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照明设计在隧é“中的作用åŒæ ·æ˜¯ä¸¾è¶³è½»é‡ï¼Œåœ¨æ­¤é‡ç‚¹ä»‹ç»éš§é“照明的主è¦ç‰¹ç‚¹ï¼Œå½±å“隧é“ç¯ç…§æ˜Žçš„因素以åŠåº”注æ„的问题ã€?<BR>一ã€äººçœ¼å¯¹å…‰çš„适应特æ€?<BR>　　从眼ç›æž„造å¯çŸ¥ï¼Œè§†ç»†èƒžæ˜¯ç”±é”¥ä½“细胞和æ†ä½“细胞所组æˆã€‚这两ç§ç»†èƒžå¯¹å…‰çš„æ„Ÿå—性是ä¸åŒçš„。æ†ä½“细胞对光的感å—性很高，而锥体细胞对光的感å—性很低，在明亮的环境下（亮度高于几个åŽå¾·æ‹‰æ¯å¹³æ–¹ç±³æ—¶ï¼‰ä¸»è¦ç”±é”¥ä½“细胞å‚与视觉工作。这ç§è§†è§‰çŠ¶æ€ç§°ä¸ºæ˜Žè§†è§‰ï¼›åœ¨æ˜æš—的环境下（亮度在百分之几åŽå¾·æ‹‰æ¯å¹³æ–¹ç±³ï¼‰ä¸»è¦ç”±æ†ç»†èƒžå‚与视觉工作，这ç§è§†è§‰çŠ¶æ€æˆä¸ºæš—视觉；亮度介于明视觉于暗视觉之间的视觉时，æ†ä½“细胞和锥体细胞åŒæ—¶å·¥ä½œã€é”¥ä½“细胞和æ†ä½“细胞对光的æ•æ„Ÿæ€§ä¸åŒï¼Œæ¤Žä½“细胞å¯?55nmçš„å…‰æ•æ„Ÿæ€§æœ€å¤§ï¼Œæ†ä½“细胞å¯?07nmçš„å…‰æ•æ„Ÿæ€§æœ€å¤§ã€?<BR>　　眼ç›ä¸ä½†åœ¨é˜³å…‰ä¸‹èƒ½çœ‹æ¸…物体，在月光下也能看è§ç‰©ä½“，这主è¦æ˜¯ä¸Žé”¥ä½“细胞和æ†ä½“细胞相互交æ¢å·¥ä½œã€çž³å­”的大å°å˜åŒ–以åŠè§†ç½‘膜上的化学å˜åŒ–等因素有关，这ç§å½“视觉环境内亮度有较大幅度å˜åŒ–时，视觉对视觉环境内亮度亮度å˜åŒ–顺应时的感å—性称为适应。适应有明适应ã€æš—适应两ç§ï¼Œäººä»Žé»‘暗处进入明亮环境时，最åˆä¼šæ„Ÿåˆ°åˆºçœ¼ï¼Œè€Œä¸”无法看清周围的景物，但过一会儿就å¯å›žå¤æ­£å¸¸çš„视力，这ç§é€‚应å«æ˜Žé€‚应：人从明亮的环境进入暗处时，在最åˆçš„阶段什么都看ä¸è§ï¼Œé€æ¸é€‚应了黑暗åŽæ‰èƒ½åŒºåˆ†å‘¨å›´ç‰©ä½“的轮廓。这ç§ä»Žäº®å‡ºåˆ°æš—处人们视觉阙é™ä¸‹é™çš„过程就称为暗适应，暗适应和明适应所需è¦çš„适应时间视具体情况有长有短，一般说æ¥æ˜Žé€‚应所需时间短，暗适应所需时间长ã€?<BR>　　在隧é“照明设计时è¦è€ƒè™‘到人的明适应和暗适应因素，é‡è§†è¿‡æ¸¡ç©ºé—´å’Œè¿‡æ¸¡ç…§æ˜Žçš„设计，为了满足眼ç›é€‚应性è¦æ±‚，在隧é“å…¥å£éœ€ä½œä¸€æ®µæ˜Žæš—过渡照明，以ä¿è¯ä¸€å®šçš„视力è¦æ±‚。隧é“出å£å¤„因适应时间很短，一般在1秒以内，故å¯ä¸ä½œå…¶ä»–处ç†ï¼Œä¸”隧é“照明ä¸åŒäºŽå…¶ä»–é“路照明，存在以下几ç§ç‰¹æ®Šçš„视觉问题： <BR>　　ï¼?）进入隧é“å‰ï¼ˆç™½å¤©ï¼‰ï¼šç”±äºŽéš§é“内外的亮度差别æžå¤§ï¼Œå› æ­¤ä»Žéš§é“外部去看，照明很ä¸å……分的隧é“å…¥å£å°±åƒâ€œé»‘æ´žâ€å…¥å£ã€?<BR>　　ï¼?）进入隧é“åŽï¼ˆç™½å¤©ï¼‰ï¼šæ±½è½¦ç”±æ˜Žäº®çš„外部进入å³ä½¿ä¸å¤ªæš—的隧é“以åŽï¼Œé©¾é©¶äººå‘˜è¦ç»è¿‡ä¸€æ®µæ—¶é—´æ‰èƒ½çœ‹æ¸…隧é“内部的情况，这ç§çŽ°è±¡ç§°ä¸ºâ€œé€‚应滞åŽâ€ã€?<BR>　　ï¼?）隧é“出å£å¤„：在白天，汽车穿过较长的隧é“接近出å£æ—¶ï¼Œç”±äºŽé€šè¿‡å‡ºå£çœ‹åˆ°çš„外部亮度æžé«˜ï¼Œå‡ºå£çœ‹ä¸ŠåŽ»æ˜¯ä¸ªâ€œäº®æ´žâ€ï¼Œä¼šå‡ºçŽ°æžå¼ºçš„眩光，使驾驶员感到æžä¸é€‚应：夜间与白天正好相å，隧é“出å£çœ‹åˆ°çš„ä¸æ˜¯äº®æ´žï¼Œè€Œæ˜¯é»‘洞，这样驾驶员就看ä¸æ¸…外部é“路的线型åŠè·¯ä¸Šçš„éšœç¢ç‰©ã€?<BR>　　这几ç§ç‰¹æ®Šçš„视觉问题给隧é“照明æ出了较高的è¦æ±‚，è¦æœ‰æ•ˆåœ°è§£å†³è¿™äº›è§†è§‰é—®é¢˜ï¼Œå¯ä»¥ä»Žä»¥ä¸‹å‡ æ–¹é¢ç€æ‰‹ã€?<BR>二ã€éš§é“照明的设置 <BR>　　隧é“照明按照ä¸åŒçš„区段å¯åˆ’分为引入段ã€é€‚应段ã€åŸºæœ¬æ®µå’Œå‡ºå£æ®µç…§æ˜Žï¼Œå…¶ä½œç”¨åˆ†åˆ«ä¸ºï¼š 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