Method of controlling flashing time of external flash lamp
A flash time and flash technology, applied in the flash field, can solve problems such as the inability to improve the photo quality and the inability to find the best flash timing for the xenon flash.
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[0044] figure 2A schematic diagram of suitable flash times according to an embodiment of the present invention is shown. Please refer to figure 2 , the suitable flash time is only between t1 and t2. The flash within this period can be received by the photosensitive elements of each row, that is to say, the flashable time is the overlapping area of the exposure time of all photosensitive elements. If the flash time is earlier than t1, the photosensitive elements in the rear row will not be exposed to light, and if the flash time is later than t2, the photosensitive elements in the front row will not be exposed to light. However, since the mobile device usually performs multi-tasking operation, the delay time from when the user presses the shutter command to t1 or t2 is not fixed. Therefore, there is no feasible and reliable method in the prior art to ensure that the flash time of the external flash can be stably controlled between t1 and t2, so that the use of the extern...
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