JP6481021B2 - 分光輝度計の校正に用いる基準光源装置及びそれを用いる校正方法 - Google Patents
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Description
Claims (11)
- 開口である輝度基準面を備える積分球と、
前記積分球の外壁において互いに離間して設けられ、前記積分球の内部に波長特性が同等の光をそれぞれ入射する複数の第1光ポートと、
前記複数の第1光ポートのそれぞれに対し、光ファイバにより光を供給する単一の光源と、を含み、
前記単一の光源から前記複数の第1光ポートのそれぞれまでの光ファイバの長さが等しい、
ことを特徴とする分光輝度計の校正に用いる基準光源装置。 - 開口である輝度基準面を備える積分球と、
前記積分球の外壁において互いに離間して設けられ、前記積分球の内部に波長特性が同等の光をそれぞれ入射する複数の第1光ポートと、を含み、
前記積分球はその中心に前記輝度基準面を備える円形平板を含む半球状であり、
前記複数の第1光ポートは、前記積分球の外壁における、前記輝度基準面の中心からの距離が等しく、前記輝度基準面の中心を通る前記積分球の回転対称軸に対して回転対称性を有する複数位置であって、前記円形平板と同心の円を等分する、前記円形平板上の複数位置に設けられる、
ことを特徴とする分光輝度計の校正に用いる基準光源装置。 - 開口である輝度基準面を備える積分球と、
前記積分球の外壁において互いに離間して設けられ、前記積分球の内部に波長特性が同等の光をそれぞれ入射する複数の第1光ポートと、を含み、
前記積分球は1/8球状であり、
前記積分球の外壁は、
前記輝度基準面が配置され、前記輝度基準面の中心を通る前記積分球の回転対称軸に垂直な面と、
1/8球殻部と、
前記回転対称軸に垂直な面と、前記1/8球殻部と、に接する3つの平板部と、
を含み、
前記複数の第1光ポートは、前記3つの平板部において、前記輝度基準面の中心からの距離が等しく、前記回転対称軸に対して回転対称性を有する複数位置に設けられた、
ことを特徴とする分光輝度計の校正に用いる基準光源装置。 - 請求項1に記載の基準光源装置であって、
前記積分球は全球状であり、
前記複数の第1光ポートは、前記積分球の外壁における、前記輝度基準面の中心からの距離が等しく、前記輝度基準面の中心を通る前記積分球の回転対称軸に対して回転対称性を有する複数位置であって、前記回転対称軸に垂直な面で前記積分球を切った円のうち最大半径となる円よりも前記輝度基準面側の円を等分する複数位置に設けられる、
ことを特徴とする基準光源装置。 - 請求項1乃至4のいずれかに記載の基準光源装置であって、
前記積分球の外壁において互いに離間して設けられ、前記積分球の内部に前記複数の第1光ポートとは波長特性の異なる、同等の波長特性の光をそれぞれ入射する複数の第2光ポートをさらに含む、
ことを特徴とする基準光源装置。 - 請求項1乃至5のいずれかに記載の基準光源装置であって、
前記積分球の外壁に設けられ、分光照度を測定する分光照度計が接続される測定ポートをさらに含む、
ことを特徴とする基準光源装置。 - 請求項1乃至6のいずれかに記載の基準光源装置であって、
前記積分球の外壁に設けられるとともに、波長校正用光源が接続され、前記積分球の内部に既知の波長ピークを有する光を入射する波長校正ポートをさらに含む、
ことを特徴とする基準光源装置。 - 請求項1乃至3のいずれかに記載の基準光源装置を用いる分光輝度計の校正方法であって、
校正対象分光輝度計により前記輝度基準面の輝度を測定するステップと、
校正済み分光照度計により前記輝度基準面の照度を測定するステップと、
前記測定される輝度と、前記測定される照度と、前記輝度と前記照度との関係と、に基づいて前記校正対象分光輝度計を校正するステップと、
を含むことを特徴とする校正方法。 - 請求項8に記載の校正方法であって、
前記校正するステップは、前記関係に基づいて前記測定される照度を輝度に変換する、
ことを特徴とする校正方法。 - 請求項8又は9に記載の校正方法であって、
前記関係は、校正済み分光照度計により測定される前記輝度基準面の照度と、校正済み分光輝度計により測定される前記輝度基準面の輝度と、を関連づけることにより得られる、
ことを特徴とする校正方法。 - 請求項8乃至10のいずれかに記載の校正方法において、
前記校正済み分光照度計は、前記校正対象分光輝度計を分光照度計として用いるための光学系を取り付け、分光放射照度標準電球により校正したものである、
ことを特徴とする校正方法。
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CN109506901B (zh) * | 2019-01-21 | 2020-06-16 | 中国科学院合肥物质科学研究院 | 一种光源装置的调试方法 |
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US20180058927A1 (en) | 2018-03-01 |
WO2016151778A1 (ja) | 2016-09-29 |
JPWO2016151778A1 (ja) | 2018-01-11 |
KR102015203B1 (ko) | 2019-08-27 |
KR20170131354A (ko) | 2017-11-29 |
TW201634906A (zh) | 2016-10-01 |
TWI744222B (zh) | 2021-11-01 |
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