Apparatus and method for orienting monocrystalline material for sawing
US4002410A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 17, 1975 |
| Grant date | Jan 11, 1977 |
| Priority date | — |
| Expiry date | Mar 17, 1995 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01B5/0002
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A small portable device quickly secured to and removed from a body of monocrystalline material to be sawed and useful for aligning the body with respect to a saw blade, permitting sawing with precisely predetermined crystallographic orientation. The device has a viewing screen, a light source, and first and second autocollimators. The first autocollimator directs a first collimated light beam toward a surface of the material. The resultant reverse reflection is directed back through the collimating lens and a beam splitter images the reflection on the screen, providing a pattern on the screen characteristic of a crystallographic plane of the material, the pattern position corresponding to the orientation of the device with respect to the crystallographic plane. The second autocollimator directs a second collimated light beam toward the saw blade surface, the resultant reflection being directed back through its collimating lens and imaged on the screen as a second pattern having a position corresponding to the orientation of the blade with respect to the device. A small enclosure contains the screen, light source, both autocollimators, and imaging optics. A clamp arrangement secures…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.