| 특수 UVB파장 조사기의 홍반 발생 특성에 관한 연구 |
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임진숙, 박래준 |
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| The Studies of Characteristic of Induced Erythema by Specific UVB Lamp |
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Jin Sook Lim, Rae Joon Park |
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| Abstract |
Purpose
The present study purposed to examine induced characteristic of erythema by medium wave ultra violet(UVB) lamp. Methods: We compared sun ray and UVB lamp using spectroradiometer and UV radiometer. For measuring sun light irradiation, we used spectoradiometer and detected from 8 to 18 o clock every each hour on the beach, playground and rooftop of at 5 story building. The subjects for erythema examination were 5 healthy subjects who have no pathologic history of photosensitivity reaction, psoriasis and vitiligo. They were exposed to UVB radiation at the abdominal area for 2 hours and after irradiation, we observed the change of skin color every 12 hours over a period of 1 week. Results: Between sun light and UVB lamp, sun light had higher data on the chromaticity coordinates, dominant and peak wavelength, bandwidth and purity than the UVB lamp but on the colour temperature, brightness the UVB lamp had higher data than the sun ray. In comparison of sun light and UVB lamp, UVB lamp irradiated constantly such as 3.9~4.4 W/cm2 at a distance of 100cm between bed and lamp which was same as early morning irradiation on the sun light. The erythema didn`t appear to any subject. Conclusion: This results suggest that the UVB lamp has lower irradiance as much as early sun light. Therefore the UVB lamp had no influence of inducing erythema at a distance of 100cm between bed and lamp. |
| Key Words:
UVB, Eythema, Sun Light |
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