屈光状态检测——通过使用综合屈光检测仪，验光师将一套镜片放在眼镜的前面测量出眼球是如何聚焦光线的。
Refraction - Using an instrument called a phoropter, your optometrist places a series of lenses in front of your eyes and measures how they focus light.
被检测的热释电红外信号经过滤光镜片和摆动的凸透镜聚焦后，其红外光焦点同样也进行微幅摆动。
The detected pyroelectric infrared signal passes through an optical filter and is focused by the swinging convex lens and the infrared focus is also swinging slightly.
非球面镜片的应用越来越广泛，面形误差是影响非球面质量的重要指标，所采用的面形检测方法非常重要。
Aspheric lens is being applied more and more widely, surface error is an important quality issue, and surface testing method is also very important.
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