spectrum parameter

•         The characteristic parameters of spectrum parameter mainly includes: wavelength of peak emission、spectral radiant bandwidth and spectral power distribution.spectrum of monochrome LED light are single wave peak,wavelenght and bandwidth can indicate static frequency characteristic of led. white light led is a composite of multifarious monochromatic spectrum.all led spectrum characteristic can be represented by spectral power distribution P(λ),furthermore,but also can get the colorimetric parameters by calculating and simulating. spectral power distribution test can be differentiate varieties of light colors from mixed light via spectrometer system.spectrometer system is commonly described by two models, the prisms (With special lenses and prisms we can manipulate this light.) and grating.

prism or grating have come to maturity for LED spectrophotometer.