The collection of spectra leds.mspct contains spectra for light
emitting diodes (LEDs) designed for specific uses as well as for general
illumination. The character
vectors described here contain the names of the spectra for LEDs sold for
specific uses to facilitate their extraction from the collection. One
additional vector, led_use contains the wording of uses as
in the names of the spectra in the collection.
led_usesplant_grow_leds
high_CRI_leds
A vector of character strings.
An object of class character of length 7.
An object of class character of length 9.
The character vector plant_grow_leds contains the names of the spectra
to facilitate their extraction from the collection. This includes LEDs
designed to be the only light sources as well as LEDs designed to be used
together with other LEDs to assemble luminaires used for plant cultivation,
either as only light source or to supplement natural light.
The character vector high_CRI_leds contains the names of the spectra
to facilitate their extraction from the collection. This includes white LEDs
with a high color reproduction index (CRI > 95) as computed from the actual
measured spectra. Nowadays some of these types of LEDs are not only
advertised as good from illumination in museums, exhibitions and as light
sources for video and photography, but also as less stressful to human vision
and in some cases as good for the entraining of the human circadian clock. In
practice this means an emission spectrum covering most of visible light with
only minor peaks and valleys.
Most LEDs can be useful in different situations individually or in combination with other types. The lists are thus not exclusive but rather indicate a typical use.
leds.mspct