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http://wenku.baidu.com/view/bcb90808763231126edb1172.html \u51f8\u900f\u955c\u662f\u91cd\u8981\u7684\u5149\u5b66\u4eea\u5668\u5143\u4ef6\uff0c\u5e7f\u6cdb\u7528\u4e8e\u7167\u76f8\u673a\u3001\u5e7b\u706f\u673a\u3001\u653e\u5927\u955c\u3001\u663e\u5fae\u955c\u7b49\u65b9\u9762\uff0c\u5b83\u4eec\u90fd\u662f\u51f8\u900f\u955c\u6210\u50cf\u89c4\u5f8b\u7684\u5e94\u7528\u3002\u5728\u521d\u4e2d\u5bf9\u201c\u51f8\u900f\u955c\u6210\u50cf\u89c4\u5f8b\u201d\u6559\u5b66\u65f6\uff0c\u662f\u7528\u201c\u5b9e\u9a8c\u6cd5\u201d\u6765\u63a2\u7a76\u51f8\u900f\u955c\u6210\u50cf\u3002\u5047...
根据凸透镜的两条特殊光线：过光心的光线其传播方向不变；平行于主光轴的光线经凸透镜折射后折射光线通过焦点．作图如下：
由图可知，物体AB在二倍焦距以外，所成的像是倒立缩小的实像，照相机就是利用了此原理．
简易照相机的制作原理
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绛旓細1銆佸钩琛屼簬涓诲厜杞寸殑鍏夌嚎,缁忓嚫閫忛暅鎶樺皠鍚,鎶樺皠鍏夌嚎閫氳繃鐒︾偣鍑哄皠銆 2銆侀氳繃鍏夊績鐨勫厜绾,缁忓嚫閫忛暅鎶樺皠鍚,涓嶆敼鍙樻柟鍚戙 3銆佹牴鎹厜璺彲閫,閫氳繃鐒︾偣鐨勫厜绾,缁忓嚫閫忛暅鎶樺皠鍚,鎶樺皠鍏夌嚎骞宠浜庝富鍏夎酱鍑哄皠銆 鍑归忛暅浣滃浘瑙勫緥: 1銆佸钩琛屼簬涓诲厜杞寸殑鍏夌嚎,缁忓嚬閫忛暅鎶樺皠鍚,鎶樺皠鍏夌嚎鍙嶅悜寤堕暱绾块氳繃鐒︾偣銆 2銆侀氳繃鍏夊績鐨勫厜绾,缁忓嚬閫忛暅鎶...
绛旓細鎴 鍍忥紝濡傦細鐓х浉鏈 鐗╁湪2鍊嶇劍璺濅笂( u=2f ) ,鍍忓湪2鍊嶇劍璺濅笂 ( v = 2f )鎴 鍍 鍍忓湪鐒︾偣涓2鍊嶇劍璺濅箣闂 ( f 锛渦 锛 2f )鍍忓湪2鍊嶇劍璺濆 ( v 锛 2f )銆佹垚 鍍忥紝濡傦細骞荤伅鏈 鐗╁湪鐒︾偣涓婃椂锛屾病鏈夋垚鍍忥紝鍙樻垚骞宠鍏夌嚎銆傜墿鍦ㄧ劍鐐瑰唴 ( u锛渇 ) ,鍍忎负 鍍忥紝鍍忎笌鐗╁悓...
绛旓細瀹炲儚(鍍忚窛:f<v<2f),濡鐓х浉鏈; (2)鐗╀綋鍦ㄧ劍璺濆拰浜屽嶇劍璺濅箣闂(f<u<2f),鎴愬掔珛銆 鏀惧ぇ鐨勫疄鍍(鍍忚窛:v>2f)銆傚骞荤伅鏈恒 (3)鐗╀綋鍦ㄧ劍璺濅箣鍐(u<f),鎴愭绔嬨佹斁澶х殑铏氬儚銆 5. 鍏夎矾鍥: 绌烘皵 绌烘皵 绌烘皵 姘存按姘 6.浣滃厜璺浘娉ㄦ剰浜嬮」: (1).瑕佸熷姪宸ュ叿浣滃浘;(2)鏄疄闄呭厜绾跨敾瀹炵嚎,涓嶆槸瀹為檯鍏夌嚎鐢昏櫄绾;(3...
