Electric lamp and discharge devices – With magnetic device – Field transverse to discharge
Reexamination Certificate
2005-08-18
2008-10-21
Williams, Joseph L. (Department: 2889)
Electric lamp and discharge devices
With magnetic device
Field transverse to discharge
C313S153000, C313S160000
Reexamination Certificate
active
07439661
ABSTRACT:
It is an object of the present invention to provide an image display apparatus in which the change over time of its electron source characteristics is small, and in which uneven brightness and color shift of an image is almost unnoticeable. To achieve this object, the present invention is directed to an image display apparatus containing an electron source substrate having a plurality of electron-emitting devices arrayed thereon, an image forming substrate arranged so as to face the electron source substrate and having a phosphor film and an anode electrode film, and magnetic field generating means, wherein a component parallel to the electron source substrate of a magnetic flux density of a magnetic field generated by the magnetic field generating means is not greater than 0.01 Tesla at any location of the electron-emitting devices.
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Machine translation jp5121012, Masanobu, May 18, 1993.
Machine translation jp9213261, Tetsuro, Aug. 15, 1997.
Gofuku Ihachiro
Kamio Masaru
Mitani Hiromasa
Narusawa Tomoko
Nishimura Takashi
Canon Kabushiki Kaisha
Fitzpatrick ,Cella, Harper & Scinto
Kabushiki Kaisha Toshiba
Williams Joseph L.
Won Bumsuk
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