noun
pinhole camera
A simple camera without a lens, using a tiny hole to project an image. Often used in educational or artistic contexts.
理科の授業で針穴写真機を作った。
We made a pinhole camera in science class.
Standard kanji spelling for pinhole camera.
Variant using 孔 (hole) instead of 穴; less common but still used.
Compound of 針穴 (pinhole) and 写真機 (camera). The term is a direct description of the device's principle.