Transcript Extrusion applications

Advanced Plastic Solutions
Microprism™
Introducing
Light & Building 2008
Patent Pending
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What is Microprism?
Advanced Plastic Solutions
Definitions:
Microprism/lenses
– Microprism/lenses are small lenses, generally
with less than a millimetre (mm) in diameter.
Pitch
– The distance between same point on repeating
patterns
TIR
0.4mm
(Pitch)
– Total Internal Reflection, The critical angle is
the angle of incidence above which the total
internal reflection occurs.
Magnified image of DKI Microprism™
Light & Building 2008
Patent Pending
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DKI Microprism™
Advanced Plastic Solutions
Radius on prismatic structures ≤ 2Micron. (Current competing capabilities is limited to radius ≥ 30-40
Micron.)
Small pitch possible due to sharp edges, which produce less chromatic aberrations (Separation of the
light relative to wavelength. E.g. Red, green and blue colour exit prism in diverging angle)
Film based, Formable to fit customer’s application.
Low total thickness of prismatic structure/film reduces internal reflection = improved light control.
Low weight (Savings on shipping cost and warehouse sq.m.)
Unlimited length
No join line due to size limitations
Competitive pricing
DKI offer Optical Design collaboration with customers
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Patent Pending
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Custom Made Tooling Options
Advanced Plastic Solutions
Your imagination sets the
limit….
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Patent Pending
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Linear Prisms
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Design Options
Linear Fresnel
Symmetric Prism
Asymmetric Prism
Linear Converging Lens
Linear Diverging Lens
TIR Prism
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Applications
Lighting/ Luminaries
–
–
–
–
Diffusers
TIR Reflectors
TIR Parabolic Reflectors
Light guides
Architectual
– Adhesive light guides for
windows, to secure daylight
access away from facades
– Decorative Lighting
Patent Pending
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Concentric Lenses
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Design Options
Refractive Fresnel
Reflective Fresnel (TIR)
Applications
Lighting/ Luminaries
–
–
–
–
Collimators
Collectors
TIR Reflectors
TIR Parabolic Reflectors
Automotive
– Headlamps
– Rear lamps
– Dashboard lighting
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Patent Pending
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Lens Arrays
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Design Options
Cone Array
Pyramid Array
Hexagonal Array
Microlens Array
Applications
Lighting/ Luminaries
–
–
–
–
Diffusers
Collimators for LED
Collimators for Light conductors
Angular control to reduce UGR
Automotive
– Rear lamps
– Dashboard lighting
Display
– LCD backlight diffusers
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Patent Pending
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Properties, DKI MicroPrism™
Advanced Plastic Solutions
Optical
Refractive Index: 1.5X
Chromatic aberration <
PMMA
Abbe number: ?
Transmission: > 92%
Physical
Dimensions:
– Width: 700mm
– Length: Infinite - ∞
– Thickness: Minimum 0.2mm.
Prism features:
– Minimum Pitch: 200 Microns
– Edge radius ≤ 2 Microns
– Custom designs on demand
Flexible
Soft touch option
Scratch resistant
Weathering resistant version
Light & Building 2008
Patent Pending
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LED applications
Advanced Plastic Solutions
Optical
Refractive Index: 1.5X
Chromatic aberration <
PMMA
Abbe number: ?
Transmission: > 92%
Physical
Dimensions:
– Width: 700mm
– Length: Infinite - ∞
– Thickness: Minimum 0.2mm.
Prism features:
– Minimum Pitch: 200 Microns
– Edge radius ≤ 2 Microns
– Custom designs on demand
Flexible
Soft touch option
Scratch resistant
Weathering resistant version
Light & Building 2008
Patent Pending
Copyright© DKI Plast as
The Details Makes The Difference!
Radius ≥ 30 micron
Large Radius = Diffuse Light
Control!
Current Products
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Radius ≤ 2 micron
Advanced Plastic Solutions
Small Radius = Precise Light Control!
DKI MicroPrism™
Patent Pending
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DKI Microprism™ makes TIR possible..
Advanced Plastic Solutions
Critical angle for Total Internal Reflection =
41.4316°
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Patent Pending
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Uniformity
improvements!
Better
uniformity
by higher
Prism
resolution
Lack of
uniformity
due to low
resolution
Visual appearance
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Advanced Plastic Solutions
Visual appearance
Patent Pending
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Chromatic Abberrations!
Advanced Plastic Solutions
DKI MicroPrism™ generate less Chromatic Aberrations = Colour separation
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Patent Pending
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