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不少人认为电光源就是电灯泡,电灯泡就是家庭、商店和马路照明用的.殊不知电光源不仅用于一般的照明,在工业、农业、交通运输、医学卫生、文化艺术、科学研究以及国防等各方面都要用到它.在工业上,如汽车工业、食品工业等红外光已普遍采用.在农业上,黑光灯用于诱虫,黄光灯用于驱虫,太阳灯用于防止羊癫.在交通运输上,铁路号志、机场照明、航海浮标都需要特殊的光源.在医学卫生上,紫外光用于杀菌,太阳灯及红外光灯用于物理治疗,胃镜、腹腔镜需要特殊的微形灯泡.在文化艺术上,现代的电放映机要用氙气
Many people think that the electric light source is a light bulb, light bulb is the family, shops and street lighting.Not knowing that electric light is not only used for general lighting, in industry, agriculture, transportation, medical and health, arts and culture, science research and national defense In industry, such as the automotive industry, food industry, infrared light has been widely used in agriculture, black light used to attract insects, yellow light used to deworming, sun light used to prevent sheep epilepsy. Traffic, railway signs, airport lighting, navigation buoys require special light sources in the medical and health, ultraviolet light for sterilization, sun lamps and infrared light for physical therapy, gastroscopy, laparoscopy need special micro-shaped In the arts and culture, modern electric projectors use xenon