Re: Instrument Illuminants
Re: Instrument Illuminants
- Subject: Re: Instrument Illuminants
- From: Marco Ugolini <email@hidden>
- Date: Tue, 06 Jan 2009 17:31:40 -0800
- Thread-topic: Instrument Illuminants
In a message dated 1/6/09 4:07 AM, Graeme Gill wrote:
> White LEDs are typically worse in regard to UV, since they rely on
> a blue LED + phosphor, and given the blue is relatively narrow,
> there is little output at shorter wavelengths (ie. they are
> by default "UV Cut").
Hi Graeme.
In other words, is it a fair assumption to regard as "UV cut" any
spectrophotometer whose light source is specified as a white LED? At least
at this point in time and in the absence of any specifications to the
contrary?
Marco Ugolini
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