If the creature's spell resistance succeeds in preventing the effect of a spell, its central eye begins to glow with red light equivalent to that of a torch.

如果它的法术抗力抵抗住了法术效果，中央主眼会开始炽热，并发出如同火炬般的红光。

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That might be about to change, though, as South Korea's state-owned Korea Electronics Technology Institute has announced a new image sensor chip that promises to take "vibrant photos" in extreme low-light conditions -- all the way down to 1 lux, which is the equivalent light output of a candle shining one meter away.

ENGADGET: South Korean image-sensing chip enables 1-lux photography

In the same way, the pattern of holes in a crystal fibre can create the equivalent for light of a graphite core and a diamond cladding.

ECONOMIST: A new approach to making optical fibres

Our target is to make the price of this bulb equivalent to incandescent light.

WSJ: Seoul Semiconductor's LED-Lighted Path