论文部分内容阅读
小孔成像是光的直线传播规律的重要例证。制作材料:胶合板、铁皮饮料盒、Ф1mm铜丝、输液器包装袋、螺钉、胶水、胶带等。将5mm厚胶合板裁好,用胶水粘牢,内壁用墨水涂黑。前端盖中心裁出Ф1.5cm圆孔透光,后端盖中心裁出Ф3cm圆孔作观测窗。将一次性输液器包装袋用胶带粘在内筒前端并绷紧。取长30cm、宽1cm的白纸条,自右向左依次划上0、1、2……30cm的刻线,贴在内筒左外侧。将铁皮饮料盒展开,裁成Ф12cm的圆片,
Hole imaging is an important example of the law of linear propagation of light. Production materials: plywood, tin drinks boxes, Ф1mm copper wire, infusion bags, screws, glue, tape and so on. The 5mm thick plywood cut, glued with glue, the inner wall with black ink. The center of the front cover is cut out with a round hole of Φ1.5cm, the center of the back cover is cut out with a φ3cm round hole for the observation window. The disposable infusion bag is taped to the front of the inner tube with tape and taut. Take the length of 30cm, 1cm wide strip of white paper, from right to left in turn draw 0,1,2 ... 30cm engraved line, attached to the left side of the inner cylinder. The tin drink box to start, cut into Ф12cm wafer,