{
  "$type": "site.standard.document",
  "description": "A display apparatus () for displaying a virtual image (VIMG) comprises: an optical engine (ENG) to form input light (IN), which represents an input image (IMG), an expander device (EPE) to form light beams (B,B) of output light (OUT) by expanding light beams (B,B) of the input light (IN), the…",
  "path": "/patents/1358310",
  "publishedAt": "2024-01-25T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "G02B27/0149",
    "Shenzhen Optiave Display Technology Co., Ltd."
  ],
  "textContent": "A display apparatus () for displaying a virtual image (VIMG) comprises: an optical engine (ENG) to form input light (IN), which represents an input image (IMG), an expander device (EPE) to form light beams (B,B) of output light (OUT) by expanding light beams (B,B) of the input light (IN), the expander device (EPE) comprising: a waveguide plate (SUB), a diffractive in-coupling element (DOE) to form first guided light (B) and second guided light (B) by coupling input light (IN) into the waveguide plate (SUB), wherein the display apparatus () comprises a base (BASE) and an actuating mechanism (MOTOR) to cause rotary motion of the expander device () with respect to the base (BASE), wherein an angle (γ) between an optical axis (AX) of the optical engine (ENG) and the axis (AX) of rotation of the expander device () is in the range of 10° to 45°.",
  "title": "DISPLAY DEVICE, A VEHICLE WITH A DISPLAY DEVICE AND DISPLAY VIRTUAL IMAGE METHOD"
}