文档介绍：数字全息显微镜的光学系统设计
摘要
数字全息显微术是把数字全息和全息显微相结合,用CCD代替传统的全息干板来实现全息显微的过程。
本文通过理论的分析和计算,完成了以下工作:
1)在数字全息的方法上,介绍和比较了几种记录和再现的方法;并选择了无透镜傅里叶变换与同轴全息相结合的光路,D分辨率和简化光路。在系统光路中加入相移技术,消除零级和共轭像。
2)在1/D情况下,利用干涉仪原理设计出了基本光路;分析并选择了各个部件的具体参数;分析计算了系统中需要满足的条件。计算出在几种物镜预放大情况下,系统的分辨率和放大率。
在对微小物体做近距离显微时,。
关键词:全息术;数字全息显微;预放大技术。
Optical system design of digital holographic microscopy
Abstract
Digital holographic microscopy digital holography and holographic bined D, instead of the traditional holographic plate to realize the process of holographic microscopy.
In this paper, through the theoretical analysis and calculation, completed the following works:
1)Introduced pared several recording and reproducing methods in the selection of digital holographic method,and chooses the lens-less Fourier transform and coaxial holographic to be the light path which can D resolution and simplified the optical path. In the optical system with phase shifting technique to eliminate the effect of zero order and conjugate image.
2)In 1/2 D cases, using an interferometer principle to design the basic light path; Analysis and select the specific parameters ponents;Calculate the conditions to meet the system. Calculate the system resolution and magnification in several objectives.
In the short distance microscopic, the microscopic system can reach 1μm resolution lenth,
Key Words: Holography;Digital holography microscopy; Preamplification -technology;
目录
摘要 I
Abstract II
1 绪论 1
1
1
2
3
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2 全息的基本理论 4
4
4
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7
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球面参考光数字全息图的记录条件 10
3 数字全息图的分辨率和再现像质量的提高 13
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再现像质量的提高 13
相移法 14
4 预放大数字全息术 16
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5 反射式数字全息显微镜的光学系统设计 19
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实现数字全息条件的分析 20
设计思路与基本光路 20
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