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US 4,309,616 AGranted
Apparatus for producing ultraviolet radiation
OwnerFriedrich Wolffinventor
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OwnerFriedrich Wolffinventor
Estimating the term…
Apparatus for treatment of humans with ultraviolet rays has one or more mercury lamps, Xenon lamps or other radiation sources and associated reflectors which establish a high-density radiation field in close proximity to the exit opening or openings. The radiation is filtered so that the body of a person located in the region of the high-density field is exposed only to rays in the range of 315 to 400 nanometers. The heat energy output of the radiation source or sources is sufficiently low to enable a person to stand long periods of uninterrupted exposure to radiation in the range of 315 to 400 nm so that a tanning effect can be achieved as a result of a single continuous exposure for a requisite interval of time. Alternatively, the apparatus is equipped with suitable heat absorbing and intercepting means, especially if the radiation source or sources are high-pressure mercury lamps or Xenon lamps. The apparatus can constitute a table model, a floor model, a ceiling model, a wall model or a combination of these.
Apparatus for producing ultraviolet radiation and constituting or forming part of a quick-tanning sunlamp, comprising an irradiating unit including at least one source of ultraviolet radiation, means associated with said source and defining at least one substantially horizontal exit opening for ultraviolet radiation, said opening being disposed below said source, said source and said associated means being constructed and assembled to establish a high-density radiation field of predetermined area at a small distance from and below said exit opening, and means for intercepting at least the major percentage of wavelength bands of ultraviolet radiation below approximately 315 nm ahead of said field as considered in the direction of propagation of the radiation toward said field;
Apparatus for producing ultraviolet radiation, particularly a quick-tanning sunlamp, comprising at least one source of ultraviolet radiation;
Dependencies are inferred from the claim text.