Product Description

1. Wood lamp examination is a diagnostic test in which the skin or hair is examined while exposed to the black light emitted by Wood lamp. Black light is invisible to the naked eye because it is in the ultraviolet spectrum, with wavelength just shorter than the colour violet. The lamp glows violet in a dark environment, because it also emits some light in the violet part of the electromagnetic spectrum.
2. A traditional Wood lamp is a low-output mercury arc covered by a Wood filter (barium silicate and 9% nickel oxide), and emits wavelength *****0 nm (peak **5 nm). This was invented in ***3 by a Caltimore physicist, Robert W. Wood.
3. Ideally, skin to be examined should not have been recently washed or had any makeup,
4. deodorant or moisturising cream applied, as these can fluorescence causing a false positive result
5. 2. Gentle facial skin cleansing may be required
6. Wood lamp is turned on to warm up for about a minute
7. Room lights are turned off and window shades drawn or black drape used to completely darken the surroundings
8. After waiting to adapt to the dark, the skin is examined with Wood lamp for a few seconds. The lamp is held about ****0 cm away from the skin. Examination is painless and safe.