Patent ID: 9737961
Date: 2017-08-22
CPC Classifications: B08B,B23K,B23P,G02B

Claim:
1. A boroscope comprising a flexible hollow member having a first end and a second end, a working head being arranged at the second end of the hollow member, the working head having a first end adjacent the second end of the hollow member and a second end remote from the hollow member, a mirror being mounted on the working head by an adjustable mounting, a first light source arranged at a position between the first end and the second end of the working head, the first light source is arranged to direct light with a component of direction transverse to the axis of the hollow member of the boroscope, a first optical fiber extending through the hollow member from the first end of the hollow member to a position between the first end and the second end of the working head, the first optical fiber has an end between the first end and the second end of the working head, the end of the first optical fiber is arranged to receive light travelling with a component of direction transverse to the axis of the hollow member of the boroscope, a second light source arranged at the second end of the working head, the second light source is arranged to direct light with a component of direction parallel to the axis of the hollow member of the boroscope, a second optical fiber extending through the hollow member and the working head from the first end of the hollow member to the second end of the working head, the second optical fiber has an end at the second end of the working head, the end of the second optical fiber is arranged to receive light travelling with a component of direction parallel to the axis of the hollow member of the boroscope, a laser optical fiber extending through the hollow member from the first end to the second end of the hollow member, the laser optical fiber being arranged to direct laser light transmitted through the laser optical fiber onto the mirror on the working head, and an actuator device to adjust the position of the mirror, the adjustable mounting comprising two perpendicular axes of rotation and the mirror being rotatable about the two axes of rotation, the adjustable mounting comprising a micro-electro-mechanical system and the actuator device comprising the micro-electro-mechanical system.