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Trace Pro Evaluation

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Very basic capabilities of TracePro

Very basic capabilities of TracePro

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  • 1. TracePro Evaluation “TracePro, renowned in theLambda Research Corporation specialise in software scientific community for thetools for optics and illumination designers – TracePro accuracy of its simulations, offers lighting designers theis one of their offerings confidence that the performance and aesthetics ofIs there a use for TracePro within F&P? finished products will concur with the simulated design without costly prototype iterations.”When a reflector is not quite what it should be 16/11/2010 1
  • 2. Potential usage within PD OB90 simulation of Lighting and optical design single cavity light areas for appliances – Light sources – Light pipes – Reflectors – Diffusers – Materials Specifics • Cavity lighting – Oven/Fridge/Drawer • Optimisation of load illumination • Optimisation of light source requirements • Minimization of shadows and silhouettes • Elimination of glare Mixing of RGB LED • Elimination of costly light sources prototyping iterations White result starting • User interfaces to appear – limited – Bezels/masks/point illumination in this simulation by • Optimisation of hot numbers of rays spots, colour mixing, spill, shielding, source traced selection 16/11/2010 2
  • 3. Touch switch bezel • System modelling – Direct import of ProE bezel model – Applied material properties to bezel (Polycarb) – Applied diffusion properties to exit surfaces Auxiliary LED source – rays Primary LED source – rays – Insert a targetTarget surfaces in purpleTwo LED sources for comparison simulated that reach target simulated that reach target absorption surface for surfaces 4395 surfaces 664 exit ray capture – Model cap button insert – Model sheet surface surround for bezel – Model LED source • Wavelengths • Exit surfaces • Rays to simulateActual Bezel in operation – notice Projected image on external Projected image on externalthe hot-spots and dark ring surface. Pipe efficiency with Aux surface. Pipe efficiency with LED source ~25% Primary LED source ~3% 16/11/2010 3
  • 4. Tack switch bezel • System modelling involves very similar process • Once the system is modelled variations to the bezel model can be rapidly analyzed until an optimum solution is realised • Each halo illustrated is a projection from the exit surfaces of the bezel to a target screen 1mm away 16/11/2010 4
  • 5. GOEP light pipe • OB90 function and temperature control lighting bezel model • LED models available within the TracePro environment • Pipe simulated – Efficiency ~60% • Illustrations represent only 25k simulated rays – Shows a uniform distribution about the target bezel surface 16/11/2010 5
  • 6. Orientation of a bulb • Does the orientation of a halogen bulb effect the illumination efficiency of a target? • Dummy target modelled as a perfect absorber to avoid unwanted reflection • Housing unit modelled with ANOFOL material surface – close approximation to aluminised steel • Change in bulb orientation improves efficiency by 73% – Capable of further increased efficiency by changing perpendicular alignment of filaments 16/11/2010 6
  • 7. Reflector material • TracePro contains a library of surface materials that can be 38% 44% 56% 83% applied • Simple system created to demonstrate affect on efficiency with various materials – The model is based on a possible configuration of a lighting unit for an oven cavity – Only one bulb position simulated – Efficiency measured by rays captured at a target surface as a percentage of total rays simulated 16/11/2010 7
  • 8. OB2 cavity lighting • Goal – Locate the optimum bulb locations to effectively illuminate a central cavity load as viewed from an external screen – Simulations only capture rays that are direct reflections from the cavity load – Internal walls of cavityCurrent acceptable position as in OB90 Bulb position 1 to 4 gives 93% efficiency improvement are modelled as perfect absorbers – From previous known cavity studies 9 target bulb positions have been simulated – Positions 3, 4, 5, and 6 give a worst case efficiency improvement of 35% 16/11/2010 8
  • 9. OB2 cavity lighting Bulb and housing Trays have been • Goal vertical positioning modelled as perfect – Using previous results: selected to ensure absorbers • Bulb orientation acceptable Loads are reflectors • Reflector material illumination of worst Cavity walls • Bulb locations case dual loads absorbers – Meet lighting CI’s including within cavity Captured rays are illumination of multiple cavity only those reflected loads from loads – System modelling completed as in all previous exercises – To achieve the optimum light housing position along the Z axis the loads have been moved in successive simulations to determine the point of maximum efficiency – Assuming the cavity load would be central on the Z and X planes the lighting units optimal location is 40mm forward of centre – An OB90 style lighting system would provide zero illumination of the lower shelf load in a dual load configuration 16/11/2010 9