No UV Output: No Sunburn.
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Many users of UV transilluminators have experienced, at one time or another, either a mild case of sun-burn or `spots before the eyes` as a result of spending too long either examining a gel or cutting out bands.
The potentially harmful effects of shorter wavelength light (less than 400 nm) are well documented and were even the subject of a report from the Council on Scientific Affairs of the American Medical Association [1]: "high-intensity UV radiation can cause erythema, degenerative and neoplastic changes in the skin, retinal damage and cataracts, and modification of the immunologic system of the skin."
Even the fluorescent lamps commonly used in homes and businesses emit sufficient UV light to cause mutagenesis in Salmonella [2] upon prolonged exposure. |
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As shown in the accompanying figure, the output spectrum of the blue lamp / blue filter system used in the Dark Reader optical system contains less UV light than the ambient fluorescent lighting used in most offices and laboratories. Because the Dark Reader transilluminator emits almost immeasurably low levels of light below 400 nm, there is essentially zero risk of UV radiation causing eye or skin damage, making it much safer to use than a traditional UV transilluminator. |
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[1] Council on Scientific Affairs, JAMA, 1989, 262, 380-384
[2] Hartman, Z., et al., Mut. Res., 1991, 260, 25-38. |
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