Flexure guidance system
US11454992B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 24, 2019 |
| Grant date | Sep 27, 2022 |
| Priority date | — |
| Expiry date | Oct 24, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B15/02
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A flexure based guidance system for precision motion control includes a base that is fixed in position, a carriage that can move relative to the base, an actuator provides the force to move the carriage relative to the base, and one or more flexures arrays that each comprise two or more leaf flexure elements. The actuator causes the carriage to move relative to the base, which causes the flexure elements in the flexure array to flex. The leaf flexure elements are thin, compliant and deform, bend, or deflect in a deterministic manner when mechanically stressed. In some embodiments, stiffeners can be added to the flexures. The guidance system can be integrated into a varifocal head mounted display (HMD) to adjust a location of one or moveable elements in an optical system of the HMD to control a location of an image plane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.