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Updated: Jul 6, 2026
06:16
Femtosecond Laser Filaments for Use in Sub-Diffraction-Limited Imaging and Remote Sensing
Published on: April 25, 2019
Flux spatial emission obtained from technical specifications for a general filament light source.
1Center for the Development of Sensors and Systems, Technical University of Catalunya, Violinista Vellsolà 37, E-08222 Terrassa, Spain. arasa@oo.upc.es
Applied Optics
|March 8, 2008
Summary
A novel, simple method models 3D light flux for filament sources using manufacturer intensity data. This validated model accurately simulates lighting applications like car taillights.
Area of Science:
- Photometry
- Optical Engineering
- Lighting Technology
Background:
- Accurate modeling of light sources is crucial for photometric simulations.
- Existing methods may lack generality or simplicity for filament light sources.
Purpose of the Study:
- To present a new, general, and simple method for evaluating 3D flux distributions of filament light sources.
- To develop and validate a model for a specific commercial filament bulb (Philips P21W).
Main Methods:
- Utilizing manufacturer-provided luminous intensity plots in three orthogonal planes.
- Applying selective smoothing, curve-fitting, and interpolation techniques.
- Developing a full model for the Philips P21W filament bulb.
Main Results:
- A validated model for the Philips P21W light source was successfully developed.
- The model accurately predicts luminous intensity and flux distributions.
- Photometric simulation of a car taillight using the model showed good agreement with measured data.
Conclusions:
- The developed method offers a general and simple approach for 3D flux evaluation of filament light sources.
- The validated model provides a reliable tool for photometric simulations in industrial applications.
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