Futaba Corporation

Shogo Ishige

Yukio Ogawa

Yoshihisa Yonezawa

An electron device such as a fluorescent display tube is provided, wherein a simple ring-less getter can be simply fixed and arranged with a large degree of freedom. The ring-less getter is securely fixed to the inner surface of the glass anode substrate using laser beams. The laser beam is irradiated onto the ring-less getter from outside the anode substrate. Thus, the laser beam passes through the anode substrate thus heating and melting the ring-less getter. The corresponding inner surface of the anode substrate is melted through the heating. In cooling, the portion where the ring-less getter and the anode substrate are in a molten state is solidified, so that the ring-less getter is bonded to the anode substrate. The ring-less getter is shaped arbitrarily through press-working a getter material.

Electron device with ring-less getter, method for affixing ring-less getter, and method for activating the same

In a method for manufacturing an electron tube including a front substrate and a back substrate, a wiring and an electrode are formed on the front substrate and/or the back substrate. A component is mounted on the front substrate and/or the back substrate. A ring-less getter is mounted on at least one of the front substrate, the back substrate and the component. A vessel is assembled and sealed so that the front substrate faces the back substrate. A light is irradiated on the ring-less getter from outside of the sealed vessel, thereby activating the ring-less getter.

Electron tube and a method for manufacturing same

A fluorescent luminous tube is provided that has a getter mirror film formed in an arbitrary shape by illuminating a laser beam onto a getter. In order to form the getter film, the rectangular ring-less gettermounted on the anode substrateis irradiated with the laser beam L from the outside of the front substrateand thus is evaporated. In this process, when the illumination spot of the laser beam L is moved along the scanning line, the rectangular getter mirror filmis formed around the scanning line. The burnt region, which has the same shape and size as those of the scanning line, is formed using the laser beam L.

Growing community of inventors

Mobara, Japan

Shogo Ishige