A collection of ultraviolet-induced visible and near infrared fluorescence spectra for optical filters.
Details
The "source_mspct" object named filters_UVIVIF.mspct contains a collection of
"source_spct" objects with spectral fluorescence emission data for filters illuminated with
ultraviolet radiation.
The variables in each member spectrum are as follows:
w.length(nm)s.q.irradphoton irradiance (mol m-2 s-1)
These member objects contain metadata stored as R attributes. Accessors are
available to the metadata: what_measured(), how_measured(),
when_measured(), filter_properties() and comment().
Note
Please see the help for the indexing vectors for specific details. The
member spectra are named consistently with filters.mspct. Currently
all members are photography filters.
Examples
names(filters_UVIVIF.mspct)
#> [1] "Tangsinuo_JB450_2.0mm_52mm"
#> [2] "Heliopan_Yellow_5_SH_PMC_2.3mm_52mm"
#> [3] "Hoya_Y_(K2)_HMC_2.3mm_52mm"
#> [4] "Heliopan_Orange_22_SH_PMC_2.2mm_52mm"
#> [5] "Hoya_25A_HMC_2.3mm_52mm"
#> [6] "Tangsinuo_HB650_2.1mm_52mm"
#> [7] "Zomei_IR680_2.1mm_52mm"
filters_UVIVIF.mspct$Hoya_25A_HMC_2.3mm_52mm
#> Object: source_spct [154 x 2]
#> Wavelength range 400-1049.65 nm, step 0.42-14.61 nm
#> Label: Photography filter: Hoya red 25A 52mm HMC approx 603nm cut-in.
#> Measured on 2025-01-10 21:28:05.792794 UTC
#> Variables:
#> w.length: Wavelength [nm]
#> s.q.irrad: Spectral photon irradiance [mol s-1 m-2 nm-1]
#> --
#> # A tibble: 154 × 2
#> w.length s.q.irrad
#> <dbl> <dbl>
#> 1 400 -1.57e-11
#> 2 402. -1.56e-11
#> 3 410. -2.75e-11
#> 4 411. -2.66e-11
#> 5 415. -2.31e-11
#> 6 420. -1.77e-11
#> 7 430. -2.77e-11
#> 8 433. -2.97e-11
#> 9 438. -2.59e-11
#> 10 444. -2.42e-11
#> # ℹ 144 more rows
what_measured(filters_UVIVIF.mspct$Hoya_25A_HMC_2.3mm_52mm)
#> [1] "Photography filter: Hoya red 25A 52mm HMC approx 603nm cut-in."
cat(how_measured(filters_UVIVIF.mspct$Hoya_25A_HMC_2.3mm_52mm))
#> Measured by transmission with excitation of 900 umol m-2 s-1 of UV-A1 radiation.
#> Excitation:Convoy S2+ flashlightUVA-1 365 nm.
#> Acquired with MayaPro2000 (MAYP11278), with a cosine diffuser
#> R (4.4.2), 'ooacquire' (0.5.2) in mode "auto-attr", 'rOmniDriver' (0.1.20) and OmniDriver (2.72).
cat(comment(filters_UVIVIF.mspct$Hoya_25A_HMC_2.3mm_52mm))
#> Smoothed using 'supsmu', span = 0.08