绛旓細鐓х浉鏈銆佹姇褰变华銆佹斁澶ч暅:闀滃ご鐩稿綋浜庡嚫閫忛暅鐓х浉鏈:鎴愬掔珛缂╁皬鐨勫疄鍍忋傛姇褰变华:鎴愬掔珛鏀惧ぇ鐨勫疄鍍忋傛斁澶ч暅;鎴愭绔嬫斁澶х殑铏氬儚銆備笁銆佹帰绱㈠嚫閫忛暅鐨勬垚鍍忚寰嬪嚫閫忛暅鎴愬儚瑙勫緥琛ㄥ強鍏夎矾鍥:鐗╄窛 鍊掓 鏀剧缉 铏氬疄 鍍忚窛 搴旂敤 u>2f 鍊掔珛 缂╁皬 瀹炲儚 f<v<2f 鐓х浉鏈 u=2f 鍊掔珛 绛夊ぇ 瀹炲儚 v=2ff<u<2f 鍊掔珛 鏀惧ぇ 瀹炲儚 v>...
绛旓細鍍.___灏辨槸鍒╃敤杩欎竴鎴愬儚瑙勫緥宸ヤ綔鐨(濉厜瀛︿华鍣). 绛旀:(1)9.4(9.2鈥9.5) (2)鍚屼竴楂樺害 (3)缂╁皬;鐓х浉鏈 (2006 鍐呰挋)缁欎綘涓涓忛暅,涓嶇煡閬撴槸鍑搁忛暅杩樻槸鍑归忛暅,璇蜂綘绠瑕佸啓鍑轰笁绉嶅垽鏂柟娉曘 绛:(1) (2) (3) 绛旀:(1)閫忛暅瀵圭潃澶槼鍏(骞宠鍏夋簮)绉诲姩,鍙︿竴渚ф湁浜偣璇存槑鏄嚫閫忛暅 (2)鐢ㄦ墜鍘绘懜,涓棿鍘氥佷袱...
绛旓細鐗╃悊瀛︿腑,鎶婅兘鍦ㄥ厜灞忎笂鍛堢幇鐨勫儚鍙疄鍍,鍗崇敱瀹為檯鍏夌嚎浼氳仛鎵寰楃殑鍍,涓嶈兘鍦ㄥ厜灞忎笂鍛堢幇鐨勫儚鍙櫄鍍,鍗充笉鏄敱瀹為檯鍏夌嚎浼氳仛,鑰屾槸鍏夌嚎鐨勫弽鍚戝欢闀跨嚎浼氳仛鎵寰楃殑鍍忋 渚嬮1:濡傚浘鎵绀,鐢ㄨ嚜鍔ㄩ拡瀛鐓х浉鏈瑙傚療鐑涚劙,鏈変互涓嬪洓鍙ヨ瘽,璇存硶姝ｇ‘鐨勬槸(A )(1)钖勮啘涓婂嚭鐜扮儧鐒扮殑鍍忔槸鍊掔珛鐨;(2)钖勮啘涓婄儧鐒扮殑鍍忓彲鑳芥槸缂╁皬鐨勪篃鍙兘...
绛旓細(1)鐗╀綋鍦ㄤ簩鍊嶇劍璺濅互澶(u>2f),鎴愬掔珛銆佺缉灏忕殑瀹炲儚(鍍忚窛:f<v<2f),濡鐓х浉鏈; (2)鐗╀綋鍦ㄧ劍璺濆拰浜屽嶇劍璺濅箣闂(f<u<2f),鎴愬掔珛銆佹斁澶х殑瀹炲儚(鍍忚窛:v>2f)銆傚骞荤伅鏈恒 (3)鐗╀綋鍦ㄧ劍璺濅箣鍐(u<f),鎴愭绔嬨佹斁澶х殑铏氬儚銆 鍏夎矾鍥: 6.浣滃厜璺浘娉ㄦ剰浜嬮」: (1).瑕佸熷姪宸ュ叿浣滃浘;(2)鏄疄闄呭厜绾跨敾瀹炵嚎,涓嶆槸瀹...
绛旓細23. 鐓х浉鏈鐨鍘熺悊鏄:鍑搁忛暅鍒扮墿浣撶殑璺濈澶т簬2鍊嶇劍璺濇椂鎴愬掔珛銆佺缉灏忕殑瀹炲儚. 24. 骞荤伅鏈恒佹姇褰变华鐨勫師鐞:鐗╀綋鍒板嚫閫忛暅鐨勮窛绂诲湪2鍊嶇劍璺濆拰涓鍊嶇劍璺濅箣闂存椂鎴愬掔珛銆佹斁澶х殑瀹炲儚. 25. 鏀惧ぇ闀溿佹樉寰暅鐨勫師鐞嗘槸:鐗╀綋鍒板嚫閫忛暅鐨勮窛绂诲皬浜庣劍璺濇椂,鎴愭绔嬨佹斁澶х殑铏氬儚. 26.澶╂枃鏈涜繙闀滃垎鎵樻櫘鍕掓湜杩滈暅鍜屼冀鍒╃暐鏈涜繙闀溿傛墭鏅嫆鏈涜繙闀...
