"Lambert's cosine law" meaning in English

{
  "etymology_text": "Named after Johann Heinrich Lambert.",
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  "lang_code": "en",
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      "glosses": [
        "A law stating that the radiant intensity or luminous intensity observed from an ideal diffusely reflecting surface or ideal diffuse radiator is directly proportional to the cosine of the angle between the direction of the incident light and the surface normal."
      ],
      "id": "en-Lambert's_cosine_law-en-name-OVUNK9AU",
      "links": [
        [
          "optics",
          "optics"
        ],
        [
          "radiant intensity",
          "radiant intensity"
        ],
        [
          "luminous intensity",
          "luminous intensity"
        ],
        [
          "ideal",
          "ideal"
        ],
        [
          "diffusely",
          "diffusely"
        ],
        [
          "reflect",
          "reflect"
        ],
        [
          "surface",
          "surface"
        ],
        [
          "radiator",
          "radiator"
        ],
        [
          "directly proportional",
          "directly proportional"
        ],
        [
          "angle",
          "angle"
        ],
        [
          "surface normal",
          "surface normal"
        ]
      ],
      "raw_glosses": [
        "(optics) A law stating that the radiant intensity or luminous intensity observed from an ideal diffusely reflecting surface or ideal diffuse radiator is directly proportional to the cosine of the angle between the direction of the incident light and the surface normal."
      ],
      "related": [
        {
          "word": "Lambertian"
        }
      ],
      "synonyms": [
        {
          "word": "cosine emission law"
        },
        {
          "word": "Lambert's law"
        },
        {
          "word": "Lambert's emission law"
        }
      ],
      "topics": [
        "engineering",
        "natural-sciences",
        "optics",
        "physical-sciences",
        "physics"
      ],
      "wikipedia": [
        "Johann Heinrich Lambert",
        "Lambert's cosine law"
      ]
    }
  ],
  "word": "Lambert's cosine law"
}

{
  "etymology_text": "Named after Johann Heinrich Lambert.",
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  "pos": "name",
  "related": [
    {
      "word": "Lambertian"
    }
  ],
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      "glosses": [
        "A law stating that the radiant intensity or luminous intensity observed from an ideal diffusely reflecting surface or ideal diffuse radiator is directly proportional to the cosine of the angle between the direction of the incident light and the surface normal."
      ],
      "links": [
        [
          "optics",
          "optics"
        ],
        [
          "radiant intensity",
          "radiant intensity"
        ],
        [
          "luminous intensity",
          "luminous intensity"
        ],
        [
          "ideal",
          "ideal"
        ],
        [
          "diffusely",
          "diffusely"
        ],
        [
          "reflect",
          "reflect"
        ],
        [
          "surface",
          "surface"
        ],
        [
          "radiator",
          "radiator"
        ],
        [
          "directly proportional",
          "directly proportional"
        ],
        [
          "angle",
          "angle"
        ],
        [
          "surface normal",
          "surface normal"
        ]
      ],
      "raw_glosses": [
        "(optics) A law stating that the radiant intensity or luminous intensity observed from an ideal diffusely reflecting surface or ideal diffuse radiator is directly proportional to the cosine of the angle between the direction of the incident light and the surface normal."
      ],
      "synonyms": [
        {
          "word": "cosine emission law"
        },
        {
          "word": "Lambert's law"
        },
        {
          "word": "Lambert's emission law"
        }
      ],
      "topics": [
        "engineering",
        "natural-sciences",
        "optics",
        "physical-sciences",
        "physics"
      ],
      "wikipedia": [
        "Johann Heinrich Lambert",
        "Lambert's cosine law"
      ]
    }
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  "word": "Lambert's cosine law"
}