ldw

Analysis of the Exposure Dose Distribution for LDW System

激光直接写入系统曝光量分布分析

Laser Direct Writing ( LDW ) is an advanced fabrication equipment of diffractive optical elements ( DOE ), its fabrication precision determines the quality of imaging .

激光直写设备作为衍射光学元件的重要加工设备，其加工精度决定了二元衍射光学器件的成像质量。

With the fast advancement of the optics technology , the research of LDW will be significant in the future , simultaneously advancing the development of ultra-precision fabrication technology .

随着光学技术的飞速发展，研究具有高精度的激光直写设备至关重要，同时又能推进超精密加工技术的进一步发展。

With the development of science and technology , the urgent requirements for large aperture and refinement of micro-optical elements make the writing accuracy of LDW get more and more strict .

随着科学技术的发展，对微结构光学元件的大口径和精细化的需求日益迫切，这就要求更高的激光直写精度。

Laser direct writing ( LDW ) is one of the important technologies used to fabricate diffractive micro-optical elements for its flexibility , simplicity and ability to make complex feature structure with smooth edge .

激光直写技术无需掩模、加工灵活，可制作出边缘平滑的复杂特征结构，是制作衍射微结构光学元件的重要技术手段之一。

Laser Direct Writing ( LDW ) is an advanced fabrication technique for diffractive optical elements ( DOEs ) . LDW equipment adopting laser direct writing technique is substance foundation for researching and manufacturing DOEs .

激光直写是衍射光学元件的一种先进制作技术，激光直写设备是采用激光直写技术制作衍射光学元件并开展其研究的物质基础。

First , Negative photo resists was coated on the metal substrate and the Microcup pattern was exposed by a SLM LDW system . Second , after developing process , the metal mould was made by electroforming .

在金属基材上涂布负性光刻材料、用具有空间调制的激光直写系统曝光形成“微杯”图形，然后通过电铸工艺制作出镍金属模具。

Basing on the Four-axis LDW equipment manufactured by Changchun Institute of Optics and Fine Mechanics and Physics , Chinese Academy of Science , the paper analyses Y-axis transmission system of this equipment systematically , it can provide some consult for designing and detecting high-precision transmission system .

本文基于中科院长春光机所研制的四轴激光直写设备开展了对其Y轴传动系统的分析研究，可以为相关高精度传动系统的设计和检测提供重要的依据。

Objective : To observe the influence of Liuwei Di-huang Wan ( LDW ) on the changes of endothelin ( ET ), inter-leukin - 8 ( IL - 8 ) and creatinine ( Cr ) levels in chronic renal ure ( CRF ) .

目的：观察六味地黄丸治疗慢性肾功能衰竭对内皮素（ET）、白介素-8（IL-8）及肌酐（Cr）的影响。