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動畫:球面鏡成像與牛頓成像公式

在此補充牛頓推導面(透)鏡成像所得的牛頓成像公式:SoSi=f*f 其中f=焦距;So=物距(P)-焦距(f);Si=像距(q)-焦距(f); 以So-Si劃出成像關係軸(即以焦點為座標原點)可得雙曲線. 經座標轉移為P-q軸時,可直接由P-q關係得像之性質.q<0時為虛像,q-p斜率為放大率. 所以由P-q關係圖可輕易對應到物(P)在任何位置的成像性質. 試著拖曳物體至不同位置,觀察其關係圖中q值與斜率比較實際成像情形 可換不同面鏡及不同座標.

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Posted in 光學, 球面鏡.

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