Development of multiwavelength excitation light source for autofluorescence and photodynamic diagnosis systems

KENAR LIM N. , Lim H. S. , Mirzaaghasi A.

Conference on Advanced Biomedical and Clinical Diagnostic and Surgical Guidance Systems XII, San-Francisco, Costa Rica, 2 - 04 February 2014, vol.8935 identifier identifier

  • Publication Type: Conference Paper / Full Text
  • Volume: 8935
  • Doi Number: 10.1117/12.2039650
  • City: San-Francisco
  • Country: Costa Rica


New design of the excitation light source that can stably generate light with center wavelengths of 450nm, 530nm, 632.8nm and white light for auto-fluorescence(AF) and photodynamic diagnosis(PDD) of cancer in clinics in a single system is presented in this study. The light source consists of Xenon Lamp (300W), light guide module including motorize filter wheel equipped with optical filters with corresponding to wavelength bands, servo motor, motorize iris, a cooling system, power supply and optical transmission part for the output light. The transmission part of the light source was developed to collimate the light with desired wavelength into input of fiber optic. Output powers are obtained average 99.91 mW for 450+/-40 nm, 111.01 mW for 530+/-10nm, and 78.50 mW for 632.8+/-10nm.