Title: General Illumination and LED Basics
1General Illumination and LED Basics
2General Illumination -Terms and Definitions
- General Illumination - a term used to distinguish
between lighting that illuminates tasks, spaces,
or objects from lighting used in indicator or
purely decorative applications. In most cases,
general illumination is provided by white light
sources, including incandescent, fluorescent,
high-intensity discharge sources, and white
LEDs. - Ballast - an electrical device used with
fluorescent or HID lamps to supply sufficient
voltage to start and operate the lamp but then to
limit the current during operation. - Compact Fluorescent Lamp (CFL) - a generic name
used for a whole family of small, single-ended
fluorescent lamps with a folded, bridged, or
spiral glass tube design and with high color
rendering (CRI gt 80) and a long life (gt 8,000
hours). - Color Rendering Index (CRI) - a measure of a
lamps ability to render colors accurately. The
scale ranges from 1 (low pressure sodium) to 100
(the sun). A CRI of 85 is considered to be very
good. - Correlated Color Temperature (CCT) - relative
color appearance of a white light source,
indicating whether it appears more yellow/gold or
more blue, in terms of the range of available
shades of white. This is measured on a Kelvin
scale. 5000K is considered midday sunlight.
Kelvin Scale
3- Cove Lighting - a lighting system comprised of
light sources shielded by a ledge or recess, and
distributing light over the ceiling and possibly
the upper part of the wall. - Direct Current (DC) - electric current without
alterations. DC current is usually supplied by a
battery, a transformer, or photovoltaic cells. - Efficacy - a measure used to compare light output
to energy consumption. Efficacy is measured in
lumens per watt. A 100-watt light source
producing 1750 lumens of light has an efficacy
(efficiency) of 17.5 lumens per watt (L/W). - Fluorescent Lamp - a low-pressure mercury
electric-discharge lamp (light bulb) in which a
phosphor coating on the inside of the glass
tubing transforms some of the ultraviolet energy
created inside the lamp into visible light. - Halogen Lamp - a type of incandescent lamp (light
bulb) that contains halogen gases (such as
iodine, chlorine, bromine, and fluorine), which
slow the evaporation of the tungsten filament. - HID Lamp - high intensity discharge (HID) lamps
(light bulbs) have a longer life and provide more
light (lumens) per watt than most other light
sources. Available in mercury vapor, metal
halide, high pressure sodium, and low pressure
sodium types.
Cove Lighting
Halogen Metal Halide
4- Hard Wired - technically means that the light
fixture is permanently connected to an electrical
source. The light fixture is not hard-wired if it
gets power via a cord plug. - Incandescent Lamp - lamp (light bulb) in which
light is produced by means of an element heated
to the point of incandescence by the passage of
an electric current. - Luminaire - a complete lighting unit consisting
of a lamp (light bulb) or lamps, a housing, and a
connection to the source of electrical power. - Line Voltage - usually 120 volts. This is the
power coming into a building or outlet. - Low Voltage - usually 12 volts but sometimes 24
volts. - Lumen - a unit of measure used to describe the
amount of light that a light source produces or
emits. - Wattage - the amount of electrical power consumed
by a lamp or light fixture measured in watts
Watts Volts x Amps
Watts x Hours x Local Cost Energy
Cost 1000
5LED 101- Terms and Definitions
- Light Emitting Diode - a semi-conductor diode
(chip) that emits light when an electrical
current is applied in the forward direction of
the device, as in the simple LED circuit. - Binning In general, LEDs are mass produced in
a bin. These bins are made with the same
semiconductor material, thus they produce the
same shade of color. A different bin of LEDs has
the chance for variance in semiconductor
material, thus possibly producing a different
shade of the same color. - Solid State Lighting (SSL) This is LED
technology in general. The term refers to the
solid nature of the LED. There are no gasses,
filaments, or chemicals producing the light. This
also gives it resistance to shock and impact that
older technologies cannot provide. - RGB- The combination of Red, Green, and Blue
Leds to produce 16.7 million colors. This gives
the ability to do color changes, washes, and even
video capability. - High Brightness LED LEDs that individually
consume 1 watt or more. These are used in
spotlight, floodlight, and general illumination
applications. - Printed Circuitry Board (PCB Board) In LED
applications, A PCB is a thin board made of
fiberglass or a similar material. Electrical
wires are "printed" onto the board, connecting
the LEDs together. This allows for superior
controllability.
Packaged 5mm LEDs
RGB
High Brightness LED 1watt
6- Viewing Angle LED is a very directional light
source and some diodes can be made with a narrow
or wide viewing angle. - SMD This means Surface Mount Device. Basically,
the LEDs are mounted on a continuous strip or
bar (PCB Board) without penetrating the backing
(ie, the underside is smooth). - Through-Hole-Technology The diode penetrates
the back of the PCB board so that only the diode
is visible from the front. All circuitry and
soldering is on the back of the strip or bar.
Through-Hole SMD
7LED - Advantages and Challenges
- ADVANTAGES
- LEDs produce more light per watt than
incandescent bulbs, and are rapidly approaching
CFLs. - LED light is directional and can be focused to
highlight areas without the use of reflectors. - LED lifetime is not effected by on/off cycling.
Fluorescents burn out more quickly. HIDs require
warm up and cool down periods. - LEDs produce instant light when turned on. They
achieve full brightness is micro seconds. - LEDs, being solid state components, are
difficult to damage with external shock, unlike
fluorescent and incandescent bulbs which are
fragile. - LEDs are a true GREEN lighting source as they
do not contain any harmful chemicals or gasses.
