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| 국가/구분 | United States(US) Patent 등록 |
|---|---|
| 국제특허분류(IPC7판) |
|
| 출원번호 | US-0016632 (1993-02-12) |
| 발명자 / 주소 |
|
| 출원인 / 주소 |
|
| 인용정보 | 피인용 횟수 : 317 인용 특허 : 0 |
An energy-saving lighting control system is selectively operable in either a normal mode, in which certain lighting parameters (e.g., maximum and minimum light levels, fade rates, etc.) are preset and lighting level is determined by which of a plurality of inputs requires the least electrical power,
An energy-saving lighting control system is selectively operable in either a normal mode, in which certain lighting parameters (e.g., maximum and minimum light levels, fade rates, etc.) are preset and lighting level is determined by which of a plurality of inputs requires the least electrical power, or in an off-normal mode (e.g., a calibration or light-adjustment mode) in which certain parameters are adjustable by manually adjusting the position of a movable member, such as a wiper blade in a potentiometer. A microprocessor-based logic and control unit is adapted to automatically switch from the normal operating mode to the off-normal mode in response to movement of the movable member. After a predetermined time period following the most recent movement of the movable member, the logic and control unit stores the new level of the adjusted parameter, and returns to the normal operating mode. Preferably, the system has multiple outputs by which different types of fluorescent lamp ballasts can be controlled.
A lighting control system comprising a logic and control unit which is selectively operable in either a normal mode, in which certain lighting parameters are preset, or in an adjustment mode, in which certain of said parameters are adjustable by manually adjusting the position of a movable member, s
A lighting control system comprising a logic and control unit which is selectively operable in either a normal mode, in which certain lighting parameters are preset, or in an adjustment mode, in which certain of said parameters are adjustable by manually adjusting the position of a movable member, said logic and control means being responsive to movement of said movable member to cause said logic and control unit to switch from its normal operating mode to its adjustable mode, said logic and control unit operating to change lighting levels at a preset rate when said logic and control unit is operating in its normal mode, to change lighting levels at a faster rate when operating in its adjustment mode.
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