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2 definitions found

From: DICT.TW English-Chinese Dictionary 英漢字典

 photochronograph
 動態照相,照相錄秒器

From: Webster's Revised Unabridged Dictionary (1913)

 Pho·to·chron·o·graph n.
 1. Physics An instrument for recording minute intervals of time. The record is made by the power of a magnetic field, due to an electric signaling current, to turn the plane of polarization of light. A flash, coinciding in time and duration with the signal, is thus produced and is photographed on a moving plate.
 2.  Astron. An instrument for the photographic recording of star transits.
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