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Chaotic approach to control of lighting

專利號(hào)
US10187956B2
公開日期
2019-01-22
申請(qǐng)人
ABL IP HOLDING LLC（US GA Conyers）
發(fā)明人
David P. Ramer; Jack C. Rains, Jr.
IPC分類
H05B37/02; H05B33/08
技術(shù)領(lǐng)域
chaotic,lighting,light,leds,in,or,fixtures,fixture,control,function
地域： GA GA Conyers

摘要

At least one controllable source of visible light is configured to illuminate a space to be utilized by one or more occupants. A controller causes the source(s) to emit light in a manner that varies at least one characteristic of visible light emitted into the space over a period of time at least in part in accordance with a chaotic function.

說明書

In operation, one of the D/A converters 47 receives a command for a particular level, from the MCU 49. In response, the converter 47 generates a corresponding analog control signal, which causes the associated LED driver circuit 43 to generate a corresponding power level to drive the particular string of LEDs 17. The LEDs of the string in turn output light of a corresponding intensity. The D/A converter 47 will continue to output the particular MCU specified driver setting level, until the MCU 49 issues a new command to the particular D/A converter 47. Thus, the particular set of LEDs 17 will continue to receive analog current and thus will continue to output light at the set analog level until the MCU 47 changes the applicable setting.

The example of FIG. 11 thus implements a form of analog current control for the LEDs 17, albeit to establish contributions to overall intensity of the combined fixture output light as well as to provide variations of color characteristic(s) and/or intensity in accordance with a chaotic function as discussed above relative to FIGS. 1-10. Of course, other control strategies may be applied to the LED channels, such as pulse width modulation, albeit to achieve similar outputs including chaotic function related variations in characteristic(s) of the fixture output light.

權(quán)利要求

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