afocal

afocal systems 遠焦系統

power afocal 可變屈光度遠焦的

afocal lens[光] 無焦透鏡 ; 改焦鏡頭

afocal attachment[光] 遠焦附加鏡

Afocal System 無聚焦系統

afocal mode 非聚焦模式

afocal doublet 無焦雙透鏡

afocal l 無一定焦點的 ^[1] 

The Optical Transfer Function of an afocal aspherical and non-coaxial optical system is also calculated.

計算了一個非球面非共軸無焦系統的波動光學傳遞函數。

Based on Gauss optics, the theory of afocal zoom expander is analyzed, a afocal zoom expander is designed and successfully applied.

基於高斯光學理論，分析了無焦連續變倍準直擴束系統的原理，實現了無焦連續變倍準直擴束系統的設計，並得到了驗證。

The prism turning theorem as first put forward in China describes the directional conjugate relation between the object and the image space, being applicable to afocal systems.

稜鏡轉動定理是我國首先提出的，實際上此定理描述的是物、象空間方向共軛關係，適用於無光焦度光學系統。 ^[1]