Optics: measuring and testing – By particle light scattering – With photocell detection
Patent
1981-04-06
1983-07-12
Arnold, Bruce Y.
Optics: measuring and testing
By particle light scattering
With photocell detection
350 36, G01B 925
Patent
active
043927459
ABSTRACT:
An adjustable camera is operative to perform interferometric analysis of areas on the surface of an object such as a vehicle tire using light from a coherent source. The camera mechanism includes vertical guides projecting upwardly from a support moveable in the horizontal plane along the base. A slide is adjustable vertically along the guides and carries a camera housing that is adjustable relative to the slide about a horizontal pivot axis. A coherent light source is fixed relative to the base and projects its beam parallel to the adjustment of the guide support. An optical element on the guide support projects the beam upwardly parallel to the guides to a mirror which reflects the beam horizontally about the pivot axis of the housing. A beam splitter divides the beams into an object beam and a reference beam. The object beam is projected out of the housing to illuminate a surface of the tire and cause light to be reflected to a film section supported in the housing. The camera housing may be moved horizontally and vertically and tilted to various angles to analyze various sections of the tire, without impairing the required positional relationship to the coherent light source.
REFERENCES:
patent: 3644047 (1972-02-01), Brown et al.
patent: 3883215 (1975-05-01), Kurtz
patent: 3934461 (1976-01-01), Heflinger et al.
patent: 4139302 (1979-02-01), Hung et al.
patent: 4225237 (1980-09-01), Rottenkolber
patent: 4225238 (1980-09-01), Rottenkolber
patent: 4234256 (1980-11-01), Yeager
Wright Forrest S.
Zimmerman Ted R.
Arnold Bruce Y.
Industrial Holographics, Inc.
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