1. Advanced Plastic Solutions Light & Building 2008 Patent Pending Copyright© DKI Plast as Microprism™ Introducing

2. Advanced Plastic Solutions Light & Building 2008 Patent Pending Copyright© DKI Plast as What is Microprism? Definitions: (Pitch) 0.4mm Magnified image of DKI Microprism™ 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 –Total Internal Reflection, The critical angle is the angle of incidence above which the total internal reflection occurs.

3. Advanced Plastic Solutions Light & Building 2008 Patent Pending Copyright© DKI Plast as DKI Microprism™ 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

4. Advanced Plastic Solutions Light & Building 2008 Patent Pending Copyright© DKI Plast as Custom Made Tooling Options Your imagination sets the limit….

5. Advanced Plastic Solutions Light & Building 2008 Patent Pending Copyright© DKI Plast as Linear Prisms Linear Fresnel Symmetric Prism Asymmetric Prism Linear Converging Lens Linear Diverging Lens TIR Prism 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 Design Options Applications

6. Advanced Plastic Solutions Light & Building 2008 Patent Pending Copyright© DKI Plast as Concentric Lenses Refractive Fresnel Reflective Fresnel (TIR) Lighting/ Luminaries –Collimators –Collectors –TIR Reflectors –TIR Parabolic Reflectors Automotive –Headlamps –Rear lamps –Dashboard lighting Design Options Applications

7. Advanced Plastic Solutions Light & Building 2008 Patent Pending Copyright© DKI Plast as Lens Arrays Cone Array Pyramid Array Hexagonal Array Microlens Array Lighting/ Luminaries –Diffusers –Collimators for LED –Collimators for Light conductors –Angular control to reduce UGR Automotive –Rear lamps –Dashboard lighting Display –LCD backlight diffusers Design Options Applications

8. Advanced Plastic Solutions Light & Building 2008 Patent Pending Copyright© DKI Plast as Properties, DKI MicroPrism™ Refractive Index: 1.5X Chromatic aberration < PMMA Abbe number: ? Transmission: > 92% 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 OpticalPhysical

9. Advanced Plastic Solutions Light & Building 2008 Patent Pending Copyright© DKI Plast as LED applications Refractive Index: 1.5X Chromatic aberration < PMMA Abbe number: ? Transmission: > 92% 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 OpticalPhysical

10. Advanced Plastic Solutions Light & Building 2008 Patent Pending Copyright© DKI Plast as Current Products DKI MicroPrism™ Radius ≤ 2 micron Radius ≥ 30 micron The Details Makes The Difference! Light Direction from Source Large Radius = Diffuse Light Control! Small Radius = Precise Light Control!

11. Advanced Plastic Solutions Light & Building 2008 Patent Pending Copyright© DKI Plast as DKI Microprism™ makes TIR possible.. Critical angle for Total Internal Reflection = 41.4316°

12. Advanced Plastic Solutions Light & Building 2008 Patent Pending Copyright© DKI Plast as Uniformity improvements! Better uniformity by higher Prism resolution Visual appearance Lack of uniformity due to low resolution Visual appearance

13. Advanced Plastic Solutions Light & Building 2008 Patent Pending Copyright© DKI Plast as Chromatic Abberrations! DKI MicroPrism™ generate less Chromatic Aberrations = Colour separation