When light inputs the surface of optical elements, there is reflection as well as refraction, so ghost light come into being, its focus is called ghost image.

光学元件表面在折射时都存在反射，从而存在设计意图之外的杂散光，其会聚点即所谓鬼点。

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Photographic experts have suggested that the 'ghost' image was a trick of the light caused by the fire.

图象专家曾猜测，幽灵照片是由大火的亮度造成的错觉。

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The novel "Ghost Blows Out the Light" debuted as a smash hit on the Internet back in March last year, and was later released in printed form in October.

小说《鬼吹灯》去年三月在互联网上造成了轰动，十月出版成书。

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After some moments the ghost light will appear down the road.

FORBES: Students Use iPhones to Debunk Ghost Story

Written by John Kamps ("Zathura") and David Koepp ("Indiana Jones and the Kingdom of the Crystal Skull") and directed by Koepp, "Ghost Town" is a light comedy about a misanthropic dentist, Bertram Pincus, who develops an unwelcome sixth sense after losing his vital signs for several minutes during a routine colonoscopy.

CNN: Review: Gervais gives edge to 'Ghost Town'

Dr. SCHAWINSKI: The reason we call it a ghost is because we believe it is something called a light echo.

NPR: What Makes Our Solar System Special?