초록
본 연구에서는 플라스틱제와 유리제의 재질에 따른 박막형(coated type)과 벌크형(bulk type) 조광렌즈의 다양한 온도($6^{\circ}C$, $12^{\circ}C$, $28^{\circ}C$)에서 UVA광원에 대한 광변색성 및 color의 전이도를 측정하였다. 박막형 조광렌즈(Tbr, TMs)는 온도에 상관없이 벌크형 렌즈보다 더 높은 포화치(saturated value)를 보였으며, 유리계 조광렌즈의 경우에는 smoke색상의 렌즈가 brwon색상보다 더 빠른 darkening속도를 보였다. 또한 transmittance와 color가 ANSI Z80.3 규정에의 부합 여부에서는 온도에 상관없이 교통 신호등 항목을 pass하였으며, 박막형 조광렌즈를 제외한 플라스틱제 렌즈와 유리제 조광렌즈는 포화치가 cosmetic용으로 구분되었고, 박막형인 Tbr과 TMs는 $6^{\circ}C$와 $12^{\circ}C$의 포화치는 general용이었지만, $28^{\circ}C$에서는 cosmetic용이었다. darkening은 온도가 낮아짐에 따라 효과적이었지만, 반면에 fading은 온도가 높아지면서 효과적이었다.
In this study, We measured transmittance and color change of various photochromic lens as a function of temperature(6, 12, $28^{\circ}C$), irradiation time of UVA lamp and the types of materials(plastic and glass) and distribution of photochromic ingredients(coated and bulk type). The coated-type photochromic lens showed higher saturated value than bulk-type lens without regard to temperature. And darkening rate of smoke color lenses were higher compare to brown lens in case of glass photochromic lens. All of photochromic lens passed ANSI Z80.3 regulation in transmittance and color independent of temperature. The saturated values of plastic photochromic lens excluded coated-type and glass photochromic lens were ranked as cosmetic use. The saturated value of coated-type. Tbr and TMs were general applications in $6^{\circ}C$ and $12^{\circ}C$, but cosmetic purpose in $28^{\circ}C$. The darkening rate was increased with decreasing temperature, whereas the fading rate became higher with increasing temperature.