Mac 打呼噜
December 11, 2008 3:21 pm GMT-0700 | In Tech昨天晚上睡不着觉转眼珠玩儿,发现 Mac 那个呼噜灯在视野里是间断的,不连成一条线,于是想到那个呼噜灯应该是脉冲发光的,通过不断调节占空比来调节(视)亮度模拟呼噜。其实早就应该想到的,对于 LED 发光来说,调节占空比显然比调节亮度本身要容易得多,而视觉暂留效果不用白不用。今天到实验室拿仪器测了一下果然如此,脉冲频率 153 Hz 左右。查了一下,苹果有一个相关的专利 US 6658577。
Tags: apple
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Orz……原来如此,以前还真没注意过那个不是连续的……
Comment by Xin LI — December 11, 2008 4:44 pm GMT-0700 #
orz…科学家伟大
Comment by fishy — December 11, 2008 6:48 pm GMT-0700 #
Orz
Comment by Yifeng Gui — December 13, 2008 1:09 pm GMT-0700 #
orz, 科学 A 董!
Comment by kxn — December 13, 2008 5:34 pm GMT-0700 #
nb!
Comment by kisstar — December 18, 2008 12:54 am GMT-0700 #
太厉害了
Comment by hu — March 25, 2009 7:23 pm GMT-0700 #