Invention Grant
US09304374B2 Focal-plane shutter, optical device, and method for adjusting current for focal-plane shutter 有权
焦平面快门,光学装置以及用于调整焦平面快门电流的方法

Focal-plane shutter, optical device, and method for adjusting current for focal-plane shutter
Abstract:
A focal-plane shutter includes: a mechanical portion including: a board including an opening; and a leading blade and a trailing blade capable of opening and closing the opening; and a leading blade actuator and a trailing blade actuator respectively driving the leading blade and the trailing blade, and respectively including a leading blade coil and a trailing blade coil, wherein a current value flowing through at least one of the leading blade coil and the trailing blade coil is adjusted such that one of variations in a leading blade run-up period and a trailing blade run-up period depending on a temperature change corresponds to the other one.
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