colour.sd_single_led¶
-
colour.
sd_single_led
(peak_wavelength, fwhm, shape=SpectralShape(360, 780, 1), method='Ohno 2005')[source]¶ Returns a single LED spectral distribution of given spectral shape at given peak wavelength and full width at half maximum according to given method.
Parameters: - peak_wavelength (numeric) – Wavelength the single LED spectral distribution will peak at.
- fwhm (numeric) – Full width at half maximum, i.e. width of the underlying gaussian spectral distribution measured between those points on the y axis which are half the maximum amplitude.
- shape (SpectralShape, optional) – Spectral shape used to create the spectral distribution.
- method (unicode, optional) – {‘Ohno 2005’}, Computation method.
Returns: Single LED spectral distribution.
Return type: Notes
- By default, the spectral distribution will use the shape given by
colour.DEFAULT_SPECTRAL_SHAPE
attribute.
References
Examples
>>> sd = sd_single_led(555, 25) >>> sd.shape SpectralShape(360.0, 780.0, 1.0) >>> sd[555] # doctest: +ELLIPSIS 1.0000000...