critical aperture 中文意思是什麼
critical aperture
解釋
臨界孔徑-
This paper analyses the critical angle method that often use in focus detected. we receive two relations, the first relation between refractive index of the critical - angle prism and focus - error signal ; the second relation between numerical aperture of object lens and out - of - focus error signal
本文針對伺服系統中常用的調焦方法-臨界角方法進行了分析，理論上得到臨界角棱鏡的折射率、物鏡的數值孔徑與離焦誤差信號的關系。 -
The numerical results show that the appearance of focal switch rests not only on the distance of aperture and lens but also on truncation parameter ; focal switch possibly occurs only when truncation parameter is between its critical maximum and minimum truncation parameters
數值結果表明：焦開關的出現不僅與光闌透鏡分離量有關，還與截斷參數值密切相關；僅當截斷參數取某一上、下限之間的值時，才可能出現焦開關。
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