- Eleifend mi in nulla posuere sollicitudin - aliquam ultrices sagittis orci. Faucibus - pulvinar elementum integer enim. Sem nulla - pharetra diam sit amet nisl suscipit. - Rutrum tellus pellentesque eu tincidunt. - Lectus urna duis convallis convallis - tellus. Urna molestie at elementum eu - facilisis sed odio morbi quis -
-- Feugiat pretium nibh ipsum consequat. - Tempus iaculis urna id volutpat lacus - laoreet non curabitur gravida. Venenatis - lectus magna fringilla urna porttitor - rhoncus dolor purus non. + We provide a documented wizard for + uploading your files to the platform. +
++ Spectra and calculations within the luox + platform can be shared using an URL that + directly encodes the uploaded + spectrum/spectra using Michael Herf's{" "} + + spdurl + {" "} + package. The sharing URL will open a + view-only version of the platform. To copy + the sharing URL, scroll down to the bottom + of the page. Before sharing the URL, + please double-check that it opens + spectrum/spectra as expected. +
+
+ We offer the option to request a digital
+ object identifier (DOI) linked to the
+ sharing URL. This DOI has to be requested
+ manually and the request will be vetted
+ manually. To request a DOI, please
+ complete this{" "}
+
+ form
+
+ . The DOI will be generated by generating
+ an entry for the sharing URL in the{" "}
+
+ MPG.PuRE
+ {" "}
+ and author information will be included in
+ the record. All luox sharing URLs added to
+ ORA will receive a unique luox number of
+ the format (YYYY-####;{" "}
+ Y=year). A running list of
+ luox sharing URLs with associated DOIs is
+ on this page, under{" "}
+
+ Depositions
+
+ . Please note that deposition of the
+ sharing URL into MPG.PuRE is permanent.
- Feugiat pretium nibh ipsum consequat. - Tempus iaculis urna id volutpat lacus - laoreet non curabitur gravida. Venenatis - lectus magna fringilla urna porttitor - rhoncus dolor purus non. + The following is a list of depositions + with assigned DOIs, up-to-date as of 1 + February 2022.
+| Deposition ID | +Date | +DOI | +Depositor | +
|---|---|---|---|
| luox-2021-0001 | +23 January 2021 | +TBD | ++ Manuel Spitschan, University of + Oxford + | +
| luox-2021-0002 | +18 February 2021 | ++ + 10.5287/bodleian:AeZAXN1km + + | ++ Jan-Frieder Harmsen, Maastricht + University + | +
| luox-2021-0003 | +18 February 2021 | ++ + 10.5287/bodleian:dp7QEqYAm + + | ++ Jan-Frieder Harmsen, Maastricht + University + | +
| luox-2021-0004 | +18 February 2021 | ++ + 10.5287/bodleian:0ogQP5bb5 + + | ++ Jamie Zeitzer, Renske Lok & + Daniel Joyce, Stanford + University + | +
| luox-2022-0001 | +01 February 2022 | ++ + 10.17617/2.3364820 + + | +Boris Hanák, Spectrasol | +
| luox-2022-0002 | +01 February 2022 | ++ + 10.17617/2.3364831 + + | ++ Jamie Zeitzer, Stanford + University + | +
+ All default calculations performed here + follow guidance from the{" "} + + International Commission on Illumination + (CIE) + + . +
++ Indices that are undefined for a given + test spectrum return a value of N/A. For + example, colour rendering and colour + fidelity are defined only when |D + uv| {"<"} 0.05. +
+- Feugiat pretium nibh ipsum consequat. - Tempus iaculis urna id volutpat lacus - laoreet non curabitur gravida. Venenatis - lectus magna fringilla urna porttitor - rhoncus dolor purus non. + All calculations are computed with + double-precision floating point numbers + using JavaScript. In the browser, the + results are displayed up to four decimals + for all quantities (including those in + Advanced mode). When downloading + calculations, the precision will be higher + than displayed in the browser. The + possible ranges of numbers which can be + represented under the double precision + will then be limited to approximately 16 + decimal places of precision. The + calculations in _luox_ follow the + published documents strictly, including + any guidance concerning rounding at + intermediate stages. This can introduce + what appear to be rounding errors when + compared to other calculation tools. In + order to mitigate this issue and to + maximise transparency, _luox_{" "} + provides an option to display all + intermediate values in the calculation, in + which can be useful to track down errors. +
+| Name | +Source document | ++ Wavelength spacing/range [nm] + | +
|---|---|---|
| CIE 1931 xy (2°) | ++ + ISO/CIE 11664-1:2019 + + , Table 1 (p. 10-21) + | +1 / 360-830 | +
| CIE 1964 xy (10°) | ++ + ISO/CIE 11664-1:2019 + + , Table 2 (p. 22-32) + | +1 / 360-830 | +
| + CIE S 026/E:2018 a-opic action + spectra + | ++ + CIE S 026/E:2018 + + , Table 2 (p. 12-21) + | +1 / 380-780 | +
+ Note: The CIE S 026/E:2018 a-opic action + spectra are available in tabulated form + from the{" "} + + CIE website + {" "} + ( + + Internet Wayback Machine + + ). +
+| Name | +Source document | ++ Wavelength spacing/range [nm] + | +
|---|---|---|
