An object sensing device and an object sensing method in which a threshold does not have to be adjusted or updated even under the influence of external light are provided. The object sensing device includes a light source (20;30;90) for irradiating a sensi...

An object sensor and object sensing method that sense the status of the sensing surface by detecting a dynamic impact of a rain drop, not by comparing the signal with a reference value. An object sensor sensing the status of a sensing surface by detecting ...