Energy efficient light bulbs: the magnetic arc spreading fluorescent lamp

Technical Report · Wed Nov 25 00:00:00 EST 1981

OSTI ID:5381895

The contractor developed an energy efficient light bulb based upon the spreading of the plasma via a magnetic field. A non-standard bowl-shaped lamp was designed, and, due to the large glass seal area, considerable difficulty was encountered in applying the phosphor and maintaining the low gas pressure. Thus, the performance data from these lamps could not be repeated. Data on the earlier double-cylinder lamps showed efficacies of 50 lumens per watt and were obtained by the application of the magnetic field. This magnetic arc spreading permits fluorescent lamps to obtain suitably high efficacies from lamp configurations other than the typical linear shapes. This report also reviews the theory of magnetic arc spreading. The possibilities of greater efficacy inherent in MAS have barely been explored. The data presented demonstrate an increase in light output and in efficacy. Incandescent lamps are now available in a multiplicity of shapes and sizes for general purpose and specialty applications, at 17 lumens/watt and lower. Fluorescent lamps can be made efficiently only in long lamps of cylindrical cross-section. MAS lamps, however, bring versatility in shape and size to the energy efficient fluorescent lamp art. Further, demonstration of MAS of several designs can influence the mix of lamps provided to the energy cost-conscious lamp market. 7 refs., 25 figs.

• Research Organization: Lawrence Berkeley Lab., CA (USA)
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 5381895
• Report Number(s): LBL-19859; EEB-L-82-05; ON: DE85016552
• Resource Relation: Other Information: Portions of this document are illegible in microfiche products
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
FLUORESCENT LAMPS
DESIGN
ENERGY EFFICIENCY
MORPHOLOGY
BUILDINGS
EXPERIMENTAL DATA
LIGHTING SYSTEMS
DATA
EFFICIENCY
ENERGY SYSTEMS
INFORMATION
LIGHT BULBS
NUMERICAL DATA
320101* - Energy Conservation
Consumption
& Utilization- Residential Buildings- (-1987)