A platform for multipurpose goniometric measurements

Presso, Matias; Rossi, Silvano R.; Posse, Carlos Manuel

doi:10.1109/i2mtc.2014.6860898

Cited by 4 publications

(1 citation statement)

References 10 publications

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“…Due to advantages such as flexibility and processing time-efficiency, Charge-Coupled Device (CCD) cameras are employed to construct video-goniophotometers in applications such as bidirectional scattering distribution function measurement [14], [15]. A multipurpose automatic angular attribute measurement platform is developed with computer aided angular motion, stimulus generator, data acquisition and visualization [16]. Though the radiation pattern is a far-field attribute of sources and the far-field measurement is the most straightforward method, near-field goniophotometries are developed to capture luminance images for all directions by imaging luminance measurement devices.…”

Section: Introductionmentioning

confidence: 99%

Radiation Pattern Measurement in the Planar Coordinate

Yang

Wang

et al. 2019

IEEE Photonics J.

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A planar measurement approach is presented to obtain the radiation pattern, by which rotation operations can be removed or reduced for a source with narrow and divergent viewing angle, respectively. TheÉtendue conservation is applied to derive the intensity distribution relationship between planar and spherical surfaces, which is further used for the radiation feature measurement on planar systems. As an indirect approach, sampling position distribution and measurement sensitivity is then discussed. Four application scenarios of the method are proposed and experimentally studied, including: 1D, 3D wireframe, pattern reconstruction for Monte Carlo ray-tracing planar data and 3D pattern estimation for luminaires. 1D radiation pattern obtained by classical goniophotometer method is employed as an evaluation standard, and experiments indicate that the results agree well between the two approaches. Therefore, the planar measurement can be applied as an alternative or supplementary method of the goniophotometer to test angle-dependent attributes of sources.

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Section: Introductionmentioning

confidence: 99%