Hive Lighting Intros Light Emitting Plasma (LEP)
People have been trying to find ways to motivate photons, (with the minimum possible effort), more or less since the discovery of fire. This pursuit probably stalled a little with the incandescent filament, but it seems that even in domestic circumstances, people are now starting to recognize that a hot lump of metal in a vacuum is no way to build a light bulb.
It has traditionally been hard to beat gas discharge lighting (HMI, MSR) and fluorescent lights (Kino-Flo, etc) in terms of lumens per watt, especially if we want workable color rendering. Both types can achieve 80 to 90lm/W, with LEDs only slightly behind.I transferred files over FTP, downloaded Web pages ds マジコン using curl, and ran the speed tester at speedtest.net. A low-pressure sodium vapor street light can easily exceed 150lm/W,The settlement resolves the commonwealth's claims fluorescent lights that EarthTronics Inc., which sells mercury-containing compact fluorescent light bulbs but of course it’s bright, screaming orange and of scant use in photography. Also, two of the three efficient daylight emitters – LED and fluorescent – are not capable of producing a point source with real punch and throw.
Now, there’s new technology on the horizon – light emitting plasma, which is automatically great because it sounds like a system they’d use on the starship Enterprise. It’s also a pretty unspecific term, because the glowing gas in an HMI or Xenon is also plasma. Usually, though, LEP refers to an electrodeless design, where there is no metal penetrating the quartz envelope containing the plasma, and energy is applied as microwaves. Researchers claim up to 170lm/W of 5300K light with a CRI of 94.
Ok, you have my attention.
The Underlying Technology
There have been related technologies around for a while, mainly involving a glass sphere full of sulfur bombarded with radio waves until it emits light. Efficiency and color rendering are great, but it’s necessary to keep the sphere rotating to avoid hotspots that would cause failure, and it doesn’t work very well below a kilowatt or two. There’s now a slightly more practical design involving a tiny vitreous bubble half an inch long filled with the sort of things you’d find in any metal halide device. Significant advances have been made to make this happen, with some clever thinking involving solid ceramic waveguides to pipe the microwave radiation from the driver electronics into the emitter.Although this article shows that Cree's led lighting and Philips LED product sales are not equal it is important to note that Philips LED sales
Efficiency approaches twice that of an HMI, with color rendering as good or slightly better, depending on whether you prefer a smooth but lumpy spectral output (HMI) or a jagged but more evenly-distributed one (LEP). Color temperature is about 5300K, drifting to 6100K at 10,Light up the architecturally table lamps interesting parts of your home.000 hours, which as a life-determining factor is many times better than an HMI. It’s flicker free, because most LEP designs use microwave energy at around 900MHz, so it won’t be a problem until you’re shooting any significant fraction of nine hundred million frames per second – only it won’t, because the plasma won’t decay fast enough to pulsate between cycles anyway.
Most current LEP products are fresnels, but presumably, the small light emitting area would make focused beam devices feasible.
Non-Ionizing Radiation
There are two ways to create microwave energy: either with a cavity magnetron, a descendant of World War 2 radar technology that’s found in every microwave oven, or with solid state electronics. The solid state approach is more expensive, but by default a magnetron will produce output modulated with the mains frequency, causing flicker.
The other issue is the need to contain the radio energy.The replacement lighting we feel is far led downlight superior to that of the LED lighting. Microwave energy is non-ionizing radiation and cannot give you cancer. However, it can certainly interfere with radio mics, video links, wireless ethernet, bluetooth and cellphones. Since microwave ovens have the same potential and generally don’t cause these problems, the art of shielding this sort of emission is clearly well established.
People have been trying to find ways to motivate photons, (with the minimum possible effort), more or less since the discovery of fire. This pursuit probably stalled a little with the incandescent filament, but it seems that even in domestic circumstances, people are now starting to recognize that a hot lump of metal in a vacuum is no way to build a light bulb.
It has traditionally been hard to beat gas discharge lighting (HMI, MSR) and fluorescent lights (Kino-Flo, etc) in terms of lumens per watt, especially if we want workable color rendering. Both types can achieve 80 to 90lm/W, with LEDs only slightly behind.I transferred files over FTP, downloaded Web pages ds マジコン using curl, and ran the speed tester at speedtest.net. A low-pressure sodium vapor street light can easily exceed 150lm/W,The settlement resolves the commonwealth's claims fluorescent lights that EarthTronics Inc., which sells mercury-containing compact fluorescent light bulbs but of course it’s bright, screaming orange and of scant use in photography. Also, two of the three efficient daylight emitters – LED and fluorescent – are not capable of producing a point source with real punch and throw.
Now, there’s new technology on the horizon – light emitting plasma, which is automatically great because it sounds like a system they’d use on the starship Enterprise. It’s also a pretty unspecific term, because the glowing gas in an HMI or Xenon is also plasma. Usually, though, LEP refers to an electrodeless design, where there is no metal penetrating the quartz envelope containing the plasma, and energy is applied as microwaves. Researchers claim up to 170lm/W of 5300K light with a CRI of 94.
Ok, you have my attention.
The Underlying Technology
There have been related technologies around for a while, mainly involving a glass sphere full of sulfur bombarded with radio waves until it emits light. Efficiency and color rendering are great, but it’s necessary to keep the sphere rotating to avoid hotspots that would cause failure, and it doesn’t work very well below a kilowatt or two. There’s now a slightly more practical design involving a tiny vitreous bubble half an inch long filled with the sort of things you’d find in any metal halide device. Significant advances have been made to make this happen, with some clever thinking involving solid ceramic waveguides to pipe the microwave radiation from the driver electronics into the emitter.Although this article shows that Cree's led lighting and Philips LED product sales are not equal it is important to note that Philips LED sales
Efficiency approaches twice that of an HMI, with color rendering as good or slightly better, depending on whether you prefer a smooth but lumpy spectral output (HMI) or a jagged but more evenly-distributed one (LEP). Color temperature is about 5300K, drifting to 6100K at 10,Light up the architecturally table lamps interesting parts of your home.000 hours, which as a life-determining factor is many times better than an HMI. It’s flicker free, because most LEP designs use microwave energy at around 900MHz, so it won’t be a problem until you’re shooting any significant fraction of nine hundred million frames per second – only it won’t, because the plasma won’t decay fast enough to pulsate between cycles anyway.
Most current LEP products are fresnels, but presumably, the small light emitting area would make focused beam devices feasible.
Non-Ionizing Radiation
There are two ways to create microwave energy: either with a cavity magnetron, a descendant of World War 2 radar technology that’s found in every microwave oven, or with solid state electronics. The solid state approach is more expensive, but by default a magnetron will produce output modulated with the mains frequency, causing flicker.
The other issue is the need to contain the radio energy.The replacement lighting we feel is far led downlight superior to that of the LED lighting. Microwave energy is non-ionizing radiation and cannot give you cancer. However, it can certainly interfere with radio mics, video links, wireless ethernet, bluetooth and cellphones. Since microwave ovens have the same potential and generally don’t cause these problems, the art of shielding this sort of emission is clearly well established.
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