| 摘要 |
A lightening device for a clean room is provided to maintain the cleanness of the clean room by replacing a lamp on the ceiling. In a lightening device for a clean room, a body is composed of a lamp(12), and a base panel(15) supporting the lamp(12). A supporting frame(30) is composed of an attaching end(301) of the outer circumference in which a plurality of screw holes(30a) is formed, and a supporting end(302) extended to the inside of the attaching end(301), and is attached to the bottom of the ceiling by inserting a connecting screw to a ceiling panel(C). A cover panel(32) is installed to the top surface of the support end(32) of the supporting frame(30), and maintains sealing with the supporting end(302) by a primary packing member(40). A secondary packing member(42) is installed on the top surface of the cover panel(32). The circumference of the base panel(15) is adhered closely to the secondary packing member(42) so as to maintain sealing inside the base panel(15), and the lamp(12) is replaced by lifting the base panel(15) from the ceiling. |
