Optical depth measuring device to be mounted on drilling power tool
US4968146A · kind A · utility
16Cited by
1References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 10, 1988 |
| Grant date | Nov 6, 1990 |
| Priority date | — |
| Expiry date | Nov 10, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T408/21
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An optical depth measuring device for use with a drilling power tool for drilling a bore in a workpiece and comprising a radiation source for projecting an optical pattern onto a surface of the workpiece, a radiation receiver for receiving an image reflected from the surface of the workpiece, a conveying lens located in front of the radiation receiver for directing the reflected image and signal processing means for continuously determining the depth of the drilled bore in accordance with the image received by the radiation receiver.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.