毕业设计论文：智能视力保健台灯.doc

文档介绍：DDDDDDDDDDDDDDDDDDDDDDDDDD 智能视力保健台灯(毕业设计论文) 摘要台灯是晚上办公、学****场所必不可少的照明工具。然而,普通的台灯光线强度只有一种。当室内环境光线的强弱改变时,台灯的光线强度不能改变,长期使用会对视力产生不良的影响。因此, 一种新型视力保健台灯应运而生,它采用触摸开关控制,可在开灯后其亮度由暗逐渐变亮;关灯时亮度逐渐变暗, 减小对眼睛的刺激,延长灯泡的使用寿命;可检测环境光线强度,自动调整灯光亮度,使眼睛不易疲劳,保护视力,并可手动调光,使用十分方便。电路主要由触摸开关电路、同步触发电路、调光缓变电路、自动和手动调光电路、LED 光源电路组成。关键词: 视力保健台灯;触摸开关控制;调光缓变电路; LED 光源;自动调光电路 Abstract Table lamps, night office, study site lighting tools is essential, however, the average light intensity is only one lamp. When the intensity of light changes in indoor environment, the lamp's light intensity can not change the long-term use will have an adverse effect on visual acuity. Therefore, a new eye care lamps came into being, which uses touch-switch control, the brightness in the dark after the lights gradually brighten; lights gradually dimmed the brightness, reduce stimulation of the eyes, extend the use of light bulbs life; can detect ambient light intensity and automatically adjusts the light levels so that the eye isnot easy fatigue, protect eyesight and can manually adjust light, easy to use. Circuit mainly by the DDDDDDDDDDDDDDDDDDDDDDDDDD switch circuit, synchronous starting circuit, dimming slowly varying circuits, automatic and manual dimming circuit, LED light source circuit. Keywords :Eye care lamps;touch swi t ch;dimmer slowly varying circuit ;LED light source; automatic dimming circuitry 目录摘要........................................................................................................................... I ABSTRACT ................................................................................................................. II 第1章绪论.............................................................................................................. 1 课题背景............................................................................................................ 1 立体目的和意义................................................................................................ 1 技术指标及要求................