PROBLEM TO BE SOLVED: To provide a light irradiation apparatus for adjusting hair growth which carries out medical treatments safely without using an eye mask and shows excellent workability.SOLUTION: The light irradiation apparatus for adjusting hair growth is equipped with a light emitting part 1 for emitting light to adjust the growth of body hair of a skin M subjected to a treatment and a light shielding part 2 for blocking the leakage of light, emitted from the light emitting part 1, to the outside. The end of the light shielding part 2 is formed as a skin abutting surface 21 where the skin M subjected to the treatment abuts, and a diffusion light shielding part 3 provided in a continuity from the skin abutting surface 21 outward in a flange shape is provided.COPYRIGHT: (C)2010,JPO&INPIT【課題】 アイマスクを使用せずとも安全に施療できて作業性の非常に良好な発毛調節光照射装置を提供する。【解決手段】 処理対象の皮膚Mの体毛の成長を調節するための光を発する発光部1と、発光部1から照射される光の外部への漏光を遮る遮光部2と、を備える発毛調節光照射装置であって、該遮光部2の先端を処理対象の皮膚Mが当接する皮膚当接面21とし、該皮膚当接面21から外方に向かってフランジ状に連設して設置する拡散光遮光部3を設けた。【選択図】図1
