Inspect residual stress in lenses using polarized light.
请选择观察到的干涉色序
| 色序 | 颜色 | 光程差(nm) | 应力等级 | 评估 |
|---|
| Item | Formula / Note | Source / Standard |
|---|---|---|
| Stress-optic law | delta = C · ( sigma1 - sigma2 ) · t; retardation is proportional to the residual stress difference | Frocht MM, Photoelasticity (1941), Wiley |
| Interference colour sequence | Under crossed polarisers the retardation shows as a characteristic interference colour | Michel-Levy A, Lacroix A (1888), Les mineraux des roches |
| Grade reading | Colour order and fringe density grade the stress level; higher order means more residual stress | Frocht MM, Photoelasticity (1941) |
| Origin of assembly stress | Tight rim fit, edging deviations and uneven loading introduce residual stress | ISO 8980-1:2017, Uncut finished spectacle lenses - Part 1: Single-vision lenses |
在正交偏振场下观察镜片干涉色，查询光程差与应力等级，评估镜片装配残余应力大小。
偏振光应力检查器，通过干涉色序查询镜片应力双折射等级与光程差，评估镜片装配应力。。医疗专业工具，基于权威医学标准，仅供参考。