IR LED 點睇個spec 來知道強度?

距離,角度,transmit power

應該係 Radiant Intensity 同 Continuous forward current 吧.
理論上愈高 forward current 愈"勁"啦.

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回覆 1# takayo72

呢份 Application notes, 唔知啱唔啱你使:
http://www.hamamatsu.com/resources/pdf/ssd/e08_handbook_led.pdf

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Radiant Intensity,Output Power,Spatial Distribution
前兩者總輸出,最後睇你要集中定散射

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