long focal-depth

基本解釋

This paper puts forward a conception of a non-diffraction structured light (NDSL), which has characteristics such as linear structure, long focal-depth and narrow line-width, etc.
提出了一種無(wú)衍射結(jié)構(gòu)光概念，這種光具有線性結(jié)構(gòu)、焦深長(zhǎng)、線寬小等特點(diǎn)。

長(zhǎng)焦深
For the purpose of studying the characteristics of achromatic aberration and focal depth extension,an achromatic method in visible band was presented for the optical imaging objective with long focal depth based on the refractive-diffractive hybrid objective.
為兼顧成像系統(tǒng)消色差及擴(kuò)展焦深的特性,提出了一種基于折/衍混合原理的長(zhǎng)焦深成像物鏡在可見光波段內(nèi)消色差的方法。
電子、通信與自動(dòng)控制技術(shù)
長(zhǎng)焦深
We calculate the results, which show the changes of the system's optical behavior, with three different equations of long focal depth.
分析了在三種不同的長(zhǎng)焦深公式下,長(zhǎng)焦深透鏡加上可變?chǔ)邢辔黄M合所獲得空心光束的光學(xué)特性的改變。