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    • 4. 发明授权
    • System for creating naturalistic illumination cycles
    • 用于创建自然光照循环的系统
    • US5589741A
    • 1996-12-31
    • US229533
    • 1994-04-19
    • Michael TermanStephen FairhurstPhlip HughesJoel Levitt
    • Michael TermanStephen FairhurstPhlip HughesJoel Levitt
    • H05B37/02
    • H05B37/0281H05B37/0218Y02B20/42Y02B20/46
    • A naturalistic illumination system for a user at a location having a light source for providing illumination of variable intensity above a non-zero value to the user location. A computer produces a variable signal to control a cycle of variable intensity illumination level output of the light source to correspond to the progressive variation in light level intensity above a non-zero value over a selected time of day period at a geographical location as selected from a computer input device. The variable signal is produced on a daily basis to produce the variable intensity illumination cycle for the same period of time in a manner to progressively shift the time of the start of the production of the variable intensity illumination cycle for the period of time each day over a period of successive days relative to the normal time of start of the production of the variable intensity illumination cycle during the period of successive days at the selected geographical location. The variable signal also can be produced to shift the time of start of the variable intensity illumination cycle for each day and to cause a dawn to dusk or dusk to dawn transition of the illumination cycle transition.
    • 一种用于在具有用于向用户位置提供高于非零值的可变强度的照明的光源的位置处的用户的自然照明系统。 计算机产生可变信号以控制光源的可变强度照度级输出的周期,以对应于在选择的地理位置的选定时间段内的非零值的光级强度的逐渐变化 计算机输入设备。 每天产生可变信号,以在相同时间段内产生可变强度照明周期,其方式是逐渐地将可变强度照明周期开始生产的时间在每天的时间段内变化 相对于在所选择的地理位置的连续几天期间可变强度照明循环的开始生产的正常时间的连续几天。 也可以产生可变信号,以使每天的可变强度照明周期的开始时间偏移,并且使黎明到黄昏或黄昏到照明周期过渡的黎明过渡。