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Wood's light |
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light (līt) electromagnetic radiation with a range of wavelength between 3900 (violet) and 7700 (red) angstroms, capable of stimulating the subjective sensation of sight; sometimes considered to include ultraviolet and infrared radiation as well.
idioretinal light the sensation of light in the complete absence of external stimuli. intrinsic light the dim light always present in the visual field. polarized light light of which the vibrations are made over one plane or in circles or ellipses. Wood's light ultraviolet radiation from a mercury vapor source, transmitted through a nickel-oxide filter (Wood's filter, or glass), which holds back all but a few violet rays and passes ultraviolet wavelengths of about 365 nm.
Wood's light. See ultraviolet lamp. light [līt] electromagnetic radiation with a range of wavelength between 390 (violet) and 770 (red) nanometers, capable of stimulating the subjective sensation of sight; sometimes considered to include ultraviolet and infrared radiation as well. idioretinal light (intrinsic light) the sensation of light in the complete absence of external stimuli. polarized light light of which the vibrations are made over one plane or in circles or ellipses. Wood's light ultraviolet radiation from a mercury vapor source, transmitted through a nickel-oxide filter (Wood's filter or glass), which holds back all but a few violet rays and passes ultraviolet rays of wavelength around 365 nm; used in diagnosis of fungal infections of the scalp and erythrasma, and to reveal the presence of porphyrins and fluorescent minerals.
Wood's light, lamp ultraviolet radiation from a mercury vapor source, transmitted through a nickel oxide filter (Wood's filter), which holds back all but a few violet rays and passes ultraviolet wavelengths of about 365 nm; used in diagnosis of fungal infections of the skin and to reveal the presence of porphyrins and fluorescent minerals. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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