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Spectra for a Sunwayfoto FL96 LED video light

Source: R/sunwayfot-fl96-mspct.r
sunwayfoto_fl96.mspct.Rd

A collection of lamp emission spectra for a Sunwayfoto LED fill light type FL96.

Usage

sunwayfoto_fl96.mspct

Format

sunwayfoto_fl96.mspct is a "source_mspct" object containing a collection of 6 "source_spct" objects as members. Members are named.

Details

sunwayfoto_fl96.mspct contains a collection of "source_spct" objects with spectral emission data for different dimming and colour temperature settings. The lamp was maintained at the same distance from the input optics of the spectrometer. Thus, the different spectra are comparable and provided expressed in calibrated spectral energy irradiance units.

This light source has 96 white LEDs half emitting warm white light and half emitting cool white light. The LEDs are in SMD packages and are interspersed. A built-in Lithium battery powers it. The mix of warm and cool light can be adjusted as well as the overall power output.

The variables in each member spectrum are as follows:

  • w.length (nm)

  • s.e.irrad (\(\mathrm{W\,m^{-2}\,nm^{-1}}\))

Note

Instrument used: Ocean Optics Maya2000 Pro single-monochromator array spectroradiometer with a Bentham cosine corrected input optics. A complex set of corrections and calibration procedure used. The source_spct objects have attributes with additional information on the measurement and data processing. Measurements done by Pedro J. Aphalo. Data acquired and processed using R packages 'ooacquire' and 'photobiology'.

References

Lamp manufacturer: https://sunwayfoto.com/.

Aphalo, Pedro J. (2022) Small fill/video LED lights revisited: A new comparison. https://www.photo-spectrum.info/pages/illumination/led-fill-lights-2.html.

Examples


summary(sunwayfoto_fl96.mspct)
#> Summary of source_mspct [7 x 1] object: sunwayfoto_fl96.mspct
#> # A tibble: 7 × 8
#>   spct.idx  class dim   w.length.min w.length.max colnames multiple.wl time.unit
#>   <chr>     <chr> <chr>        <dbl>        <dbl> <list>         <dbl> <Duratio>
#> 1 3000K.10… sour… [279…         251.         899. <chr>              1 1s       
#> 2 4000K.10… sour… [334…         251.         899. <chr>              1 1s       
#> 3 5500K.10… sour… [321…         251.         899. <chr>              1 1s       
#> 4 4000K.50… sour… [345…         251.         899. <chr>              1 1s       
#> 5 4000K.25… sour… [419…         251.         899. <chr>              1 1s       
#> 6 4000K.12… sour… [496…         251.         899. <chr>              1 1s       
#> 7 4000K.5pc sour… [532…         251.         899. <chr>              1 1s