PURGING APPARATUS FOR PROTECTING OPTICAL DEVICE

摘要

PURPOSE: A purge device for protecting an optical device is provided to efficiently prevent foreign substances from penetrating into the optical device by continuously maintaining the shape of a shield. CONSTITUTION: A purge device for protecting an optical device comprises a base member(110), first and second members(120,130), a first spray line(140), and a second spray line(150). The base member is arranged in front of the optical device. The first member is combined in front of the base member. The second member is arranged in front of the base member. The first spray line is formed between the front side of the first member and the front side of the second member. The second spray line is formed between the rear side of the second member and the base member.