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Luminaire Design from Avnet
Tailoring Lighting Outputs
Differentiate Your Products
and
Drive Profits
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Talk Outline
• Avnet Illumineers - Solid State Lighting Experts
• Illumineer Optical Design for Solid State Lighting
– Traditional lighting solutions based on imaging optics
– Non-Imaging Design System used by Illumineers for design
• Turning Your Lighting Design Into Engineering Reality
– Avnet linecard one of the best in distribution
– Designs / ideas transferred to your contract manufacturer
– Our CM partners are the best!
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Illumineers Bring Expertise to Lighting Design
Optical
Design
Thermal
Remediation
Driver
Specification
Illumineer
Illumineer = Combined Expertise!
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Avnet Centralized Lighting Lab
Performance data to gain confidence before
certification testing!
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But Wait….There’s More
Illumineer
Business
Development
Responsible for developing
solid state lighting in regions
of responsibility
Education
Providing world class
instruction to our
customers through visits
as well as seminars
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Fiber Optic Sensors
Peter Dimitrov-Kuhl Tri-State Illumineer
• BA Physics – Rutgers University
• ME Engineering Optics – Stevens Institute of Technology
• Over 25 years of optical design, proto-typing and project
management experience
Interferometric
Systems
Imaging Lens Design
Beam Expander
Deep insights
in to how to
optimize optical
performance
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…...All Things Lighting
LED Optics
and Systems
Faceted Reflector
Illumination Systems
Expertise in
Optical Simulation
for Lighting
Design
Performance for
Metal Halide and
Halogen
Applications
Efficient Fluorescent
Lighting
Photometric evaluation in AGi32
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Confident in Your Lighting Design?
Are design assumptions
grounded in reality?
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Confident in Your Lighting Design?
Are my design assumptions
grounded in reality?
Is the suppliers’ information
consistent?
“Don’t worry – it will be fine”!
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Confident in Your Lighting Design?
Are my design assumptions
grounded in reality?
Is my suppliers’ information
consistent?
“Don’t worry – it will be fine”!
How robust is my design to
manufacturing tolerances?
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Illumineers Provide the Difference!
• Pre-sales lighting design support for our customers
– Lab caliber specialty
– Quickly prototype/evaluate luminaires in design software
Generate IES files for analysis in lighting packages
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Imaging Lens Design
Primary Difference - Design for Lighting
The “parabolic” solutions used in lighting
today were originally designed to form images
Galileo and his refracting telescope Newton and his reflecting telescope
Camera lenses
form images
for pictures
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Imaging Design Curves Not Best for Lighting
State of the
Art Lighting!
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Illumineers Use NIDS for Lighting Design
• NIDS = Non – Imaging Design System
• Very fast and versatile
• Provides superior design results for lighting
applications when used with real world data!
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NIDS in the Real World – LED Rayfiles
Gonio-Luminance
measurements
for accurate ray data files
LED mounted on
center post
Camera takes ~ 2,000
measurements over whole
hemisphere
Luminance measurements of LED
sources produces rayfile data for
accurate simulation work
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NIDS Example - Parabolic Forms Dice Image
13.8 mm
26.5 mm
OTS Spot TIR Optic
Single Die Emitter
Cross-
hatching
caused by
“bad”
imaging
Illuminance at 1 m
Customer happy
with brightness but
dissatisfied with
output spot
Measured
parabolic
curve
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13.8 mm13.8 mm
26.5 mm 26.5 mm
Systems Built Around Original Spot Lens
Customer wanted a
better spot solution but
“don’t change the lens
dimensions”
OTS Spot TIR Optic NIDS Spot TIR Optic
Single Die Emitter
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NIDS Spot Design is Perfectly Uniform
13.8 mm13.8 mm
26.5 mm 26.5 mm
OTS Spot TIR Optic NIDS Spot TIR Optic
Illuminance at 1 mIlluminance at 1 m
No dice
imaging!
