METHOD FOR VISUALLY RECOGNIZING DROPLET, DROPLET DISCHARGE HEAD INSPECTION DEVICE, AND DROPLET DISCHARGE DEVICE FOR EASILY RECOGNIZING FLYING DROPLET

摘要

PURPOSE: A method for visually recognizing a droplet, a droplet discharge head inspection device, and a droplet discharge device are provided to easily recognize flying droplet by using a discharging head. CONSTITUTION: A method of visually recognizing a droplet is provided by discharging droplet through a nozzle hole of a droplet discharging head. Flat shaped laser beam is formed by allowing laser beam to pass through a slit(41). Flying droplet is visually recognized by irradiating the droplet. The laser beam is transmitted through a condensed lens(5). A droplet discharge head inspection device includes a laser beam irradiating unit for irradiating laser beam and a flat shape member having the slit(41) allowing the laser beam to pass through the slit(41).