CAPSULE ENDOSCOPE OPTICAL SYSTEM CAPABLE OF MINIATURIZING A CAPSULE ENDOSCOPE WHILE INCLUDING A PLURALITY OF WIDE ANGLE IMAGING LENSES

摘要

PURPOSE: A capsule endoscope optical system is provided to implement wide viewing angle which is more than 170 degrees by reducing the diameter range of light ray which is radiated to a capsule endoscope.;CONSTITUTION: A first lens(10a) is a meniscus lens which has the negative refractive power. A second lens(10b) has a spherical surface which is symmetrical with the first lens while being arranged in the back side of the first lens. A diaphragm(20) is included between the first lens and the second lens. A third lens(10c) is arranged in the back side of the second lens. The second lens and the third lens correct the image through the diaphragm.;COPYRIGHT KIPO 2010