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NIDS Output is 2.7X Brighter Than OTS Lens!
NIDS design results in brighter output spot!
OTS
FWHM = 11.3 deg
NIDS
FWHM = 6.6 deg
NIDS output
is 2.7 X
brighter than
OTS Lens
Lum Int Comparison Normalized to OTS Lens Output
Hotspot
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Critical Brightness Advantage
• Illumineers make your products brighter
– Beat out traditional designs!
– Spot luminaire can be almost 3x brighter!
– No dice imaging
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NIDS Output – a Greener Alternative!
NIDS design can provide same brightness for less
power!
NIDS output
is 2.7 X
brighter than
OTS Lens
Lum Int Comparison Normalized to OTS Lens Output
Hotspot
Hitting original photometric
spec requires 63% less drive
power
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If it’s Brighter it can be Made Greener!
• Illumineers make your products brighter
– Beat out traditional designs!
– Spot luminaire can be almost 3x brighter!
– No dice imaging
• Make it greener
– Reduce input power to achieve same CBCP
– Batteries last longer
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NIDS Output – Brighter and Greener!
NIDS design results in product options!
NIDS output
is 2.7 X
brighter than
OTS Lens
Lum Int Comparison Normalized to OTS Lens Output
Hotspot
Operate in intermediate
range to be greener
and brighter!
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Have Your Cake and Eat it Too!
• Illumineers make your products brighter
– Beat out traditional designs!
– Spot luminaire can be almost 3x brighter!
– No dice imaging
• Make it greener
– Reduce input power to achieve same CBCP
– Batteries last longer
• Make it brighter and greener
– Best of both worlds
– Design for both to differentiate your product!
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NIDS Offers Design Versatility and Value!
How did you get those
lights so bright!?
I called those
Avnet guys
Illumineers satisfy the
toughest customers!
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Cove Lighting Example – Need More Physics
Mid or Low Power Linear Array of
LEDs Inserted Into Extrusion
Reflected and Transmitted Scatter
will be Significant
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• Real world materials can be
characterized
– Reflection = BRDF
– Transmission = BTDF
• These functions can be loaded
into optical design packages
• NIDs designs based on these
files yield highly accurate
results!
Reflection and Diffusion in the Real World
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The extruded reflector pictured above was optimized to
“collimate” vertical light output
Cove Lighting Example – Reflector Extrusion
Use reflector to make
vertical rays “tighter”
Horizontal
Vertical
Angled view shows LEDs at base of extruded
reflector 1” deep
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Vertical
Horizontal
Angled view shows LED array at base of extruded reflector 1”
deep
NIDS Extrusion - 6 X 110 Deg Output!
• 110 deg beam angle for the
horizontal output is essentially
Lambertian
• 6 deg beam angle for vertical
distribution is extremely tight
• Used by itself or as the base
unit for use with diffusers to
produce a series of cove lights
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20 Deg Diffuser (BTDF) Widens Vertical O/P
False color LI of 20 deg Surface Diffuser
Over Reflector
False color chart shows vertically
compressed but brighter output
The output LI distribution changes from a
severe 6 X 110 degs to a smoother 40 X 84 deg
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The Main Takeaway - A Brighter Design!
Caution: Avnet lighting
design in progress!
More power
Where you want it!
Would your customer’s want brighter outputs?
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A Greener Design!
Less power
for the same
output?
Or optimized energy
efficiency?
Lower carbon footprint
Green products
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Or the Best of Both Worlds!
Find the sweet spot
for your products!
Take advantage of the designs Avnet offers!
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Manufacturing Support
• Results can be moved directly to a CM
– Or use our preferred partners!
• Linecard sourcing quickly arranged
• Avnet excels at supply chain advantages
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Thank you for your attention!
Peter Dimitrov-Kuhl
Avnet Illumineer – Tri-State
Peter.Dimitrov-Kuhl@Avnet.com
Phone: 908-635-7125