Hamblin Streak Retinoscope manufactured in the United Kingdom. These diagnostic tools were primarily used by opticians to determine the refractive error of the eye. The set typically includes a battery handle and spare bulbs for display or historical interest

英国产汉布林条状检影镜。

该类诊断器械主要由验光师用于检测人眼屈光不正。整套设备通常包含电池手柄及备用灯泡，兼具陈列展示与文物史料价值。（机器翻译）