Presentation 1999/3/19
An Improved CLEAR Gun for 19" High Resolution CDT
Hsiang Lin Chang, Chun Hsien Yeh,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) An electron gun for high resolution 19" CDT has been developed, by using improved "CLEAR GUN" design. To avoid cut off uniformity and cathode loading problem, we choose to maintain the 0.4 mm G1 aperture diameter. For the higher resolution requirement, the depth of the common lens and the object distance were increased. The former will enlarge equivalence main lens diameter and spherical aberration was reduced. The latter will cause larger object distance, i.e., smaller magnification. According to the modeling results, the spotsize of the new gun is 25.8% better in horizontal direction and 8.6% in vertical direction than our conventional "CLEAR" gun.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) clear gun / common lens / spherical aberration / magnification / astigmatism
Paper # EID98-249
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Committee EID
Conference Date 1999/3/19(1days)
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Language ENG
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) An Improved CLEAR Gun for 19" High Resolution CDT
Sub Title (in English)
Keyword(1) clear gun
Keyword(2) common lens
Keyword(3) spherical aberration
Keyword(4) magnification
Keyword(5) astigmatism
1st Author's Name Hsiang Lin Chang
1st Author's Affiliation R&D Division, Chunghwa Picture Tubes()
2nd Author's Name Chun Hsien Yeh
2nd Author's Affiliation R&D Division, Chunghwa Picture Tubes
Date 1999/3/19
Paper # EID98-249
Volume (vol) vol.98
Number (no) 666
Page pp.pp.-
#Pages 5
Date of Issue