照度 换算器
在勒克斯、英尺烛光等照度单位之间转换。
正在转换…
单位信息
勒克斯 (lx)
定义: 国际单位制照度单位，等于每平方米一流明。
历史: 来自拉丁语“lux”，意为光。
当前用法: 用于摄影和建筑中的光级测量。
英尺烛光 (fc)
定义: 照度单位，等于每平方英尺一流明。
历史: 英制传统单位。
当前用法: 在美国用于照明设计。
Phot (ph)
定义: A CGS unit of illuminance equal to 10,000 lux (1 lumen per square centimeter).
历史: From Greek "phos" meaning light; used in photometry within the CGS system.
当前用法: Rarely used in modern practice, but appears in legacy literature and some scientific contexts.
Nox (nx)
定义: An obsolete unit of illuminance equal to 0.001 lux.
历史: Historically used to describe very low levels of illumination.
当前用法: Primarily of historical interest; included for completeness and reference.
照度 换算器
About this conversion category
在勒克斯、英尺烛光等照度单位之间转换。
This converter supports 4 different units including 勒克斯, 英尺烛光, Phot and Nox. Every unit is backed by definitions, histories, and usage examples so you can justify results in documentation or compliance reports.
Fast facts
- Illuminance is the measure of the amount of light falling onto a surface.
- The SI unit for illuminance is lux (lx), which is one lumen per square meter.
- Direct sunlight provides an illuminance of about 100,000 lux.
Popular conversion formulas
- Convert Lux to Foot-candles:
lx / 10.764 - Convert Foot-candles to Lux:
fc * 10.764
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