PURPOSE: To prevent a luminous pipe from being cracked without removing a liquid drip preventive plate by forming a recessed section in the lower end open section of the mounting hole of a reflecting mirror, and thereby providing the recessed section with a plate cover made of heat resistant non-organic material.
CONSTITUTION: The back face of a reflecting mirror 1 is provided with a cylindrical section 4 having a mounting hole 5; a lower end open section 6 smaller than the cylindrical section 4 is formed in its back face wall, and its back face section is provided with a recessed section 7. A tungsten halogen lamp 9 is inserted into the mirror 1, and a liquid drip preventive cover 8 made of heat resistant non-organic material is put on the recessed section 7 of the open section 6. And next, the terminal pins 12a and 12b of the lamp 9 is inserted therein, and heat resistant adhesives 14 are filled in a gap between a sealing section 11 and the inner wall surface of the cylindrical section 4, so that the lamp 9 is fixed onto the mirror 1. Thus, the provision of the recessed section in the lower end open section while being covered makes it unnecessary to remove liquid drip preventive paper, and prevents the sealing section of a luminous pipe from being cracked, and also prevents the lamp from being not lighted.
SUGIMOTO HIROSHI
FUJIWARA TAKASHI
