【摘要】 提出一种眼镜度数测量方法,利用位置探测器和3条光线实现对棱镜度、球镜度和散光度等镜片参数的测量.利用该方法能制造出结构简单、自动测量的焦度计.对棱镜度和球镜度测量的误差做了分析,得知提高位置探测器的测量精度是实现该方法的关键.更多还原

【Abstract】 A method of measuring eyeglass lens power is proposed. A position detector and 3 beams of ray are used to measure the prismatic,spherical and astigmatic powers.Based on the method,an automatic focimeter with simple structure can be developed.The measure errors of prismatic and spherical powers are analyzed,from which it is concluded that the precision of the position detector is the key to the method.更多还原