Focused, single strand, optical fiber rotational alignment image

Details Focused, single strand, optical fiber rotational alignment image Focused, single strand, optical fiber rotational alignment image

1980-05-30

1982-02-09

Rosenberger, R. A.

Optics: measuring and testing

Angle measuring or angular axial alignment

Sides of angle or axes being aligned transverse to optical...

350 15, 350 9610, G01B 1126

Patent

active

043147623

ABSTRACT:
This system permits the detection of rotational mis-alignment (i.e., twist) of two initially aligned, but separated, members. The two aligned members are linked by a single strand of focused optical fiber which, in combination with other co-acting components of the system, allows the user to detect rotational mis-alignment (i.e., twist) of the members, based upon the phenomenon that a single strand of focused optical fiber is functionally capable of conveying a formed, completed, and real image from one end of the fiber to the other end. Accordingly, one end of the fiber is attached to one member where an image is formed, and that formed image is transmitted to the other end which is attached to the other member where the transmitted image is sensed and compared to what the image should be if the members are still rotationally aligned. If the image that is received at the other end is positionally different (i.e., twisted), then the members are rotationally mis-aligned.

REFERENCES:
patent: 3207904 (1965-09-01), Heinz
patent: 3669549 (1972-06-01), Besson et al.
patent: 3801181 (1974-04-01), Kitano et al.
patent: 3990796 (1976-11-01), Foltz
Uchida et al. "Optical Characteristics of a Light-Focusing Fiber Guide and Its Applications," IEEE Journal of Quantum Electronics, vol. QE-6, No. 10, (Oct. 1970, pp. 606-612).

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