{
  "$type": "site.standard.document",
  "description": "An optical system according to an embodiment includes first to third lenses disposed along an optical axis from an object side to a sensor side direction, wherein the first lens has a meniscus shape convex toward the object side, and satisfies 1.7≤nt_≤2.3 and TTL≤6 mm. (nt_ is the refractive index…",
  "path": "/patents/1382212",
  "publishedAt": "2026-05-07T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "G02B13/0035",
    "LG INNOTEK CO., LTD."
  ],
  "textContent": "An optical system according to an embodiment includes first to third lenses disposed along an optical axis from an object side to a sensor side direction, wherein the first lens has a meniscus shape convex toward the object side, and satisfies 1.7≤nt_≤2.3 and TTL≤6 mm. (nt_ is the refractive index of the first lens with respect to the light of the t-line wavelength band, and TTL is the distance on the optical axis from the object-side surface of the first lens to the upper surface of the image sensor.)",
  "title": "OPTICAL SYSTEM AND CAMERA MODULE COMPRISING SAME"
}