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11. 发明申请

US20090021210A1 Internally illuminated sign 审中-公开
标题翻译：内部照明标志
公开(公告)号：US20090021210A1
公开(公告)日：2009-01-22
申请号：US12081613
申请日：2008-04-18
申请人： Menachem Korall , Zvi Perach , Eliyahu Korall
发明人： Menachem Korall , Zvi Perach , Eliyahu Korall
IPC分类号： H02J7/00 , G01D11/28 , F21S4/00 , F21V1/00
CPC分类号： G09F13/06 , G09F13/04 , Y10S362/812
摘要： An illuminated sign, internally illuminated by a source such as one or more LED'S generally located at one end, and having a character panel with at least partially transmissive portions to define the characters of the sign. The character panel is curved so as to face the source more squarely at distances further from the source. By this arrangement, the geometric fall-off of illumination with increasing distance from the source is compensated for by the curvature of the character panel, such that more uniform illumination is provided than with prior art flat panels. Power management systems for solar charged illuminated signs are also described, in which the illumination level of the sign is adjusted according to the ambient solar flux and according to the charge-holding capacity of the battery. The system also warns of the impending end of battery life without interrupting the sign functionality.
摘要翻译：由诸如通常位于一端的一个或多个LED的源内部照明的照明标志，并且具有至少部分透射部分的字符面板以限定符号的字符。字符面板是弯曲的，以便在更远离源的距离处更平直地面对源。通过这种布置，通过字符面板的曲率来补偿距离源的距离增加的照明的几何脱落，使得提供比现有技术的平板更均匀的照明。还描述了用于太阳能充电照明标志的电源管理系统，其中根据环境太阳能通量并根据电池的充电容量调节符号的照明水平。该系统还警告即将结束电池寿命，而不会中断符号功能。

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