{
  "$type": "site.standard.document",
  "description": "An optical device (10) of the present invention includes a protective cover (12), a housing (11) that is a cylindrical body, and a vibrating body (13). The vibrating body (13) vibrates the protective cover (12) by selecting, from a plurality of vibration modes in which the protective cover (12) is…",
  "path": "/patents/1412062",
  "publishedAt": "2025-08-06T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B06B1/0644",
    "MURATA MANUFACTURING CO [JP]"
  ],
  "textContent": "An optical device (10) of the present invention includes a protective cover (12), a housing (11) that is a cylindrical body, and a vibrating body (13). The vibrating body (13) vibrates the protective cover (12) by selecting, from a plurality of vibration modes in which the protective cover (12) is vibrated, a cleaning mode in which vibration displacement of the protective cover (12) becomes maximum and a higher-order heating mode in which the number of nodes is larger than that in the cleaning mode. In the heating mode, the position of the maximum vibration displacement in this vibration mode is within a region of the protective cover (12) that corresponds to the field of view of the optical sensor (1).",
  "title": "OPTICAL DEVICE AND OPTICAL UNIT COMPRISING OPTICAL DEVICE"
}