Materials
Dr Christian Sommer
Materials
Franz-Pichler-Straße 30
8160 Weiz
Österreich
publications
- Design procedure for ultra-thin free-form micro-optical elements allowing for large DHR values and uniform irradiance distributions of ultrathin direct-lit luminaires
- Ultrathin free-form micro-optical elements for direct-lit applications with a large distance-height ratio
- Optical design of freeform micro-optical elements and their fabrication combining maskless laser direct write lithography and replication by imprinting
- Multiscale optical simulation settings: challenging applications handled with an iterative ray-tracing FDTD interface method
- Manufacturing of freeform micro-optical elements by mask-less laser direct write lithography and replication by imprinting
- The impact of the thermal conductivities of the color conversion elements of phosphor converted LEDs under different current driving schemes
- A comprehensive discussion on colour conversion element design of phosphor converted LEDs
- A simulation procedure interfacing ray-tracing and finite-difference time-domain methods for a combined simulation of diffractive and refractive optical elements
- Impact of extinction coefficient of phosphor on thermal load of color conversion elements of phosphor converted LEDs
- Multiple interfacing between classical ray-tracing and wave-optical simulation approaches: a study on applicability and accuracy
- On the thermal load of the color conversion elements of phosphor based white light emitting diodes
- 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
- Femtosecond laser processing as a versatile tool for advanced solid state lighting sources: From efficacy enhancement to colour temperature control
- The phosphor’s optical properties – chromaticity coordinate relationship of phosphor converted white LEDs
- White light quality of phosphor converted light-emitting diodes: a phosphor materials perspective of view
- On the adjustment of the color temperature of white light-emitting diodes by femtosecond laser patterning
- The impact of inhomogeneities in the phosphor distribution on the device performance of phosphor converted high power white LED light sources
- Low-Voltage Organic Thin-Film Transistors with High-k Nanocomposite Gate Dielectrics for Flexible Electronics and Optothermal Sensors
- Silicate phosphors and white LED technology: improvements and opportunities
- White LEDs and modules in chip-on-board technology for general lighting
- Improvement of color temperature constancy of phosphor converted LEDs by adaption of the thermo-optic coefficients of the color conversion materials
- The impact of light-scattering on the radiant flux of phosphor-converted high power white light-emitting diodes