| [ car ] in KIDS 글 쓴 이(By): guest (guest) <pcp03102235pcs.y> 날 짜 (Date): 2003년 4월 16일 수요일 오후 12시 25분 00초 제 목(Title): Re: [Q] 룸미러의 작동 원리 A day/night mirror contains two mirrors with an angle (maybe 10 deg or so) between them (one tilted up more than the other). The front one (actually the rear one the way the mirror is installed in the car) is partially silvered, probably 80-90%. This reflects most of the light and is the mirror you use in the daytime; it also reflects away most of the light at night, allowing only some to pass through and reflect off the second mirror, behind. At night, you tilt the entire mirror assembly so that the second mirror is the one that gives the correct rear view, but the first mirror reflects a large percentage of the light to a point above your eyes, so you only see a dimmed rear view. -From google search |