急問LED 光束直接對望，會否傷害眼睛？

Accidient shine LED torch into eye will not cause permanent damage. But if your eyes were always shined, it could cause serious hurts.
LED (light emmiting dioide) is much brighter then conventional light bulb with the same power supply. But it would not cause same damage as laser do. Direct shining LED light of daily applicants like torvh into eye may cause a temporatory damage, usually can recover.
Daily used laser pointers (semiconductor laser) can cause a serious damage.
Laser is a focus beam, energy density is very high, you can imaginate that the sun light shined on an area 1 square meter is concentrated in 1 square mm. While LED is almost same as strong sun light.

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