134 results on '"Wenzl, Franz P."'
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2. Analysis of the local temperature distribution in color conversion elements of phosphor converted light-emitting diodes
3. On the impact of the temperature dependency of the phosphor quantum efficiency on correlated color temperature stability in phosphor converted LEDs
4. The impact of the thermal conductivities of the color conversion elements of phosphor converted LEDs under different current driving schemes
5. Integrated Sensing and Communication in the Visible Spectral Range: A Novel Closed Loop Controller
6. Backscattered Visual Light Positioning using LED Sensing in Combination with Edge Computing based Artificial Neural Network Classification
7. Femtosecond laser processing as a versatile tool for advanced solid state lighting sources: From efficacy enhancement to colour temperature control
8. White light quality of phosphor converted light-emitting diodes: A phosphor materials perspective of view
9. A comprehensive discussion on colour conversion element design of phosphor converted LEDs
10. Simulation aided design of a human wrist rotation recognition system combining IMU sensor data with Visible Light Communication
11. A novel Approach for Human-System Interaction by Visible Light Sensing based Wrist Posture and Rotation Determination
12. A detailed study on the requirements for angular homogeneity of phosphor converted high power white LED light sources
13. Random forest based classification of retroreflective foils for visible light sensing of an indoor moving object
14. Design procedure for ultra-thin free-form micro-optical elements allowing for large DHR values and uniform irradiance distributions of ultrathin direct-lit luminaires
15. 3D Visible Light Positioning of an Angle Diverse Receiver based on Track Analysis
16. Pose detection with backscattered visible light sensing utilizing a single RGB photodiode: A model based feasibility study
17. A Channel Modeling Procedure for Visible Light Sensing
18. The Requirements of Visible Light Sensing on the Receiver Design
19. Implementation of a Cost-Efficient Passive Visible Light Sensing Approach for the Determination of Surface Colors
20. Ray-tracing based channel modeling for the simulation of the performance of visible light communication in an indoor environment
21. Ultrathin free-form micro-optical elements for direct-lit applications with a large distance-height ratio
22. Organic Light Emitting Devices Fabricated from Semiconducting Nanospheres
23. The Internal Field Distribution in Light Emitting Electrochemical Cells and Light Emitting Diodes: A Comparative Study
24. Simulation of fingerprinting based Visible Light Positioning without the need of prior map generation
25. A low-complexity approach for visible light positioning and space-resolved human activity recognition
26. Spatial light modulator based laser microfabrication of volume optics inside solar modules
27. Critical review on life cycle inventories and environmental assessments of LED-lamps
28. Improvement of light extraction from high-power flip-chip light-emitting diodes by femtosecond laser direct structuring of the sapphire backside surface.
29. Long lived photoexcitation dynamics in a dendronically substituted poly(fluorene).
30. A spatiotemporal framework for human indoor activity monitoring
31. The efficiency of light-emitting electrochemical cells
32. On the determination of the temperature distribution within the color conversion elements of phosphor converted LEDs
33. Thin direct-lit application for general lighting realized by freeform micro-optical elements
34. A study on Aerosol jet printing technology in LED module manufacturing
35. Smart freeform optics solution for an extremely thin direct-lit application
36. Multiscale optical simulation settings: challenging applications handled with an iterative ray-tracing FDTD interface method
37. Combining ray-tracing and FDTD to enable the simulation of complex optical devices in an iterative simulation process with reduced simulation effort
38. Chromaticity coordinate maintenance of phosphor converted LEDs by a self-compensation approach
39. The impact of individual materials parameters on color temperature reproducibility among phosphor converted LED sources
40. Foil based optical elements for beam shaping and color homogenization of phosphor converted white LED sources
41. Advanced Thermal Management Solutions on PCBs for High Power Applications
42. Multiple interfacing between classical ray-tracing and wave-optical simulation approaches: a study on applicability and accuracy
43. Thermal and optical aspects of glob-top design for phosphor converted white LED light sources
44. The impact of the color conversion element configuration on its thermal response in phosphor converted LEDs
45. On the Thermal Load of the Color-Conversion Elements in Phosphor-Based White Light-Emitting Diodes
46. Improvement of Color Temperature Constancy of Phosphor Converted LEDs by Adaption of the Thermo-Optic Coefficients of the Color Conversion Materials
47. The impact of the non-linearity of the radiant flux on the thermal load of the color conversion elements in phosphor converted LEDs under different current driving schemes
48. Color temperature constancy of phosphor converted LED modules: a combined thermal and optical simulation study on the materials requirements
49. The impact of the silicone encapsulation layers on the white light quality of phosphor converted LEDs
50. A simulation procedure for light-matter interaction at different length scales
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