Welding monitoring apparatus

Details Welding monitoring apparatus Welding monitoring apparatus

1987-03-16

1988-03-08

Shaw, Clifford C.

Electric heating

Metal heating

By arc

219136, 219147, 350 9625, 350362, B23K 932

Patent

active

047300965

ABSTRACT:
An apparatus for monitoring the welding state or the like of a welding part luminous at a high luminance wherein a light attenuating device is arranged near at least one end surface of an image guide arranged at one end in the focal plane of an image forming objective and transmitting an optical image to the other end side so that even an image having a high luminance part may be monitored without glaring.

REFERENCES:
patent: 3666949 (1972-05-01), DeFalco et al.
patent: 4039803 (1977-08-01), Harsch
patent: 4153333 (1979-05-01), Harada et al.
patent: 4225771 (1980-09-01), Justice et al.
patent: 4450339 (1984-05-01), Corby, Jr.
patent: 4666245 (1987-05-01), Pointer

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