庭ㄟ asked in 科學其他:科學 · 1 decade ago

光學名詞比較(我出20點)

試比較以下名詞,有中文意義、單位最好:

lumen(已是單位)

luminosity

luminous energy

luminous flux

luminous intensity

luminous emittance

luminous efficacy

luminance

illuminance

盡量不要從維基百科來

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  • 1 decade ago
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    lumen流明(光通量的能量單位)luminosity光度(LUX) luminous energy光能量luminous flux光通量luminous intensity光強度(candela, cd)luminous emittance光發射率(lambert)luminous efficacy發光效率(lm/W)流明每瓦luminance輝度(cd/㎡)illuminance=illumination照度(W/㎡) 物體或被照面上,被光源照射所程現的光亮程度,稱為照度,為評量比較照度之大小,常以被照面上單位面積內所接受到由光源投設來之有效光通量來定義:1平方公尺面積上總光通量有1流明時,稱為該面積照度為一勒克斯(lux) 如有疑義歡迎提出討論

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