| 摘要 |
The invention concerns a collapsible virtual reality viewer optical attachment, assignable to a portable or, with an equivalent term, mobile, device of any kind, a tablet or a mobile phone and supplementing its functionality; functioning as a virtual reality viewer of a picture viewed on the display (2) of the display device (1), hand-held by the user before his eyes (4) while being used (in open position), whereas in unused state, it collapsibly fits to the external surface of the display device (1), e.g. tablet or mobile phone, as its part or as screen protecting cover as the case may be. |
