Laser delivery system
US4896015A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 29, 1988 |
| Grant date | Jan 23, 1990 |
| Priority date | — |
| Expiry date | Jul 29, 2008 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K26/08
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A laser delivery system comprises a light weight hollow boom having a bearing intermediate its ends which permits the distal end of the boom to move longitudinally and rotationally relative to the proximal end of the boom. The bearing supports the distal end without supporting physical contact, e.g. by a layer of fluid. The proximal end of the boom is carried by a boom support for movement about two axes, and includes a fork journalled in a base. In one embodiment, the shaft has a portion offset from the axis thereof, and a beam direction changer, such as a prism, is located along the shaft axis between spaced bearings journalling the shaft and carried by the base. In a second embodiment, a light conducting passage extends completely through the shaft. A handpiece is connected to the distal end of the boom for rotation about the boom axis. The boom is counterbalanced by a first counterweight in offset relation to the boom axis relative to the shaft axis, and on the opposite side from the boom of the pivotal axis transverse to the boom. A second smaller counterweight is between the boom support and the boom bearing, with its center of gravity on the boom axis, and a third counterwei…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.