
A Guide for Online Information
About:
LIGHTING THE FUTURE
by Rick
Prescott
LEDs (Light Emitting
Diodes) are the wave of the future. All lights have a device within
them that emits light. That device is a lamp. Most lamps found in today's
lights are incandescent lamps. These incandescent lamps are reasonably
tough and reasonably efficientthat is they use reasonable amounts
of electricity to create light and last for reasonable amounts of time
(25 to 500 hours) before they burn out. However, things have been changing.
A new type of lamp
is now available. It is the LED or light emitting diode lamp. An LED
lamp is essentially a semiconductor diode that emits a single color
(monochromatic) light when operated in a forward direction. An LED lamp
consists of the die or light emitting semiconductor material, a lead
frame to support the die, and an encapsulation epoxy that surrounds
and protects the structure. The LED lamp has been around for thirty
years, however, the old units were dim and available in only a few colors.
Today's LED lamps are far brighter than ever before and are now available
in almost any color, size, and voltage.
There is some bad
news about LED lamps. Individual lamps are still not as bright as many
incandescent lamps. Therefore, most LED powered lights require a group
of LED lamps. However, even this can be an advantage because the group
of LED lamps acts as a standby system. Therefore, lighting devices will
not go dark even if one lamp fails. There are a few good features of
these lamps:
- New LED lamps
are extremely tough. There is no glass to shatter and no filament
to break, so shockproof LED lamps can take abuse far beyond that of
the incandescent lamp.
- New LED lamps
are efficient. They can emit light equal to an incandescent lamp while
consuming only 10 percent of the electricity.
- New LED lamps
last for a long time. Many have life spans of 100,000 hoursthat
is 600 weeks, or over 11 years of continuous use!
- LED lamps are
excellent for to use near explosive gasses or liquids.
- LED lamps can
withstand large shock and vibration far beyond those tolerated by
incandescent lamps.
- LED lamps are
energy efficient and environmentally friendly. They do not waste electricity
or require large amounts of batteries. This also means they can be
solar powered more easily.
- LED lamps practically
eliminate costly maintenance.
- LED lamps have
a low failure rate, so they reduce liability when located in areas
where a failed light can cause an accident.
Many new products
have been developed incorporating the new brighter LEDs technology.
They range in application from use in automobiles to home lighting.
Below are links to manufactures of such products.

offers military,
vehicular, marine,
aviation, warning,
industrial, solar
powered, flood and
flashlight, and scuba
LED lights.

Skylites
is a manufacturer of full color, full motion, indoor and outdoor signs
using HP ultra bright LEDs. Price changer signs, time and temperature
signs, exit, open, closed, service, and entrance signs, as well as standard
or custom signs and modules are available.

sells LED
displays and infrared
LEDs.

is India's leading
manufacturer of LED displays comprising of LED: seven
segment displays, alpha
numeric displays, dot
matrix displays, bargraphs
& arrays, light
bars, dual/triple
digit displays, and arrow
indicators.

Creative Energy
Technologies produces LED DC
and AC lighting fixtures.
Karst
Sports is a source for camping, caving, climbing, and rescue equipment,
including LED lighting equipment.

Life
Brite are producers of LED lighting for motorcycles, scooters, trailers,
cars, watercraft, trucks, snowmobiles, and golf carts.

LED
Signs OnLine offers a complete line of electronic displays for indoor
and outdoor applicationsLED displays, electronic message boards,
and programmable moving message led signs.

Bright
View Electronics produces LED indicator lamps, infrared lamps, surface
mount assembly LED, LED array, light sources, LED back lights, numeric/alphanumeric,
and dot matrix displays.

PARA
Light makes high-quality electronic LED displays.

ECGI
are makers of LED lighting fixtures.

Mingstar
offers super high brightness LED lamps.
There are also a
lot of companies that manufacture super bright LEDs in virtually any
color, size, or voltage to be incorporated into devices or products.
Listed below are a few of these companies.

LED
Power offers opto-electronic devices and products. Fiber optic solutions,
laser diode products, wafers and chips, custom design and engineering
to your specifications, discrete LED products, and based LED products
to replace incandescent lamps.

Sun
LED offers a wide range on LEDs and LED applications.

Lumex
is a major globally based designer, manufacturer, and distributor of
opto and photo electronic components and devices.

Marktech
Optoelectronics is a marketer of Toshiba high-performance LEDs and
constant current LED drives.

Micropac's
Optoelectronics Division offers the broadest line of standard high-reliability
optocouplers, visible light emitting diodes, and optoelectronic components
available today.
Also now available
is bright, white LED light. This technology offers users only 1/10th
the power consumption of an incandescent bulb. White LEDs allow you
to bring the light to the task area, to an area where there is no power
source. White LEDs drastically reduce your overall cost to produce light
for any reason, anywhere, from any type of power source. Whether your
light is generated from 110VAC, from batteries of any size, by solar
power, white LEDs will do it more economically and with less maintenance.

The
LED Light is a a source for white LEDs, LED flashlights, light emitting
diodes, LED lamps, and other LED and solar products.

ALF
Enterprises offers white LED lighting and flashlights.

Bicycle
Lighting offers white LED lights and other LED lighting systems
for bicycles.
Glow-Bug
offers a wide variety of LED flashlights and products.

Epicenter
produces white light LED flashlights, solar and dynamo powered flashlights,
and BayGen freeplay wind-up flashlights.
I am always looking
for more material on interesting subjects. If anyone would like to share
information on the subject above or would like to see a resource page
on a particular topic contact me, Rick
Prescott.
The fact that
an item is listed here does not mean we promotes its use for your
application. No endorsement of the vendor or product is made
or implied.
I am always
looking for more material about interesting subjects. If you would
like to share more information about robotics or would like to see
a Resource Page on a particular topic, contact me,
Rick
Prescott.
Circuit Cellar provides
up to date information for engineers, www.circuitcellar.com for more
information and additional articles.
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