A collection of two light emission spectra for a small infra-red emitting LED-based light source for video and photography. The lamp is advertised as "Andoer IR49S Mini IR Night Vision Light"
Format
andoer_ir49.mspct is a "source_mspct" object containing
a collection of two "source_spct" objects as members. Members are
named.
Details
andoer_ir49.mspct contains a collection of two
"source_spct" objects with spectral emission data for the lamp at
full and minimum power. Dimming setting is stepless. The lamp was
maintained at the same distance from the input optics so the two spectra
are comparable and provided expressed in calibrated spectral energy
irradiance units.
This light source has 49 LEDs in a 7 \(\times\) 7 grid. The LEDs are in through-hole packages. A built-in Lithium battery powers it.
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'.
Examples
summary(andoer_ir49.mspct)
#> Summary of source_mspct [2 x 1] object: andoer_ir49.mspct
#> # A tibble: 2 × 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 dimmed.1… sour… [311… 250. 1050. <chr> 1 1s
#> 2 dimmed.1… sour… [325… 250. 1050. <chr> 1 1s