Method and apparatus for adjusting optical device to correspond to eye positions
US6554428B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 7, 2001 |
| Grant date | Apr 29, 2003 |
| Priority date | — |
| Expiry date | Oct 15, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B27/0172
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A head-mounted display or other optical device which provides at least a first image to at least one eye of a user can be adjusted for changing the alignment of an image path with respect to a user's eye position. An alignment beam generator is mounted so as to move with the image path device so a user can use characteristics of the alignment beam to achieve a desired alignment of the image path. Preferably, the alignment beam is configured, such as by making it substantially narrow-beam, linear and/or non-dispersive, such that beam is substantially invisible to the user until it is within a preferred alignment range, so as to provide a binary or visible/invisible, indicator of alignment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.