SPATIAL OPTICAL TRANSMISSION DEVICE

PROBLEM TO BE SOLVED: To provide a spatial optical transmission device capable of making a transmission distance long.SOLUTION: A spatial optical transmission device 10 includes a light-emitting part 20 for converting an electric signal to an optical signal, and transmits information through a space by emitting the optical signal converted by the light-emitting part 20 into the space. The light-emitting part 20 includes a laser element 20a for emitting blue laser light and a yellow phosphor body 20b, transmits information through a space by emitting an optical signal of white laser light containing the information into the space, and also serves as a floodlight projector for projecting light through the space.SELECTED DRAWING: Figure 1 【課題】伝送距離の長距離化が可能な空間光伝送装置を提供する。【解決手段】電気信号を光信号に変換する発光部２０を備え、発光部２０が変換した光信号を空間に放出して空間を通じて情報を送信する空間光伝送装置１０において、発光部２０は、青色レーザ光を発光するレーザ素子２０ａ及び黄色蛍光体２０ｂを有し、情報を含んだ白色のレーザ光からなる光信号を空間に放出して空間を通じて情報を送信するとともに、空間を投光する投光器を兼ねる。【選択図】図１