{
  "$type": "site.standard.document",
  "coverImage": {
    "$type": "blob",
    "ref": {
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  "description": "A leveling base includes the leveling base including a pedestal, a leveling plate provided to the pedestal via leveling screws such that the leveling is enabled, and a prism unit including a prism having retroreflective characteristics. The prism unit is provided on the leveling plate, the prism…",
  "path": "/patents/1413554",
  "publishedAt": "2022-10-19T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F16M11/041",
    "TOPCON CORP [JP]"
  ],
  "textContent": "A leveling base includes the leveling base including a pedestal, a leveling plate provided to the pedestal via leveling screws such that the leveling is enabled, and a prism unit including a prism having retroreflective characteristics. The prism unit is provided on the leveling plate, the prism unit retro-reflects a light beam entering from a vertically lower side by the prism, a lower throughhole through which a light beam which enters/is reflected to the prism penetrates is provided in the pedestal, and an attachment/detachment portion which enables the attachment/detachment of a predetermined measuring device is provided on an upper surface of the leveling plate.",
  "title": "LEVELING BASE, SURVEYING INSTRUMENT AND SURVEYING SYSTEM"
}