Display apparatus
US5266930A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 28, 1990 |
| Grant date | Nov 30, 1993 |
| Priority date | — |
| Expiry date | Nov 28, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2027/0159
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention is directed to a display apparatus which can display information well and does not compromise the feel of a helmet in which the display apparatus is incorporated. The helmet has a front opening formed therein and has a transparent shield mounted thereon so as to cover the front opening. The display apparatus incorporates a display unit disposed on the inner side of the helmet for displaying information thereon. Display light from the display unit is reflected toward a visual point position by an inner face of the shield so that an observer visually observes a virtual image of the display information of the display unit from within the helmet through the shield. The display unit is disposed on the inner side of a chin portion of the helmet so as to not to create any obstruction to the observer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.