منابع مشابه
The Composite Structure of Hologram and Optical Waveguide
Optical holography is an excellent technology which can be applied in many fields, such as 3D-displays, information storage, products packaging, interferometer survey, optical connection and computer and so on. The conventional holography include reference wave, object wave and diffracting wave. These optical waves are spatial light and the whole hologram set up is fair size. The optical wavegu...
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The first part of this work summarises the basic knowledge about holography principles including wave optics and diffraction. The summarised knowledge is consequently exploited in the second part of this work that regards the methods of digital hologram synthesis. The synthesis methods were evaluated and compared and the perspective ones were announced. The perspective synthesis methods served ...
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This document is an introduction to the design and fabrication of computer generated hologram (CGH) as I understood them back in 1997. At that time, I was visiting Professor Toyohiko Yatagai1 in Japan. I also included in this document a short description of the application ‘DoCGH’ that I wrote to generate simple hologram. This work was supported by a grant of the Swiss Academy of Engineering Sc...
متن کاملDigital Hologram Coding
A digital hologram includes not only the light intensity but also the depth information of the 3D (dimensional) object. That is, both the whole amplitude and the phase infor‐ mation are necessary to reconstruct the original 3D object, which are included in the interference pattern between the reference light and the object light. Since a digital hologram signal has much different characteristic...
متن کامل1995 Hologram Accuracy
Hologram measurements are becoming more and more popular as a reliable method for identifying bad elements and the tuning of active phased array antennas. Relying on holographic data to adjust phase shifters and attenuators in these antennas can give undesired results if the accuracy of the data is poor. Often measurements can be improved if the error sources can be isolated and quantified. Thi...
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ژورنال
عنوان ژورنال: The Review of Laser Engineering
سال: 1976
ISSN: 0387-0200,1349-6603
DOI: 10.2184/lsj.4.234