Please use this identifier to cite or link to this item:
http://essuir.sumdu.edu.ua/handle/123456789/42557
Or use following links to share this resource in social networks:
Tweet
Recommend this item
Title | Design a Phase Plate to Extend the Depth of Field for an Inexpensive Microscope System to Have the Muti-focus Ability |
Authors |
Chow, B.S.
|
ORCID | |
Keywords |
Wave Front Coding Depth of Field Optical Transfer Function Microscope Systems |
Type | Conference Papers |
Date of Issue | 2015 |
URI | http://essuir.sumdu.edu.ua/handle/123456789/42557 |
Publisher | Sumy State University |
License | Copyright not evaluated |
Citation | Chow, B.S. Design a Phase Plate to Extend the Depth of Field for an Inexpensive Microscope System to Have the Muti-focus Ability [Текст] / B.S. Chow // Nanomaterials: Applications & Properties (NAP-2015) : Proceedings of the International Conference. — Sumy : Sumy State University, 2015. — V.4, No2. — 02NAESP05. |
Abstract |
We propose an optical technique, also called wave front coding, that can extend the depth of field optically by phase plate without the need of post digital image processing (PDIP). This technique can replace the present expensive mechanical scanning for achieving 3D information recording or to avoid keeping adjusting the structure of the objective. This phase plate can be fabricated by the emerging technology of laser
direct-write photoresist patterning and subsequent reactive ion etching on a germanium substrate. The niche of our innovation is the exempt of PDIP. The dependence on PDIP causes the conventional researches in this field to develop a deteriorating phase plate to deteriorate the images in different depth to be the same worse. The deteriorated images can thus be fixed digitally by a same inverse optical transfer function method. In contrast, we replace the deteriorating plate with an improving plate. This plate can
improve the defocus image in general. This freedom in limitation enables us to have a better imaging effect when designing the improvement plate. For example, in our design we do not need to worry about the null points existing in the inverse method since there is no inverse method for us at all. |
Appears in Collections: |
Наукові видання (ЕлІТ) |
Views

1

7691502

4

977485

3670

1

1

85576

1

3

1

1

1

21394

1954967

1

489005

245725

19164527

61275089

3668
Downloads

1

128363

1

977486

1

1

1

1

1

2

2

1

977484

1

30637555

30637553

1
Files
File | Size | Format | Downloads |
---|---|---|---|
Chow.pdf | 728.12 kB | Adobe PDF | 63358455 |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.