Split-image optical system for the observation of surface struct

Details Split-image optical system for the observation of surface struct Split-image optical system for the observation of surface struct

1988-01-26

1989-05-02

Rosenberger, Richard A.

Optics: measuring and testing

Inspection of flaws or impurities

Bore inspection

356376, G01B 1130, G01N 2188, G02B 2324

Patent

active

048263176

ABSTRACT:
For observation of structures, for example of welding seams, within a cavity body, an optical system is provided, which is adapted to be introduced into the cavity body through an opening of reduced diameter. This optical system comprises two boroscopes having parallel shafts and bent off heads for illumination and observation. In a first position the heads are located antiparallel side-by-side and permit the introduction of the optical system through the opening. In a second position the heads are spread and form a base distance in the hollow body to illuminated the structure to be examined at an angle essentially different from the angle at which this structure is observed.

REFERENCES:
patent: 3817619 (1974-06-01), Kawahara
patent: 4271829 (1981-06-01), Heckele

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