Beam alignment tool and method

Details Beam alignment tool and method Beam alignment tool and method

1980-06-18

1984-06-05

Punter, William H.

Optics: measuring and testing

Lamp beam direction or pattern

356138, 356154, G01B 1126

Patent

active

044525320

ABSTRACT:
A method and apparatus for adjusting the alignment of a beam of radiant energy relative to a structure. A target is placed in the path of the beam, with an opaque reticle disposed in front of the target in the path of the beam in predetermined alignment with the structure. The beam impinges on the target to form a beam image and the reticle casts a shadow within the beam image. The positional relationship between the shadow and the outline of the beam image will be altered by any misalignment between the beam and the structure. The target is preferably chosen so that it will be permanently altered by the radiant energy of the beam, and the positional relationship between the shadow and the outline is preferably observed after exposure of the target to the beam.

REFERENCES:
patent: 1911645 (1933-05-01), Peterson
patent: 3915575 (1975-10-01), Sick
patent: 3974374 (1976-08-01), Inoue
Anninger et al., "Laser System for Determining Variations in Elevation Along a Reference Line" Western Electric Tech. DIG. #26, 4-1972, pp. 1-2.

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