Title :
Optical system design of spectrum switchable jaundice phototherapy apparatus based on high-brightness LED
Author :
Peipei Wang ; Xibin Yang ; Yong Liang ; Zhiliang Jin ; Long Zhang ; Daxi Xiong ; Xiaodong Wu
Author_Institution :
Jiangsu Key Lab. of Med. Opt., Suzhou Inst. of Biomed. Eng. & Technol., Suzhou, China
Abstract :
Neonatal jaundice could occur in most newborn infants. Phototherapy is a widely used treatment for it. Blue and green narrow-band LED chips, with central wavelength 460nm and 505nm, are selected for reliable and effective phototherapy. To meet the requirement of irradiance and uniformity, two different optical design schemes for neonatal jaundice phototherapy apparatus are proposed in this paper. The first design uses 13 LED modules arranged in a specific order while the other one is based on a pair of specially designed fly-eye lens optical systems. The simulation and experimental results indicate that phototherapy equipments designed in this paper have advantages in effective spectral range, illumination intensity and uniformity over those traditional ones.
Keywords :
diseases; lenses; light emitting diodes; optical design techniques; paediatrics; photodynamic therapy; blue narrow-band LED chips; effective spectral range; fly-eye lens optical systems; green narrow-band LED chips; high-brightness LED; illumination intensity; irradiance; neonatal jaundice; newborn infants; optical system design; spectrum switchable jaundice phototherapy apparatus; uniformity; wavelength 460 nm; wavelength 505 nm; Lenses; Light emitting diodes; Light sources; Lighting; Optical design; Optical switches; Pediatrics;
Conference_Titel :
Solid State Lighting (SSLCHINA), 2014 11th China International Forum on
Print_ISBN :
978-1-4799-6696-7
DOI :
10.1109/SSLCHINA.2014.7127219
