Please wait, while we are loading the content...
Please wait, while we are loading the content...
Content Provider | Bangiya Bijnan Parishad |
---|---|
Author | সরকার, অন্নপূর্ণা Sarkar, Annapurna |
Description | হলোগ্রাফি এমন একটি কৌশল যা একটি তরঙ্গফ্রন্টকে রেকর্ড এবং পরে পুনর্নির্মাণে সক্ষম করে। আশা করা যায় হলোগ্রাফিক সাহায্যে অদূর ভবিষ্যতে লাইব্রেরীর চেহারাও যাবে একেবারে পাল্টে। আলমারিতে বই এর বদলে থাকবে কিছু হলোগ্রাম অর্থিাৎ কিছু ফটোপ্লেট বা ফিল্মের গুচ্ছ। লেসার-রাশ্মি তৈরি সহজ সাধ্য হলে দেশে-বিদেশে সিনেমা ও টেলিভিশনের পরিবর্তন আসবে। দ্বিমাত্রিক ছবির বদলে ত্রিমাত্রিক ছবি সবাই দেখবে। হলোগ্রমে ধরে রাখা যাবে যাবতীয় খবর ও তথ্য,শুধু গোপন রাখা হবে হলোগ্রাম তৈরি সময় ব্যবহৃত লেসর- রশ্মি তরঙ্গদৈর্ঘ্য। এই প্রবন্ধে শব্দ হলোগ্রাম থেকে আলোকচিত্র সম্ভব এবং মানব কল্যাণে এর ব্যবহার আলোচনা করা হয়েছে। এছাড়াও হলোগ্রাফি কিভাবে তৈরি করা হয় তা চিত্রের সাহায্যে সুন্দরভাবে ব্যাখ্যা করা হয়েছে। Holography is a technique that enables a wavefront to be recorded and then reconstructed. It is hoped that with the help of holographic, the appearance of the library will change completely in the near future. Instead of books in the cupboard, there will be some holograms, i.e. some photoplates or a bunch of films. If it is easy to make laser-rays, movies and television will change in the country and abroad. Everyone will see three-dimensional images instead of two-dimensional images. All news and information can be captured in the hologram, only the laser-wavelength used when making the hologram will be kept secret. This article discusses the possibility of photography from the word hologram and its use in human welfare. Also how holography is made is beautifully explained with the help of images. |
File Size | 6089889 |
Page Count | 8 |
File Format | |
Language | Bengali |
Publisher | বঙ্গীয় বিজ্ঞান পরিষদ Bangiya Bijnan Parishad |
Publisher Date | 1978-12-01 |
Publisher Place | কলকাতা Calcutta |
Requires | PDF viewer Plugin |
Access Restriction | Open |
Subject Keyword | ফটোপ্লেট লেসার রশ্মি ব্যতিচার সিনেম্যাটোগ্রাফ ত্রিমাত্রিক বস্তু হলোগ্রাম Photoplate Interference Cinematograph Hologram Laser Beam Three-dimensional Object |
Alternative Title | Alokchitrane Nabodiganto - Holography |
Content Type | Text |
Educational Use | Reading Self Learning |
Education Level | Class XI Class XII |
Pedagogy | Discussion |
Resource Type | Article |
Subject | Optics |
National Digital Library of India (NDLI) is a virtual repository of learning resources which is not just a repository with search/browse facilities but provides a host of services for the learner community. It is sponsored and mentored by Ministry of Education, Government of India, through its National Mission on Education through Information and Communication Technology (NMEICT). Filtered and federated searching is employed to facilitate focused searching so that learners can find the right resource with least effort and in minimum time. NDLI provides user group-specific services such as Examination Preparatory for School and College students and job aspirants. Services for Researchers and general learners are also provided. NDLI is designed to hold content of any language and provides interface support for 10 most widely used Indian languages. It is built to provide support for all academic levels including researchers and life-long learners, all disciplines, all popular forms of access devices and differently-abled learners. It is designed to enable people to learn and prepare from best practices from all over the world and to facilitate researchers to perform inter-linked exploration from multiple sources. It is developed, operated and maintained from Indian Institute of Technology Kharagpur.
Learn more about this project from here.
NDLI is a conglomeration of freely available or institutionally contributed or donated or publisher managed contents. Almost all these contents are hosted and accessed from respective sources. The responsibility for authenticity, relevance, completeness, accuracy, reliability and suitability of these contents rests with the respective organization and NDLI has no responsibility or liability for these. Every effort is made to keep the NDLI portal up and running smoothly unless there are some unavoidable technical issues.
Ministry of Education, through its National Mission on Education through Information and Communication Technology (NMEICT), has sponsored and funded the National Digital Library of India (NDLI) project.
Sl. | Authority | Responsibilities | Communication Details |
---|---|---|---|
1 | Ministry of Education (GoI), Department of Higher Education |
Sanctioning Authority | https://www.education.gov.in/ict-initiatives |
2 | Indian Institute of Technology Kharagpur | Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project | https://www.iitkgp.ac.in |
3 | National Digital Library of India Office, Indian Institute of Technology Kharagpur | The administrative and infrastructural headquarters of the project | Dr. B. Sutradhar bsutra@ndl.gov.in |
4 | Project PI / Joint PI | Principal Investigator and Joint Principal Investigators of the project |
Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon |
5 | Website/Portal (Helpdesk) | Queries regarding NDLI and its services | support@ndl.gov.in |
6 | Contents and Copyright Issues | Queries related to content curation and copyright issues | content@ndl.gov.in |
7 | National Digital Library of India Club (NDLI Club) | Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach | clubsupport@ndl.gov.in |
8 | Digital Preservation Centre (DPC) | Assistance with digitizing and archiving copyright-free printed books | dpc@ndl.gov.in |
9 | IDR Setup or Support | Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops | idr@ndl.gov.in |