LIGHT EMITTING MODULE, AND LIGHTING FIXTURE UNIT

• Main Authors: SUGIMORI SHOGO, MIZUNO MASANORI, MATSUURA TATSUYA, TSUTSUMI YASUAKI, DAICHO HISAYOSHI
• Format: Patent
• Language: English; Japanese
• Published: 22.01.2015
• Subjects: BASIC ELECTRIC ELEMENTS; BLASTING; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; HEATING; LIGHTING; MECHANICAL ENGINEERING; NON-PORTABLE LIGHTING DEVICES; SEMICONDUCTOR DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLEEXTERIORS; WEAPONS

PROBLEM TO BE SOLVED: To improve use efficiency of light by a light wavelength conversion member in a light emitting module.SOLUTION: In a light emitting module 40, a light wavelength conversion ceramic 52 is formed in a sheet shape which converts wavelength of light emitted from a semiconductor light emission element 48 to emit the light. The light wavelength conversion ceramic 52 has a tapered plane 52a which is inclined to approach the semiconductor light emission element 48 as it approaches an edge. The light wavelength conversion ceramic 52 is transparent and is arranged so that a light emission wavelength band after conversion has all ray permeability of 40% or above. 【課題】発光モジュールにおける光波長変換部材による光の利用効率を向上させる。【解決手段】発光モジュール４０において、光波長変換セラミック５２は板状に形成され、半導体発光素子４８が発する光の波長を変換して出射する。光波長変換セラミック５２は、縁部に近づくにしたがって半導体発光素子４８に近づくよう傾斜するテーパー面５２ａを有する。光波長変換セラミック５２は透明であり、変換後の発光波長帯の全光線透過率が４０％以上となるよう設けられる。【選択図】図３