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在家庭智能照明中应用的测距传感芯片4530A
2022-07-05 12:32:00 【nanfeng775a】
智能照明是智能家居范畴的重要组成部分,自苹果iPhone,iPad,及Android手机和平板日益普及后,智能照明离普通消费者的家庭越来越近,从智能灯泡,到智能灯座和智能控制盒产品已经曝光,其中Philips Hue灯泡的出现,第一次打开了普通家庭的智能照明场景变化的神奇面纱,揭开了低耗,环保,调光,配色的智能化家居照明新篇章。
与传统照明相比,智能照明可达到安全、节能、舒适、高效的目的,因此智能照明在家居领域、办公领域、商务领域及公共设施领域均有较好发展前景。中国智能照明市场并未成熟,智能照明的应用领域还主要集中在商务领域和公共设施领域,酒店、会展场馆、市政工程、道路交通领域内对智能照明的采纳使用较多;此外,办公建筑和高端别墅项目也有采用智能照明。随着国内智能照明研发生产技术的发展和产品推广力度的加大,家居领域的智能照明应用有望得以普及。
环境光传感器主要由光敏元件组成。光敏元件发展迅速、品种繁多、应用广泛。环境光传感器可以感知周围光线情况,并告知处理芯片自动调节显示器背光亮度,降低产品的功耗。例如,在手机、笔记本、平板电脑等移动应用中,显示器消耗的电量高达电池总电量的30%,采用环境光传感器可以最大限度地延长电池的工作时间。
光距感 接近传感芯片 - WH APS 4530A是一种光到数字转换器,它结合了先进的环境光传感器,先进的接近传感器和高效率的红外LED灯。环境光传感器(ALS)内置了一个滤光器来抑制红外,并提供了一个接近人眼反应的光谱。ALS可以在黑暗到阳光直射下工作,可选择的探测范围约为40dB。双通道输出(人眼和清晰),使ALS在不同光照条件下具有良好的光比。近距离传感器(PS)内置了一个940nm的滤光片,用于环境光的抗扰,因此PS可以检测反射红外光,具有高精度和优良的抗扰性。WH4530A具有可编程中断功能,对ALS和PS具有基于阈值的迟滞。
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