PROBLEM TO BE SOLVED: To provide an algae culture lighting device which has an inexpensive and simple mechanism, and small impact of heat given to algae to be cultured, is capable of reliably controlling the temperature of culture solution efficiently and accurately, simultaneously improving reproducibility, reliability, uniformity, and convenience of culture, and is also excellent in durability, safety and energy saving performance.SOLUTION: An algae culture lighting device comprises: a water tank 3 having a bottom in which a top surface is open and light irradiation means (LED lighting unit 50) which is provided along an outside of a side surface of the water tank 3 in a standing manner, and emits light toward a culture bottle B that cultures algae. In the device, temperature adjustment means (heater 60 for water tank) for adjusting the temperature of liquid stored in the water tank 3 is also provided. While the temperature of the culture bottle B immersed in the liquid in the water tank 3 is adjusted by adjusting the temperature of the liquid in the water tank 3 by the temperature adjustment means, the light irradiation means irradiates the culture bottle B with light through the water tank 3 from an adjacent position of the water tank 3.COPYRIGHT: (C)2015,JPO&INPIT【課題】 安価で簡潔な機構により、培養する藻類に与える熱の影響が小さく、培養液の温度管理を効率的に精度よく確実に行うことができるとともに、同時に培養の再現性、確実性、均一性、利便性を向上させることができ、耐久性、安全性、省エネルギー性にも優れた藻類培養照明装置を提供する。【解決手段】 上面が開口した有底の水槽3と、この水槽3の側面外側に沿って立設され、藻類を培養する培養瓶Bに向け光を照射する光照射手段(LED照明ユニット50)と、を備えた藻類培養照明装置において、水槽3内に溜めた液体の温度を調節する温度調節手段(水槽用ヒータ60)を設け、この温度調節手段により水槽3内の液体の温度を調節することにより、水槽3内の液体に浸漬した培養瓶Bの温度を調節しつつ、前記光照射手段により水槽3の近接位置から水槽3越に培養瓶Bに光を照射するようにする。【選択図】 図1
