Discharge lamp with conductive micro-tips

Details Discharge lamp with conductive micro-tips Discharge lamp with conductive micro-tips

2006-04-25

2006-04-25

Williams, Joseph (Department: 2879)

Electric lamp and discharge devices

With luminescent solid or liquid material

With gaseous discharge medium

C313S623000

Reexamination Certificate

active

07034447

ABSTRACT:
A discharge lamp having an enclosure in which a discharging gas is sealed, and a pair of electron-emitting members sealed in the enclosure and between which a voltage is applied. Each electron-emitting member has, at its surface, a plurality of conductive micro-tips and an electron-emitting film which supports the plurality of conductive micro-tips and is made of a material whose secondary emission efficiency is higher than that of the material for the conductive micro-tips with respect to the discharging gas.

REFERENCES:
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patent: 2004/0061429 (2004-04-01), Sakai et al.
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patent: 2002-117771 (2002-04-01), None
patent: 2002-298777 (2002-10-01), None
patent: 2003-132850 (2003-05-01), None
U.S. Appl. No. 10/098,571, filed Mar. 18, 2002, Sakai et al.
U.S. Appl. No. 11/140,222, filed May 31, 2005, Sakai et al.
M. Stammler, et al., “Field Emission Measurements with Micrometre Resolution on Carbon Nanostructures”, Diamond and Related Materials, vol. 8 (1999), pp. 792-797, no month.
Ken Okano, et al., “Low-Threshold Cold Cathodes made of Nitrogen-Doped Chemical-Vapour-Deposited Diamond”, Nature, vol. 381, May 9, 1996, pp. 140-141.

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