟/]Y)wT;@=K1 ?=}]Yf%Nʝ1c9}_~K}_Wǡ_~skȺi]h}_ fOOU[MPZ67.^Ϯuk:}C=VN s п Dc2_.xx9