Tokyo Shibaura Denki Kabushiki Kaisha

Kabushiki Kaisha Toshiba

Shigeru Sudo

Masaaki Yada

Masahiko Hirose

Hitoshi Imamura

A method for manufacturing a luminous tube for discharge lamp including sealing, in a closed container having a stream of a desired gas introduced therein, components of a luminous tube by means of the photo energy of a laser light such that the desired gas, at a predetermined pressure, is sealed within the luminous tube.

Method for manufacturing a luminous tube for discharge lamp

A heating device comprises a laser oscillator which emits a laser beam, a reflector which guides the laser beam from the laser oscillator to an object a support pole for supporting the reflector to pivotally oscillate about an axis substantially perpendicular to an axis of the object, and a pair of electromagnets for oscillating the reflector between a maximum tilted position in one direction and a maximum tilted position in an opposite direction and for stopping the reflector at both maximum tilted positions for a predetermined period. The laser beam which is incident on the reflector reciprocally scans the object in the axial direction of the predetermined range thereof by the oscillation of the reflector.

Heating device

A method of sealing an aperture formed in a discharge tube using a laser beam. A tube having the aperture to be hermetically sealed is placed in a vessel having a window which transmits a laser beam. The aperture is covered with a blockade member. The blockade member is irradiated with the laser beam in order to melt the blockade member and seal the aperture.

Growing community of inventors

Tokyo, Japan

Shigeru Sudo