Apparatus and methods for making capacitive measurements of...

Electric lamp and discharge devices: systems – With cathode or cathode heater supply circuit

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C315S105000, C315S224000, C315S291000

Reexamination Certificate

active

07002301

ABSTRACT:
Apparatus and methods for measuring cathode fall in fluorescent lamps are disclosed. Together with measurements of cathode temperature, such measurements of cathode fall may inform a determination of cathode heater voltage as a function of discharge current (i.e., a cathode-heating-profile) that avoids both sputtering and excess-evaporation.

REFERENCES:
patent: 2794946 (1957-06-01), Larsen
patent: 5055743 (1991-10-01), Ekstrand
patent: 5808422 (1998-09-01), Venkitasubrahmanian et al.
patent: 6294883 (2001-09-01), Weindorf
patent: 6339299 (2002-01-01), Wu et al.
patent: 2003/0057814 (2003-03-01), Garner
patent: 2003/0160574 (2003-08-01), Gary
patent: 2003/0168994 (2003-09-01), Grabner et al.
patent: 2005/0088102 (2005-04-01), Ferguson et al.
patent: 2005/0093462 (2005-05-01), Waymouth et al.
patent: 2005/0134184 (2005-06-01), Abiko
Hammer, E.E., “Cathode Fall Voltage Relationship with Fluorescent Lamps”,IESNA Conference, Miami Beach FL, 1994, (Published Version)- Journal of the Illuminating Engineering Society, Winter 1995, 116-122.
Hammer, E.E., “Comparative Starting Characteristics in Typical F40 Systems”,IESNA Conference Minneapolis MN, 1988, (Published version)- Journal of the Illuminating Engineering Society, Winter 1989, 63-69.
Ligthart, F.S. et al., “Additional Electrode Heating during Dimming of HF Operated Fluorescent Lamps”5thInternational Symposium on Science and Technology of Light Sources, (LS-5), 1989, Paper 17L, York England.
Waymouth, J.F., “Electric Discharge Lamps”, 1971,Mit Press, Chapter IV and Appendix B, 69-112.
Schenkelaars, H.J.W. et al., “Zero Field Thermionic Emission in HF Operated Fluorescent Lamps”,5thInternational Symposium on Science and Technology of Light Sources, (LS-5), Sep. 10-14, 1989, York England, 1 page.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Apparatus and methods for making capacitive measurements of... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus and methods for making capacitive measurements of..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and methods for making capacitive measurements of... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3678374

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.