| Standard illuminant A | ++ + ISO 11664-2:2007/CIE S + 014-2:2006 + + , Table 1 (p. 7-12) + | +1 / 300-830 | +
| Standard illuminant D65 | ++ + ISO 11664-2:2007/CIE S + 014-2:2006 + + , Table 1 (p. 7-12) + | +1 / 300-830 | +
| Illuminant C | ++ + CIE 015:2018 + + , Table 5 (p. 51-53) + | +5 / 300-780 | +
| Illuminant D50 | ++ + ISO/CIE 11664-2:2022(E) + + , Table A.1 (p. 8-14) + | +1 / 300-830 | +
| Illuminant D75 | ++ + CIE 015:2018 + + , Table 5 (p. 51-53) + | +5 / 300-780 | +
| Illuminants F1-F12 | ++ + CIE 015:2018 + + , Table 10.1 (p. 59-60) + | +5 / 380-780 | +
| Illuminants FL3.1-FL3.8 | ++ + CIE 015:2018 + + , Table 10.2 (p. 61-62) + | +5 / 380-780 | +
| Illuminants FL3.9-FL3.15 | ++ + CIE 015:2018 + + , Table 10.3 (p. 63-64) + | +5 / 380-780 | +
| Illuminants HP1-HP5 | ++ + CIE 015:2018 + + , Table 11 (p. 65-66) + | +5 / 380-780 | +
| Illuminants LED-B1-LED-B5 | ++ + CIE 015:2018 + + , Table 12.1 (p. 67-68) + | +5 / 380-780 | +
| + Illuminants LED-BH1, LED-RGB1, + LED-V1, LED-V2 + | ++ + CIE 015:2018 + + , Table 12.2 (p. 69-70) + | +5 / 380-780 | +
+
+ While calculation procedures are + structurally well-defined by the CIE, + there are a few ambiguities that may arise + when implementing it. This includes the + choice of specific and exchangeable + algorithms (e.g. for the calculation of + CCT), and the decimal points of specific + constants. The specific choices are + described here: +
+| Aspect | +Quantity | ++ Method or quantity used in luox + | +Description | +
|---|---|---|---|
| + Constant for absolute + (il)luminance conversion + | ++ Illuminance [lx] and Luminance + [cd/m2] + | +683.0015478 lm/W | ++ 683 lm/W acceptable "for + all practical applications" + according to{" "} + + ISO 23539:2005/CIE S 010:2004 + + , 683.0015478 lm/W exact value + used in the{" "} + + CIE S 026 toolbox + + ; usually rounded up to 683.002 + lm/W + | +
| Rounding | ++ CIE colour rendering index R + a + | ++ Strict rounding after + calculating subindices + | ++ Following{" "} + + CIE 13.3-1995 + + , luox rounds to the nearest + whole number after calculating + the subindex for each of the + special colour rendering + indices, and then averages them + to form the General Colour + Rendering Index + | +
+ The source code is available on GitHub ( + + https://github.com/luox-app/luox/ + + ) under an MIT License. +
++ The default output of luox (CIE quantities + and indices) has been validated by the + CIE. The validation report is available{" "} + + here + + . +
+According to the CIE:
++ This software incorporates methods, + formulae, spectral function calculations + and spectra from the International + Commission on Illumination (CIE). The CIE + endorses this software having made a + black-box evaluation of the software as of + Feb. 11, 2021, finding that the software + performs satisfactorily to calculate + quantities and indices derived from CIE + publications. This software is not a + replacement for the CIE publications and + works from which it is derived. The user + is advised to consult the original + publications and works for proper + understanding of and calculation of the + result of this software. +
++ This software has been validated to load + SPDX files according to TM-27-20. +
++ This software offers optional calculation + of indices from IES TM-30-20. These + optional calculations have not been + validated. +
++ The CIE has released a toolbox (DOI:{" "} + + 10.25039/S026.2018.TB + + ) and user guide (DOI:{" "} + + 10.25039/S026.2018.UG + + ) or calculations of quantities specified + in{" "} + + CIE S 026/E:2018: CIE System for + Metrology of Optical Radiation for + ipRGC-Influenced Responses to Light + {" "} + (DOI:{" "} + + 10.25039/S026.2018 + + ). The Excel spreadsheet-based toolbox is + freely available and is supplementary to + the luox platform. +
++ An Excel spreadsheet tool for calculating + the CIE Colour Fidelity Index (Rf) is + available as a companion to{" "} + + {" "} + CIE 224:2017 CIE 2017 Colour Fidelity + Index for accurate scientific use + + .
Test
++ The following individuals tested and provided feedback + on an early version of the platform: Paul + O'Mahoney, Tos Berendschot, Isabel Schöllhorn, + Christine Blume, Katharina Wulff, Kinjiro Amano, Tony + Esposito, Minchen Tommy Wei, Suzanne Ftouni, Paula M. + Esquivias, Gayline Manalang Jr., Daniel Garside, + Joachim Stormly Hansen, and Hao Xie. +
Test
++ These terms tell you the rules for using our website{" "} + https://luox.app/ + (our site). +
++ Our site operated by the joint research group + Chronobiology & Health at the Technical University of + Munich and Translational Sensory and Circadian + Neuroscience at the Max Planck Institute for + Biological Cybernetics (Prof. Dr. Manuel Spitschan). + To contact us, please email{" "} + + manuel.spitschan@tum.de + + . +
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