Borescope with pattern projection

US11619486B2 · kind B2 · utility

Assignee

• LUFTHANSA TECHNIK AG · DE

Inventors

• Jan Oke Peters · Hamburg, DE
• Michael Thies · Indianapolis, US
• Sören Wedow · Waldgirmes, DE
• Ronald Blöcher · Waldgirmes, DE
• Oliver Neumann · Solms, DE
• Tarek Mostafa · Heidkate, DE
• Werner Neddermeyer · Echternach, LU
• Sönke Bahr · Darmstadt, DE
• Sven Rasche · Hamburg, DE

Key dates

• Filing date: Nov 13, 2020
• Grant date: Apr 4, 2023
• Expiry date: Nov 13, 2040

Classification

• Technology area (CPC G): Physics
• CPC primary: G03B37/005
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

A borescope includes an electronic image capture unit having two image capture sensors as a borescope lens at an end of a shaft that is designed for being inserted into a borescope opening, a position and alignment of the image capture sensors in relation to one another being suitable for ascertaining three-dimension (3D) information using triangulation; and a pattern projector configured to project a pattern into a common recording region of the image capture sensors. The pattern projector includes: a fundamentally optically imaging light-guide bundle, which is made up of statistically distributed optical fibers having differing transmittances, to whose input surface a light source is coupled and whose output surface is aligned with the region captured by the image capture sensors.