What does exposure mean?

An instrument for measuring light intensity. It is used to determine the light intensity and exposure time of the camera during photography.

Word decomposition

Explanation of exposure: exposure (strong sunlight). One exposure leads to ten colds. Exposure [exposure] makes photosensitive paper or photographic film sensitive. Radical: days; Interpretation of the lamp table "Book Essentials": "The lamp is four tables, and the grid is up and down." Later, because of the "light table", it was widely circulated and extended in all directions. Wang Qi's Inscription of Toutuo Temple in the Southern Qi Dynasty: "The virtue of the ancestor Wu, advocating strict match; Ge Tianguang shows merit and the red flag is happy. "