Flash light discharge tube and strobe device provided with same
AssigneePanasonic Intellectual Property Management Co., Ltd.
InventorRie YAMAMOTO
Life of this patent
Estimating the term…
Abstract
A flash discharge tube includes a cylindrical glass bulb filled with a rare gas; a pair of main electrodes sealed to both ends of the glass bulb via bead glasses; rough surfaces formed at least in the regions to which the bead glasses are welded, the regions being on the outer circumferential surfaces of the pair of main electrodes; and hard microparticles adhered to the rough surfaces. The hard microparticles are embedded in the rough surfaces. This increases the connection strength between the bead glasses and the pair of main electrodes, thereby ensuring the sealing performance between the bead glasses and the pair of main electrodes.
Claims5
A flash discharge tube comprising:
- a cylindrical glass bulb filled with a rare gas;
- a pair of main electrodes sealed to both ends of the glass bulb via bead glasses;
- rough surfaces formed at least in regions to which the bead glasses are welded, the regions being on outer circumferential surfaces of the pair of main electrodes;
- and hard microparticles adhered to the rough surfaces,
- wherein the hard microparticles are embedded in the rough surfaces.
Dependencies are inferred from the claim text.