{
  "$type": "site.standard.document",
  "description": "An optical system (100A to 100D) includes, in order from an enlargement conjugate side to a reduction conjugate side, a front unit (101A to 101D) including a plurality of lenses, an aperture stop (ST), and a rear unit (102A to 102D) including a plurality of lenses. A projection characteristic of…",
  "path": "/patents/1408200",
  "publishedAt": "2023-12-20T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60R1/00",
    "CANON KK [JP]"
  ],
  "textContent": "An optical system (100A to 100D) includes, in order from an enlargement conjugate side to a reduction conjugate side, a front unit (101A to 101D) including a plurality of lenses, an aperture stop (ST), and a rear unit (102A to 102D) including a plurality of lenses. A projection characteristic of the optical system representing a relationship between a half angle of view and an image height on an image plane satisfies a predetermined condition.",
  "title": "WIDE-ANGLE IMAGING LENS"
}