NDLI: High brightness, high resolution, projection CCRT

Content Provider	IEEE Xplore Digital Library
Author	Todd Jr., L.T. Starkey, C.J.
Copyright Year	1977
Description	Author affiliation: University of Kentucky, Lexington, Kentucky (Todd, L.T., Jr.)
Abstract	A projection cathodochromic CRT (CCRT) has been developed that employs sodalite as the cathodochromic material. The construction of the CCRT is similar to that of the Advent Light Guide projection television tube. Images are written at one electron beam exposure and erased at a higher exposure that heats the screen material above its erase threshold. The optical configuration allows the projection of an image that is written on the cathodochromic screen surface nearest the electron gun. Compared to a conventional CCRT where the image appears on the surface most distant from the electron gun, the Light Guide optical arrangement offers distinct advantages of higher resolution, higher contrast, improved erasure quality, shorter erase time, and longer device lifetime. Over 8000, 9×7 dot matrix characters or detailed graphics can be displayed on a 6'-diagonal image screen with a white-area brightness of 300 fL and a contrast ratio in excess of 6:1. Characters can be written at a rate of 240 per second. Full screen erasure is accomplished in 2.8 seconds and selective character erasure requires about 1 msec.
Starting Page	80
Ending Page	80
File Size	336982
Page Count	1
File Format	PDF
DOI	10.1109/IEDM.1977.189168
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1977-12-05
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Brightness Cathode ray tubes Phosphors Optical materials Electron beams Electron optics Image resolution Displays Graphics Material storage
Content Type	Text
Resource Type	Article

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

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