渐进多焦点镜片可为佩戴者提供自远点到近点全程、连续的清晰视觉。检测仪器由光源、聚焦镜、CCD、镜片夹具和转动装置等构成,用于检测渐变镜片视远区、视近区、渐变区的度数变化。提出了仪器装置的总体设计方案,通过CCD采集图像,经过后续处理可以得到镜片的屈光度分布图。结果表明,该仪器操作方便可行。 Progressive multifocal lenses provide the wearer with a clear, continuous vision from the far point to the near point. The testing instrument is composed of a light source, a focusing lens, a CCD, a lens fixture and a rotating device, and is used for detecting the change of the degree of the distance lens, near vision zone and gradual change zone of the gradient lens. Put forward the overall design of the instrument device, through the CCD image acquisition, after the follow-up processing can be obtained lens refractive power distribution. The results show that the instrument is convenient and feasible.