我的名字凹镜，你们知道我为什么叫这个名字吗？因为我是用球面的内表作反射面的，所以叫做凹面镜，简称凹镜．我的本领可大啦！我能把射向我的平行光线会聚于一点，人们利用我能聚光的性质，制作太阳灶，用会聚的太阳的光和能来烧水、煮饭，既节省燃料，又清洁卫生．我的面积 My name is concave mirror, do you know why I call this name? Because I use the spherical inner surface as a reflective surface, so it is called a concave mirror, referred to as a concave mirror. My skill is great! I can gather the parallel rays of light at me to a point where people use the nature of my ability to gather light to make solar cookers that use the light and energy of the converging sun to boil water and cook rice, saving both fuel and hygiene. My area