Lighting Technology
Future Bulb less futuristic (IAEEL 1-2/00)
LED developments (IAEEL 1-2/00)
Versatile ballast (IAEEL 1-2/00)
12 V IRC lamp for open luminaires (IAEEL 1-2/00)
Osram presents 57W CFL (IAEEL 1-2/00)
Easy-to-Install Sensor Charms Tough Buyers (IAEEL 2/98) California-based Wattstopper won the Swedish technology procurement competition for an easy-to-install and reliable occupancy sensor for private office rooms. Wattstopper, through its European distributor and co-owner Legrand, will deliver 20 000 sensors to a buyer group consisting of some 20 large office buildingg owners over a two-year period.
Two-step CFL by Osram (IAEEL 1/98)At the Hannover fair, Osram presented an integral CFL that has a built-in, two-level light switch called Dulux El Vario.
New ballast may start CFL revolution (IAEEL 1/98)A new power-supply circut from the small French electronics firm HIB marks the birth of a new generation of CFLs with drastically reduced size, excellent power quality characteristics and low price.
Dimmable CFLs available in North America (IAEEL 3-4/97)
Pears on Philips« menu (IAEEL 3-4/97)
Helical CFL not dead (IAEEL 3-4/97)
CFL Harmonics Found Negligiable in Field Test (IAEEL 3-4/97)
Costs of LED traffic lights cut by half (IAEEL 3-4/97)
Low frequencies and other ceramic updates (IAEEL 3-4/97)
Hannover trends in electronics for fluorescent lighting (IAEEL 2/97) Most of the new generation of electronic ballasts presented at the Hannover Fair in April 1997 have power characteristics far better than required by international standards.
Metal-halide lamps use more ceramics (IAEEL 2/97) At the Hannover Fair, Philips presented a new "neutral white", 4 200K version of their ceramic-burner metal-halide lamp.
30 Percent More Efficient Halogen Lamp (IAEEL 2/97) At the 1997 Hannover Fair both Osram and Philips presented a new dichroic reflector halogen lamp that utilizes an infra-red reflective coating on the inner halogen capsule to reflect heat back to the filament, thereby reducing energy consumption.
Circular T5 lamps (IAEEL 2/97)Osram and Philips gave a "sneak-preview" of their circular T5 lamps at the Hannover Fair. ("Sneak preview" probably means that these lamps will not be on the market in the foreseeable future).
High-output T5 lamps (IAEEL 2/97)Already announced in 1996, the new high-output (HO) versions of the T5 lamp were presented at the 1997 Hannover light fair.
Osram joins induction family (IAEEL 2/97)Several years after Philips and GE introduced an electrodeless, fluorescent induction lamp, Osram is launching one of its own. The company has chosen to call its 150-W, 12 000 lumen-system "Endura".
New CFL from Ireland (IAEEL 2/97) The Irish company Tecninter recently launched a screw-base CFL under the name Lumin 8.
Guiding Light Efficient at Times (IAEEL 1/97) Hollow light guides remain an interesting niche application for distributing light from artificial light sources.
T5 Lamps Boost Fluorescent Lighting Efficiency (IAEEL 1/97) New T5 fluorescent lamps in combination with super-reflective aluminium could increase the efficacy of luminaires for fluorescent lamps by more than 30%.
The Efficiency of a Recent HLG Installation (IAEEL 1/97) A recent installation can be found in the post office terminal in Sundsvall, Sweden
A Brief History of Light Guides (IAEEL 1/97)
Green light for green LEDs! (IAEEL 4/96) The first three-color, all-LED traffic lights started operating in October in Stockholm.
Panasonic dims a CFL (IAEEL 1/96) The Japanese manufacturer Matsushita, which sells lamps under the Panasonic brand name, presented a dimmable screw-base CFL in Hannover during the World Light Show.
1000-watt sulfur lamp now ready (IAEEL 1/96) The 1-kW version of the electrodeless microwave sulfur lamp is now available in both the European and US markets, and the number of sulfur lamp installations is growing. In May 1996, a dimmable compact version of the lamp had been developed for the (European) 230-V market.
QL lamp gets more flexible (IAEEL 1/96) Philips announced a set of new features for its QL lamp at the Hannover fair: a smaller ballast, a discharge vessel that is easier to install and replace, and a design with an inherently lower production of EMI, thereby eliminating the need for shielding.
Power Quality and Lighting (IAEEL 3-4/95) Poor power quality of lighting equipment does not yet seem to be a great problem. But harmonic distortion has to be managed in the future.
Power Quality for Beginners (IAEEL 3-4/95) Guest Authors A Rashid Ibrahim and K Seshadri attempt to sort out the confusion about CFLs and power quality. The principles described in the article are valid for virtually all types of lighting equipment.
