Variable field-of-view visible and near-infrared polarization compound-eye endoscope.
A multi-functional compound-eye endoscope enabling variable field-of-view and polarization imaging as well as extremely deep focus is presented, which is based on a compact compound-eye camera called TOMBO (thin observation module by bound optics). Fixed and movable mirrors are introduced to control the field of view. Metal-wire-grid polarizer thin film applicable to both of visible and near-infrared lights is attached to the lenses in TOMBO and light sources. Control of the field-of-view, polarization and wavelength of the illumination realizes several observation modes such as three-dimensional shape measurement, wide field-of-view, and close-up observation of the superficial tissues and structures beneath the skin.
Research Institute of Electronics, Shizuoka University, 3-5-1 Johoku, Naka-ku, Hamamatsu, Shizuoka 432-8011, Japan. kagawa@idl.rie.shizuoka.ac.jp
K
K
Kagawa
R
R
Shogenji
E
E
Tanaka
K
K
Yamada
S
S
Kawahito
J
J
Tanida
D000818:Animals; D054910:Compound Eye, Arthropod / Q000033:anatomy & histology*; D003198:Computer Simulation; D019723:Endoscopes; D021621:Imaging, Three-Dimensional; D007259:Infrared Rays; D055095:Optics and Photonics / Q000295:instrumentation*