专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US5833343A Light-source switching and driving unit 失效
标题翻译：光源开关和驱动单元
公开(公告)号：US5833343A
公开(公告)日：1998-11-10
申请号：US665558
申请日：1996-06-18
申请人： Etuo Nakano , Suwao Satoh
发明人： Etuo Nakano , Suwao Satoh
IPC分类号： G02B23/26 , A61B1/06 , F21V19/04 , H05B39/10
CPC分类号： A61B1/0669 , F21V19/04 , H05B39/10 , A61B2560/0276
摘要： The present invention is a light-source switching and driving unit where an accurate stop operation and a strong holding force are obtained and which is capable of reducing a noise and preventing an impact to light-source lamps. In this unit, a plurality of light-source lamps for being switched and used are disposed. When a burnout sensor detects the burnout of a lamp being currently used, a spare light-source lamp is moved to a predetermined position by a stepping motor. In switching one lamp to another lamp, a pulse generating circuit generates a drive pulse which gradually increases when the stepping motor is started and a drive pulse which gradually decreases when the stepping motor is stopped. The stepping motor is driven by these drive pulses. With this, in switching one lamp to another lamp, a slow operation can be realized when the motor is started and when the motor is stopped.
摘要翻译：本发明是一种光源切换和驱动单元，其中获得精确的停止操作和较强的保持力，并且能够降低噪音并防止对光源灯的冲击。在该单元中，设置用于切换和使用的多个光源灯。当烧坏传感器检测到当前使用的灯的烧坏时，备用光源灯由步进电机移动到预定位置。在将一个灯切换到另一个灯时，脉冲产生电路产生当步进电机启动时逐渐增加的驱动脉冲和当步进电机停止时逐渐减小的驱动脉冲。步进电机由这些驱动脉冲驱动。因此，在将一个灯切换到另一个灯时，当电动机启动时和电动机停止时，可以实现慢速操作。

IPRDB

热门服务

关于我们

友情链接

联系方式