{
  "$type": "site.standard.document",
  "coverImage": {
    "$type": "blob",
    "ref": {
      "$link": "bafkreieml5adqx4qd2yg6qkdnt5y2yasy4ih2egcqhzy2yaopvfehott24"
    },
    "mimeType": "image/png",
    "size": 98785
  },
  "description": "A lens system (IL) that forms an image on an imaging element (12), includes: a first lens element (L1), a second lens element (L2), and a third lens element (L3) arranged in order from an object side to an image surface side along an optical axis; and a diaphragm (A). At least one of the first and…",
  "path": "/patents/1428234",
  "publishedAt": "2025-12-24T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "G02B13/0045",
    "PANASONIC IP MAN CO LTD [JP]"
  ],
  "textContent": "A lens system (IL) that forms an image on an imaging element (12), includes: a first lens element (L1), a second lens element (L2), and a third lens element (L3) arranged in order from an object side to an image surface side along an optical axis; and a diaphragm (A). At least one of the first and second lens elements has a free-curved surface that is asymmetric with respect to the optical axis. The first lens element has a shape of a surface facing the object side, convex toward the object side. The second lens element has a shape of a surface facing the image surface side, convex toward the object side. The third lens element has a shape of a surface facing the object side, convex toward the image surface side. The lens system has one or more free-curved surfaces closer to the image surface side than the diaphragm.",
  "title": "LENS SYSTEM, IMAGING DEVICE, AND IMAGING SYSTEM"
}