NEWS

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photobiologyLEDs 0.6.0

• Replace data for most LEDs with freshly measured data extending farther into the infrared region: from 250 nm to 1050 nm, instead of from 250 nm to 900 nm maintaing the same member names, except in the case of three misnamed ones.
• Add data for several LEDs, both newly acquired and "historical" ones, all newly measured.

photobiologyLEDs 0.5.3 (2025-09-27)

This update tracks changes up to 'photobiology' 0.14.0, the main changes being in the metadata stored in R attributes and the decreased agressiveness of the wavelength thinning applied to reduce the size of objects. In addition, as the most recent calibration of our spectroradiometer extends farther into the NIR than earlier calibrations, many spectra for many LEDs have been measured anew, to take avantage of it. Thus, although naming conventions remain the same the data for many LEDs are not exactly the same as in earlier versions.

• Update documentation for better CRAN compliance.
• Move spectra for multichannel LED arrays from leds.mspct to a new object led_arrays.mspct.
• Add data for a second custom-assembled 120W, 12-channel LED array.
• Add data for several "3W" 3535 LEDs.
• Replace data for some LEDs with freshly measured data extending farther into the infrared region: from 250 nm to 1050 nm, instead of from 250 nm to 900 nm.
• Build all data objects with 'photobiology' (== 0.14.0), using less aggressive wavelength thinning: size of objects has increased and spectral features are better preserved.

photobiologyLEDs 0.5.2 (2023-11-01)

• Rebuild all data objects with 'photobiology' (== 0.11.0).
• Add missing metadata to spectra when possible.
• Add COB_dimming.tb with summaries from COB_dimming.mspct.
• Add data for a custom-assembled 120W, 12-channel LED array.

photobiologyLEDs 0.5.1 (2022-08-15)

• Add data for one LED.
• Rebuild documentation for HTML5 compliance.

photobiologyLEDs 0.5.0 (2022-05-14)

This is a major and code-breaking update. Naming conventions have changed and many new spectra have been added. Previously included spectra have in most cases been recomputed and may slightly differ from earlier versions of the same data. In part this was done to reduce the size of the data objects, making it possible to include more spectra while keeping the size of the package reasonable.

• Revise for 'ggspectra' (>= 0.3.1).
• Rebuild all data objects with 'photobiology' (== 0.10.10) taking care that all individual spectra in leds.mspct are normalized (an exception are multichannel LEDs).
• Apply function photobiology::thin_wl() to all spectra to reduce their stored size.
• Add data for new LED types and update the metadata of most of those carried over from earlier versions.
• Add COB_dimming.mspct with data for constant current dimming.
• Add COB_reflectors.mspct with data for three different reflectors.
• Add new lists of LEDs by intended use.
• CODE BREAKING: change naming convention for members of the collection of spectra. Now names consist of "brand" and type, and use underscores.
• CODE BREAKING: lists of LEDs by colour are now based on the wavelength at the peak of emission. We use ISO-standard wavelength boundaries for colours of visible radiation, except for purple < 400 nm. For ultraviolet we follow ISO. All broad-spectrum LEDs are listed as white.
• Rewrite/revise all scripts used to prepare the spectral data.
• Migrate Git repository from Bitbucket to GitHub.

photobiologyLEDs 0.4.3-1 (2018-01-14)

• Fix dependency on a non-.0 version of R.

photobiologyLEDs 0.4.3 (2017-12-18)

• Add data for additional LED types, and rebuild all data objects.
• Fix minor bug.
• Revise User Guide and remove the Catalogue of data vignette.

photobiologyLEDs 0.4.2 (2016-10-23)

• Store spectral data in a single collection of spectra.
• Provide vectors of names to extract non-orthogonal subsets.
• At the moment by color and by manufacturer.
• Add spectral data for additional LEDs.
• Convert vignette to Rmarkdown.
• Add User Guide.

photobiologyLEDs 0.4.1

• Not submitted to CRAN and very short lived. (It was a bad start into a major reorganization of the data.)

photobiologyLEDs 0.3.2

• Trimmed Norlux data to 250..900 nm, and added source_mspct objects for multi-channel arrays.

• Rebuild data and the package with photobiology 0.8.5.

photobiologyLEDs 0.3.1

• Rebuild all data and the package with photobiology 0.8.0.

photobiologyLEDs 0.3.0

• Added data for LUMITRONIX LED array.
• Rebuild all data and the package with photobiology 0.6.0.

photobiologyLEDs 0.2.2

• Added data for UVMAX LEDs.

photobiologyLEDs 0.2.1

• Rebuilt data objects with photobiology 0.5.7 and updated the vignettes to use photobiologygg 0.2.5 functions.

photobiologyLEDs 0.2.0

• Updated required version of photobiology package to 0.5.1, which required a small edit to the User Guide.

photobiologyLEDs 0.1.3

• Updated required version of photobiology package.

photobiologyLEDs 0.1.2

• Data updated by reprocessing raw measurements using current version of MayaCalc.
• Rebuilt spectral objects with current version of photobiology package.
• Revised the vignette to use the new plot.source.spct() function.
• Added data for Tao Yuan UVB LED.

photobiologyLEDs 0.1.1

• Data updated by reprocessing raw measurements using current version of MayaCalc.
• Added a vignette.

photobiologyLEDs 0.1.0

• First version.