Fluorescents contain mercury, and Incandescent
contains lead. - Average lifetimes frequently average 50,000
hours, and even up to 100,000 hours in certain
applications. Fluorescents - 15,000 to 20,000
hrs., Incandescent 1,500 to 2,500 hrs. - LEDs rarely fail to the point of replacement.
Fluorescent and Incandescent can burn out
completely where LED failure is usually
classified as light depreciation (fading over
time). - LEDs ARE the most efficient light source. In a
tough economy right now, LEDs are a great way to
lower monthly energy bills, and save the planet
at the same time. - LEDs do not emit any IR or UV. This is
especially important in perishable food displays.
Incandescent
Fluorescent CFL
8 CHALLENGES
- Cost has been the biggest obstacle for LED to
overcome. We are approaching the price point
where LED makes sense in EVERY application, but
we are not quite there yet. For new construction
or large remodels, LED makes perfect sense as the
payback will be much faster. - Optics are needed with LEDs to disperse light.
Optics can lower actual light output. The
technology is combating this with higher
brightness LEDs. - Thermal Management is usually the largest
technical problem to overcome. Heat can lower LED
lifetime which is why we say that the lifetime
depends on the application. Insulated areas where
heat cannot escape can be detrimental to LED
life. Some technologies, however, are built with
mechanisms (heat sinks) to fight this. - Availability of LED products on hand is usually
limited. Some Lighting Suppliers are starting to
carry a limited selection, but the full range of
possibilities is yet to be introduced.
9What does this all mean?
- LED is still a relatively new technology in
comparison to incandescent and fluorescent. This
means that our general knowledge in lighting is
invaluable in explaining the benefits of LED. - These terms and concepts are to give you a basic
background. They are not the end-all of
knowledge. The true intention of this is to spark
your own research and make it more familiar. - We need to be able to talk shop with our
potential distributors. This background will give
you some credibility when talking to experienced
re-sellers.
Innovative LED Lighting Design
- This will help you when reading spec sheets or
competitor brochures. These technical specs, and
your understanding of them ,can be the difference
in closing a sale. - Eventually, we will all become lighting designers
in some form or another. Knowing the general
electricity requirements, the effect that a light
will have, and how to apply it will be key.
Traditional Landscape Uplighting
10LED NEON FLEX - Breakdown
What is it?
LED Neon Flex was developed over 20 years ago,
and several manufacturers in China claim to have
the rights to it. It is used for an alternative
to exposed neon bordering, and is truly the
simplest, yet most advanced solution for long,
power consuming runs. It can bend and flow with
rooflines and edges without fear of breakage.
Planning and Installation times for users are
drastically reduced with its pure
simplicity. Different forms of LED Neon Flex
have circulated around the U.S. market for 7-8
years. Most of these products have been cheap and
poorly constructed imitators. This is why many
early applications failed, and thus, left a bad
taste in the mouth of those first willing to try
it. As a result of a great partnership with our
manufacturer, Brilliant Concepts has unveiled the
LED Neon Flex-Plus. The first and only Patented,
UL Listed, Guaranteed, and Inventoried product
of this type in the North American Market.
Problems of the past have been addressed by our
manufacturer, and we feel confident that we are
providing the best product on the market.
11Uses and Applications
- Exposed Neon We must be careful in our
language when explaining our product as a neon
replacement. We must be clear that it as an
exposed neon replacement or alternative. Neon
is also used to do face lit and halo lit channel
letters.This seems to be an industry wide term,
so we should go with the flow. - Architectural Bordering This is the intended
application for LED Neon-Flex, and although it
works well in other applications, this is where
it truly shines. It can accent sharp edges, or
flow and bend with a tight curve or a long
radius. Just about every retail or service
related business can benefit even from the simple
roof outline. This is proven to draw attention
and curiosity. It may be one of the simplest, yet
most effective forms of advertising.
LED NEON FLEX BORDERING
Exposed Glass Neon Sign Bordering
12- Interior Design This is a great avenue as LED
Neon-Flex can go places previously forbidden by
Glass Neon. It is a basic industry standard to
NOT mount exposed Glass Neon below the 8 ft. line
due to its fragility and shock hazard. LED Neon
Flex can be mounted on stairs, under bar
countertops, and embedded in floors. This is due
to the durable nature of LED technology and the
added protection of the PVC jacket. - Signage LED Neon-Flex can be used in some
signage applications. The effect is debated among
sign industry insiders. Some have said that LED
Neon-Flex works well for Face-Lit Channel
Letters, Halo-Lit Channel Letters, and Sign
Bordering. Others say that it is only bright
enough for bordering. There is also a 24v version
that is a smaller diameter and perfect for making
custom signs.
Bar Floor Outline and Bar
Countertop
Halo-Lit Channel Letter
Neon-Flex Ultra Thin 24v- Custom Signage
Face-Lit Channel Letter
13 Innovators vs. Imitators
There are many factors involved in making such a
simple product. LED Neon-Flex has been made by
several different manufacturers, all with
different philosophies, materials, and
construction techniques. They all seem to produce
a similar effect when first plugged in. The
product earns its wings in time-tested
applications and installations. The imitators
use cheaper components and materials, short-cut
construction techniques, and unskilled and
untrained workers to assemble it. The result is a
low quality product that does LED Technology a
disservice. These specific companies usually lend
to a product that is just not bright enough,
leaves many hot spots, and has continual section
burnouts. Brilliant Concepts manufacturer,
however, is a true innovator in this field. Large
amounts of time, energy, and money have gone into
product research and development to provide us
with a truly explosive and reliable product. This
makes Brilliant Concepts the only North American
company to offer the LED Neon Flex-Plus through a
large domestic inventory.
14Specific Differences
15(No Transcript)
16Specific Differences
17(No Transcript)
18(No Transcript)