Head mounted display device and method for providing visual aid using same
US10951882B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 19, 2015 |
| Grant date | Mar 16, 2021 |
| Priority date | — |
| Expiry date | Feb 23, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N5/64
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An external scene image captured by an external scene imaging electronic camera attached to a head mounted display (HMD) is projected and displayed onto an image display screen arranged in front of the eyes of the user as a virtual image with a suitable viewing distance corresponding to the visual acuity of the user. At this time, for each object image presented in the virtual image of the external scene image, the virtual image is processed and formatted to add a predetermined degree of binocular disparity and image blur to the virtual image projected and displayed on the right and the left image display screen on the basis of a predetermined converted distance calculated from the real distance of each object. Thus, the user is given a sense of a realistic perspective for the virtual image of the external scene, free of the discomfort or unease.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.