critical wavelength

critical wavelength

[′krid·ə·kəl ′wāv‚leŋkth]
(communications)
The free-space wavelength corresponding to the critical frequency.
References in periodicals archive ?
36% Baseline (Pre -Irradiation): Critical Wavelength Pre-Irradiation 1 MED 2 MEDs 379.
But mainly I educate them about the Arizona melanoma dangers and why I recommend LUCA sunscreen with its critical wavelength protection against UVA & UVB rays.
DeLeo explained that there is no way to know the degree of UVA protection offered by sunscreens marketed in the United States, unlike in Europe, where products are tested for efficacy and photostability according to critical wavelength, an in vitro assessment, and the persistent pigment darkening method.
The new product from Daylight Solutions will provide increased performance in spectral brightness, tuning range and power at this critical wavelength.
We analyzed the six formulations containing bemotrizinole and bisoctrizole for stability, critical wavelength (broad spectrum protection criteria) and SPF testing (two subject in-vivo).
market to back up its UVA protection claims with a critical wavelength value printed on the bottle.
The latter should be assessed using an in vitro critical wavelength method, and an in vivo persistent pigment darkening (PPD) method, Dr.
The Ignis Athermal AWG components in the LG-Nortel WDM-PON equipment have been specifically designed and manufactured to perform the critical wavelength splitting function", said Ignis Photonyx' CEO Even Zimmer.
The ruling also allows the use of multiport solar simulators for SPF testing, reduces test panel size from 20 to 10 for SPF testing, and relies on critical wavelength test methods for "broad spectrum" claims and not the UVA1/UV ratio test.
to print on the bottle its critical wavelength value, the highest in the country and the most effective way to rate UVA protection.
The US FDA's release in 2011 of a final rule on sunscreen caused a major uptick in requests to test UVA critical wavelength properties.
Luckily for consumers who don't want to wait, LUCA(TM) Sunscreen is already providing the maximum level of protection against UVA rays and is making that information available in the form of a critical wavelength value printed on the bottle.