Patent ID: 7521870
Filing Date: 2009-04-21
Classification: H01J

Abstract:
1. A luminous container comprising an electrode supporting member comprising a pipe-shaped metal piece, a tube-shaped outer supporting body comprising a brittle material, and a pipe-shaped inner supporting body comprising a brittle material and provided inside of said outer supporting body, said piped-shaped metal piece comprising a clamped portion provided between and pressed with said outer and inner supporting bodies and a non-clamped portion not clamped with said outer and inner supporting bodies, wherein a stress generated along an interface where said clamped portion and each of said outer and inner supporting bodies contact each other is relaxed by deformation of said clamped portion of said pipe-shaped metal piece, and wherein said outer supporting body and said clamped portion directly contact each other, said clamped portion and said inner supporting body directly contact each other and said outer supporting body and inner supporting body directly contact each other throughout an entire circumference of the inner supporting body.