Reference the UV response and fade time of photochromic spectacle lenses.
| 类型 | 最大变深 | 变深时间 | 褪色时间 | 车内变色 |
|---|---|---|---|---|
| 基础灰色/茶色 | ~70-80% | 30-60s | 3-5min | 否 |
| 快速变色 | ~75% | 15-30s | 2-3min | 否 |
| 车内变色(XTRActive) | ~50% | 30-60s | 3-5min | 轻微变深 |
| 玻璃变色 | ~80% | 60-120s | 5-10min | 否 |
| Item | Formula / Note | Source / Standard |
|---|---|---|
| Photochromic kinetics | Colouring and fading follow a first-order exponential: T(t) = T_inf + ( T_0 - T_inf ) · e^( -t / tau ) | Brown GH, Photochromism (1971), Wiley |
| Half-life | t_(1/2) = tau · ln 2, the time to reach half of the total change | Brown GH, Photochromism (1971) |
| Temperature effect | Higher temperature speeds fading, with the rate rising roughly in an Arrhenius manner | Arrhenius S. (1889), Uber die Reaktionsgeschwindigkeit bei der Inversion von Rohrzucker |
| Effect of UV intensity | Stronger UV gives deeper colouring and faster approach to equilibrium | Brown GH, Photochromism (1971) |
根据温度与紫外强度估算变色片变深与褪色时间，辅助变色镜片选型与使用预期管理。
变色片紫外响应褪色时间器，根据温度与紫外强度估算变色片变深与褪色时间。。医疗专业工具，基于权威医学标准，仅供参考。