Modern Cathode-Ray Tubes (CRT) Magnetic Deflection Systems Aberrations Mathematical Model
Rapid and continuous electronic industry development creates higher standarts for image reproduction devices, fromwhich cathode ray tubes (CRT) are currently most widely used, especially in reproduction of color images. Despite theintensive development of new technologies, like liquid crystal displays (LCD) and plasma displays (PDP), it is obviousthat classic CRT will dominate in the market in many years to come.Due to large electron beam deflection angles δ > 45° , the application of conventional magnetic deflection systems aberrationstheory to modern CRT is not accurate. Article analizes mathematical modelling aspects of modern deflection systems. Provided andsubstantiated the mathematical formulas required for aberrations modelling. The proposed model is based on curvilinear optical axistheory. Demonstrated that paraxial approach to deflection aberrations appears as astigmatism. Given method can be easily extended tohigher level aberrations modelling. Ill. 1, bibl. 5 (in Lithuanian; summaries in Lithuanian, English and Russian.).
How to Cite
The copyright for the paper in this journal is retained by the author(s) with the first publication right granted to the journal. The authors agree to the Creative Commons Attribution 4.0 (CC BY 4.0) agreement under which the paper in the Journal is licensed.
By virtue of their appearance in this open access journal, papers are free to use with proper attribution in educational and other non-commercial settings with an acknowledgement of the initial publication in the journal.