Head-mounted image display apparatus
US5739893A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 22, 1995 |
| Grant date | Apr 14, 1998 |
| Priority date | — |
| Expiry date | Jun 22, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2027/0159
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
In a head-mounted image display apparatus (1) for viewing images on a liquid crystal display means virtually enlarged by an enlarging lens while worn on the head, main apparatus (10) comprises a front case (2), which is positioned at the frontal region side when said main apparatus is worn on the head, and a back case (3), which is positioned at the occipital region. In addition, an air bag (8), which inflates to cause the frontal region to contact a buffer pad affixed to the inside surface of the front case (2), is provided on the inside of the back case (3). The back case (3) is able to rotate on connecting member 5 to the front case (2). Adjustment mechanisms for moving the optical system in the pupil distance direction and in the direction of the optical axes is disposed inside main apparatus (10), and the knobs therefor are centrally disposed on the front of main apparatus (10).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.