Development of in-vivo Confocal Microscope for Reflection and Fluorescence Imaging Simultaneously

In-vivo confocal microscope technology can be applied to the medical imaging diagnosis and new drug development. We present an in-vivo confocal microscope that can acquire a reflection image and a fluorescence image simultaneously and independently. To obtain reflection confocal images, we used a linearly polarized diode laser with the wavelength of 830 nm. To acquire fluorescence confocal images, we used two diode lasers with the wavelength of 488 nm and 660 nm, respectively. Because of a broad wavelength bandwidth from visible (488 nm) to near-IR (830 nm), we designed and optimized the optical system to reduce various optical aberrations. With the developed in-vivo confocal microscope, we performed ex-vivo cell imaging and in-vivo imaging of the human skin.