This optical experiment box is a school science kit designed for junior high physics and optics lessons, allowing students to investigate how light behaves in real setups. Its organized layout facilitates moving from principle to observation, useful in classroom labs and guided demonstrations. The testing stand set includes a green-hued lab stand with paired metal rails, adjustable holders, and a ruler scale along the front side for clear reference points. The main body is mainly green with transparent parts, while included optical plates and screens in brown, black, and white support different experiment steps and visual comparisons. As a lens experiment kit, it includes a guide booklet, semicircular measuring board, transparent lens tray, light-source modules, lens holders, triangular supports, and a tiny opening plate. This combination allows users to set up lens and tiny opening imaging tasks in a logical sequence, making it practical for teaching and structured science exploration. The tiny opening imaging set is well suited to showing image formation, light trajectories, and focus changes in a direct, clearly visible format, helping students connect textbook concepts with what appears on the screen during experiments.
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