公开(公告)号：US20080158517A1

公开(公告)日：2008-07-03

申请号：US11874946

申请日：2007-10-19

申请人： CHI-HUNG HSIAO ,  Chun-Ming Shen ,  Ke-Chun Chuang

发明人： CHI-HUNG HSIAO ,  Chun-Ming Shen ,  Ke-Chun Chuang

IPC分类号： G03B21/16

CPC分类号： G03B21/16

摘要： The invention discloses a method for igniting a lamp of a projector. The method includes steps of: (a) sensing a first temperature difference in response to power-off of the projector; (b) in response to power-on of the projector, detecting an aftercooling time and judging whether it is smaller than a predetermined cooling time, if YES, perform step (c); otherwise, perform step (g); (c) sensing a second temperature difference; (d) judging whether a ratio of the second temperature difference to the first temperature difference is larger than a threshold, if YES, perform step (e); otherwise, perform step (g); (e) calculating a re-cooling time; (f) controlling a fan to operate for the re-cooling time to cool the lamp down; and (g) igniting the lamp.

摘要翻译： 本发明公开了一种点燃投影仪的灯的方法。 该方法包括以下步骤：（a）响应于投影机的断电而感测第一温度差; （b）响应于投影机的通电，检测后冷却时间并判断其是否小于预定的冷却时间，如果是，则执行步骤（c）; 否则执行步骤（g）; （c）检测第二温度差; （d）判断第二温度差与第一温度差的比是否大于阈值，如果是，则执行步骤（e）; 否则执行步骤（g）; （e）计算再冷却时间; （f）控制风扇进行再冷却时间以冷却灯泡; 和（g）点燃灯。