Lighting power Quality Standards - A Brief International Overview (IAEEL 3-4/95) Standards issued by the International Electrotechnical Commission (IEC) are recommendations and adopted as such by the national IEC committees.
Sixty Percent Less Energy With LED Traffic Lights (IAEEL 3-4/95) Light-emitting diodes in red traffic lights can reduce the energy consumption of traffic signals by 60 per cent and maintenance and lamp replacement costs by 90 per cent.
Red LEDs in Philadelphia and Minnesota (IAEEL 3-4/95) In Philadelphia, the municipal energy office is considering replacing all of the city's red signal heads - between 27000 and 28000 units -with LEDs. If funds come through, the city could begin the retrofit project by mid-1996.
Manufacturers of LED traffic lights (IAEEL 3-4/95)
Give your luminaire a call (IAEEL 3-4/95) An Irish central-lighting energy-management system lets users have their say - by calling the central computer on the phone!
Innovative US lamp procurement (IAEEL 2/95) In August, the US Department of Defense (DoD) launched a technology procurement process aimed at accelerating the commercialization of new, efficient technologies that can fill the gap between standard incandescent lamps and today's CFLs. The winner will be awarded an order of several million lamps.
Optically efficient CFL (IAEEL 1/95) A new helical (spiral-shaped) CFL from GE Lighting can help designers come up with more efficient CFL reflectors.
Slim T5 lamps new industry standard (IAEEL 1/95) Tomorrow's standard fluorescents are likely to be efficient 16-mm diameter T5 lamps, which will replace today's 26-mm T8 lamps in new installations.
Distant Lights (IAEEL 4/94) Hollow light guides, or "light pipes", can be used in many different applications. For instance, they are used in explosion-risk areas and where maintenance is difficult and expensive, such as high-bay industrial lighting, road tunnels, and street lighting.
Compatible ballast for CFLs (IAEEL 4/94) The English electronics manufacturer Triteco recently introduced a very compact electronic ballast intended for use with modular compact fluorescent lamps, mainly in residential applications. One major advantage of the ballast is its compatibility with most lamps on the market.
Sun on Earth (on the Sulfur Lamp) (IAEEL 3/94) In a small, electrodeless bulb powered by microwave energy, the sulfur atom is the star of the show, promising artificial sunlight in a highly efficient way.
Retrofit induction lamp by GE Lighting (IAEEL 1/94) Just in time for the Hannover Light Fair in April, GE Lighting unveiled its new electrodeless induction lamp called Genura. This 23-W lamp has a standard E27 (Edison) socket and is intended as a retrofit lamp for applications where the 100-W incandescent standard R80 reflector lamp is used presently, i.e., downlights and spotlights.
A Graceful Exit (IAEEL 3/93) Although certainly not the dominant user of lighting energy, energy-efficient exit signs offer by far the largest percentage savings potential of all lighting retrofits.
Not cool to be hot (IAEEL 2/93) Heat generated in fluorescent luminaires can result in 15% to 20% less light output and reduced efficacy. To overcome the problem, manufacturers are adopting design solutions developed by researchers.
Philips introduces tri-tube CFLs (IAEEL 1/93) The Philips electronically ballasted CFL product range, PLCE, will undergo a name change as tri-tube CFLs (i.e., three arched tubes) are introduced in the 15, 20 and 23-W versions.
Osram superthin tubes (IAEEL 1/93) Osram presented a super-thin tube at the Hannover Light Fair in April. The tube, which is only 7 mm in diameter, was introduced together with a newly developed, narrow version of their electronic ballast.
3-way table lamp (IAEEL 1/93) A common complaint about residential CFLs is that they are not dimmable. To address the need for adjustable light output, the US manufacturer Mitor has introduced a "3-way" table luminaire equipped with three individually controlled compact fluorescent lamps (CFLs) operated by one electronic ballast.
The E-lamp: good news? (IAEEL 2/92) The "E-lamp" was introduced as the light source that would eventually replace CFLs. But it remains to be seen whether the lamp really is an efficient and economical alternative to CFLs.
It's time for miniature CFLs (IAEEL 1/92) Osram and Philips now introduce miniature CFLs for the narrow E14 fitting. Philips was the first manufacturer to introduce such a small lamp, but after a short time Osram introduced a 5W-lamp that is the smallest CFL ever made.
60 000 Hours of No Maintenance (IAEEL 1/92) Philips recently introduced an induction lighting system, the QL lamp. This is the first induction lighting system on the market with a built-in antenna. The system offers almost 60 000 hours of lighting with practically no maintenance.
New CFL with Exceptional Power Quality (IAEEL 1/92) An important example of advancements in CFL technology was recently presented by a small manufacturer in the United States.