NDLI: Measurement on the modulation depth of moire and spot size [CRT display]

Content Provider	IEEE Xplore Digital Library
Author	Cho-Liang Liang
Copyright Year	1999
Description	Author affiliation: CRT R&D Div., TECO Inf. Syst. Co. Ltd., Taoyuan, Taiwan (Cho-Liang Liang)
Abstract	It is known that moire is the counterpart of readability/focus performance. Nowadays, the requirement on the readability of a CDT is getting higher and forces the gun designers to make the beam spot smaller and smaller. This makes moire inevitable under certain application conditions, because the visibility of the moire pattern is determined by the electron beam spot, while the structure of mask aperture determines moire wavelength. This paper is devoted to the study of the relationship between the visibility of scan moire and spot size from measurements. The modulation depth (MD) of moire and the electron beam spot are measured by a CCD camera. By varying the horizontal Dynamic Astigmatism and Focus (DAF) voltage, the variations of moire MD with beam spot are acquired. It is found that the spot size at both 5% and 50% of luminance distribution can characterize the moire MD in agreement with theoretical calculation.
Starting Page	261
Ending Page	264
File Size	213439
Page Count	4
File Format	PDF
ISBN	9579734798
DOI	10.1109/ASID.1999.762759
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1999-03-19
Publisher Place	Taiwan
Access Restriction	Subscribed
Rights Holder	SID Taipei Chapter
Subject Keyword	Size measurement Cathode ray tubes Electron beams Wavelength measurement Apertures Optical modulation Charge coupled devices Charge-coupled image sensors Vision defects Voltage
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

A novel vision system for CRT panel auto-inspection

Color reproduction test for CCD image sensors

An improved CLEAR gun for 19" high resolution CDT

The Measurement of CRT Beam Apertures

Robotic food feeder

A Novel High-Voltage Bipotential CRT Gun Design

The Image Formation in Cathode-Ray Tubes and the Relation of Fluorescent Spot Size and Final Anode Voltage

Operation of a CCD moving target indicator

The Measurement of Yoke Astigmatism

Measurement on the modulation depth of moire and spot size [CRT display]

Similar Documents

A novel vision system for CRT panel auto-inspection

Color reproduction test for CCD image sensors

An improved CLEAR gun for 19" high resolution CDT

The Measurement of CRT Beam Apertures

Robotic food feeder

A Novel High-Voltage Bipotential CRT Gun Design

The Image Formation in Cathode-Ray Tubes and the Relation of Fluorescent Spot Size and Final Anode Voltage

Operation of a CCD moving target indicator

The Measurement of Yoke Astigmatism

Measurement on the modulation depth of moire and spot size [CRT display]