colour.colorimetry.sd_single_led_Ohno2005

colour.colorimetry.sd_single_led_Ohno2005(peak_wavelength: float, fwhm: float, shape: colour.colorimetry.spectrum.SpectralShape = SPECTRAL_SHAPE_DEFAULT, **kwargs: Any) → colour.colorimetry.spectrum.SpectralDistribution

Return a single LED spectral distribution of given spectral shape at given peak wavelength and full width at half maximum according to Ohno (2005) method.

Parameters

• peak_wavelength (float) – Wavelength the single LED spectral distribution will peak at.

• fwhm (float) – 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 (colour.colorimetry.spectrum.SpectralShape) – Spectral shape used to create the spectral distribution.

• kwargs (Any) – {colour.colorimetry.sd_gaussian_fwhm()}, See the documentation of the previously listed definition.

Returns

Single LED spectral distribution.

Return type

colour.SpectralDistribution

Notes

• By default, the spectral distribution will use the shape given by colour.SPECTRAL_SHAPE_DEFAULT attribute.

References

[Ohn05], [OD08]

Examples

>>> sd = sd_single_led_Ohno2005(555, 25)
>>> sd.shape
SpectralShape(360.0, 780.0, 1.0)
>>> sd[555]  
1.0000000...

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