Gas laser tube
AssigneeNippon Electric Co., Ltd.
InventorNoboru Taguchi
Life of this patent
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Abstract
In a gas laser tube including a laser capillary tube having one fixed end secured to the envelope surrounding the capillary tube and one free end. A support structure for the free end comprising a discharge diverting tube extending from the envelope toward and overlapping the free end of the laser capillary tube and a coil spring interposed between the free end portion of the laser capillary tube and the inner wall of the discharge diverting tube. The free end portion of the capillary tube is supported resiliently by the coil spring and the capillary tube is kept straight without bending or vibrating while absorbing the elongation of the capillary tube caused by thermal expansion.
Claims9
A gas laser tube comprising:
- an envelope containing an active gaseous medium;
- a laser capillary tube having one end connected to an end wall of said envelope;
- a protrusion tube coaxially extending from an opposite end wall of said envelope opposite the end wall where the capillary tube is fixed, said protrusion tube overlapping a free end of said laser capillary tube;
- and
- a coil spring member interposed between said free end of said laser capillary tube and said protrusion tube so as to make contact with both of said tubes so as to support said free end of said laser capillary tube.
Dependencies are inferred from the claim text.