ELECTRODELESS DISCHARGE LAMP AND ADHESIVE COMPOSITION USED IN THEREIN

摘要

PROBLEM TO BE SOLVED: To suppress the generation of bubbles in an adhesive layer in a tube end part. ;SOLUTION: This electrodeless discharge lamp has an electrode member 13 formed by arranging a plurality of strip metal electrodes 17, each having a connecting terminal 16 on one side of a transparent film 14 through an adhesive layer 15, and a transparent cylindrical body 12, and the strip metal electrode 17 is wound on the outer circumference of the transparent cylindrical body 12. The adhesive layer 15 is formed with an adhesive sheet on which the adhesive layer 15 made of an adhesive composition is formed, and its high temperature shear holding force is adjusted to 0.9-5 kg. The high temperature shear holding force is defined as such force that the adhesive sheet is bonded to one end of a glass plate, so that an adhesive area is 10×10 mm and the end protrudes from the glass plate, the glass plate is put in a thermostatic chamber set at 100°C so as to face the adhesive sheet upward, and in the thermostatic chamber, the adhesive sheet is pulled at a rate of pulling 1 mm/min. in the shearing direction with respect to the glass plate and force in the maximum shearing force is obtained.;COPYRIGHT: (C)1999,JPO