公开(公告)号：US20050151933A1

公开(公告)日：2005-07-14

申请号：US11030118

申请日：2005-01-07

申请人： Wen-Wei Tsai ,  Chi-Neng Tseng ,  Cheng-Kuei Chen ,  Chih-Kun Yang

发明人： Wen-Wei Tsai ,  Chi-Neng Tseng ,  Cheng-Kuei Chen ,  Chih-Kun Yang

IPC分类号： G03B21/14 ,  G03B21/18

CPC分类号： G03B21/18

摘要： A method and apparatus for an anti-melt projection lens cap includes a sensor that detects whether the projection lens cap covers the projection lens and transmits a detected signal to the control unit including two control modes. The first one is projecting a dark image immediately, as the projection lens cap covers the projection lens for longer than a first set time, the control unit switches to a power-saving mode, when it lasts longer than a second set time, the lamp and the system power supply are turned off, then, a fan cools the lamp, the control unit switches to a standby mode. The second one is switching to the power-saving mode directly, when it lasts longer than a second set time, the lamp and the system power supply are turned off, and a fan cools the lamp, then, the control unit switches to the standby mode.

摘要翻译： 防熔体投影透镜盖的方法和装置包括：检测投影透镜盖是否覆盖投影透镜并将检测信号发送到包括两种控制模式的控制单元的传感器。 第一种是立即投影暗图像，当投影透镜盖比投影透镜长于第一设定时间时，控制单元在持续时间比第二设定时间更长时切换到省电模式，灯 系统电源关闭，风扇冷却灯，控制单元切换到待机模式。 第二种是直接切换到省电模式，当其持续时间超过第二设定时间时，灯和系统电源关闭，风扇冷却灯，然后控制单元切换到待机状态 模式。

公开(公告)号：US07273283B2

公开(公告)日：2007-09-25

申请号：US11030118

申请日：2005-01-07

申请人： Wen-Wei Tsai ,  Chi-Neng Tseng ,  Cheng-Kuei Chen ,  Chih-Kun Yang

发明人： Wen-Wei Tsai ,  Chi-Neng Tseng ,  Cheng-Kuei Chen ,  Chih-Kun Yang

IPC分类号： G03B21/14 ,  G03B21/16

CPC分类号： G03B21/18

摘要： A method and apparatus for an anti-melt projection lens cap includes a sensor that detects whether the projection lens cap covers the projection lens and transmits a detected signal to the control unit including two control modes. The first one is projecting a dark image immediately, as the projection lens cap covers the projection lens for longer than a first set time, the control unit switches to a power-saving mode, when it lasts longer than a second set time, the lamp and the system power supply are turned off, then, a fan cools the lamp, the control unit switches to a standby mode. The second one is switching to the power-saving mode directly, when it lasts longer than a second set time, the lamp and the system power supply are turned off, and a fan cools the lamp, then, the control unit switches to the standby mode.

摘要翻译： 防熔体投影透镜盖的方法和装置包括：检测投影透镜盖是否覆盖投影透镜并将检测信号发送到包括两种控制模式的控制单元的传感器。 第一种是立即投影暗图像，当投影透镜盖比投影透镜长于第一设定时间时，控制单元在持续时间比第二设定时间更长时切换到省电模式，灯 系统电源关闭，风扇冷却灯，控制单元切换到待机模式。 第二种是直接切换到省电模式，当其持续时间超过第二设定时间时，灯和系统电源关闭，风扇冷却灯，然后控制单元切换到待机状态 模式。