Bidirectional reflectance definition
Public support
Provider
Ministry of Education, Youth and Sports
Programme
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Call for proposals
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Main participants
Český metrologický institut
Contest type
M2 - International cooperation
Contract ID
MSMT-19821/2017-4/12
Alternative language
Project name in Czech
Bidirectional reflectance definition
Annotation in Czech
The scientific and technical objectives of this project are to: 1. Propose standard parameters for the measurement of the BRDF of particular materials and optical surfaces in the visible range in order to improve the traceability to the SI between users and NMIs, and therefore to allow for better agreement between commercial goniospectrophotometers. The focus will be on i) settings of solid angles, ii) illuminated and measured areas, and iii) convergence of light beams. In addition, to provide guidance on how to sample the BRDF space efficiently and to propose a minimum number of measurement geometries according to the appearance properties of the specimen. 2. Propose arrangements for data handling and processing for BRDF measurements when a large amount of data is obtained. 3. Propose a new method for gloss measurement that correlates with visual perception. The contribution will be based on i) reflectance measurements, ii) visual evaluations and iii) definition of a standard gloss observer. 4. Propose a consensual definition of sparkle and graininess measurands and to define procedures for their measurement in correlation with visual scales for sparkle and graininess. 5. Facilitate the uptake of the technology and guidance developed in the project by the measurement supply chain e.g. instrument manufacturers and end-users e.g. automotive, cosmetics, pigments, packaging and 3D printing industries. In addition, to contribute to the standards development work of international standardisation bodies e.g. CIE. Dissemination of project results will take place as early as possible to establish a standardised approach.
Scientific branches
R&D category
AP - Applied research
CEP classification - main branch
BH - Optics, masers and lasers
CEP - secondary branch
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CEP - another secondary branch
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OECD FORD - equivalent branches <br>(according to the <a href="http://www.vyzkum.cz/storage/att/E6EF7938F0E854BAE520AC119FB22E8D/Prevodnik_oboru_Frascati.pdf">converter</a>)
10306 - Optics (including laser optics and quantum optics)
Completed project evaluation
Provider evaluation
U - Uspěl podle zadání (s publikovanými či patentovanými výsledky atd.)
Project results evaluation
Following the condition that the candidate of financial contribution was evaluated and afterwards selected by international provider in accordance with the rules of the program the Ministry of Education, Youth ans Sports does not realize the evaluation of project results. The project is evaluated only after its approval by an international provider.
Solution timeline
Realization period - beginning
May 1, 2017
Realization period - end
Apr 30, 2020
Project status
U - Finished project
Latest support payment
Feb 26, 2020
Data delivery to CEP
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data delivery code
CEP21-MSM-8B-U/01:1
Data delivery date
Jun 16, 2021
Finance
Total approved costs
2,789 thou. CZK
Public financial support
1,462 thou. CZK
Other public sources
0 thou. CZK
Non public and foreign sources
1,327 thou. CZK