Led illumination for surgical endoscopes and industrial rigid boroscopes

A viewing tube for use as an endoscope or stroboscope that includes an LED illumination source comprising:

• a straight, elongated, rigid hollow outer tube;
• a coaxial smaller inner tube;
• one or more optical lenses disposed within said inner tube forming an optical path allowing human observation from a proximal end of said tube to a distal end of said tube;
• an eyepiece for human observation mounted at the proximal end of said tube;
• an LED light housing including an LED light source mounted within said LED light housing;
• a mounting block for mounting said LED light housing substantially perpendicular to said elongated rigid tube;
• a fiber optic bundle having a first end abutting said LED light source to receive light for transmission there through, said fiber optic bundle having a portion connected and surrounding said inner tube and said lens optical path within said inner tube, said fiber optic bundle having a second light emanating end mounted at the distal end of said tube for an illumination pattern emanating from the distal end of said tube;
• wherein the portion of the first end of the fiber optic bundle that covers the surface of the LED light source is a hemispherical concave shape;
• and
• a power source connected to said LED for providing electrical power for illuminating said LED.