Optical dimension measuring device employing an elongated focuse

Details Optical dimension measuring device employing an elongated focuse Optical dimension measuring device employing an elongated focuse

1976-09-27

1978-02-21

Corbin, John K.

Optics: measuring and testing

Refraction testing

Prism engaging specimen

250560, G01B 1110

Patent

active

040749380

ABSTRACT:
In an optical dimension gauging instrument, commonly referred to as a laser micrometer, particularly for use in measuring the outside dimension of elongated cylindrical objects, such as coated wires or steel tubes, in hostile optical environments, including a laser for generating a beam of collimated light, means for directing the light through a measurement zone, photodetector means responsive to the light passing through the measurement zone, and a mirror mounted for rotation by a motor to cause the beam to be scanned repeatedly across the measurement zone, a beam expander is employed to enlarge the output of the laser to a diameter substantially greater than the maximum dimension of normally anticipated foreign objects which might intercept the beam outside the measurement zone, an anamorphic lens further expands the beam in one plane to a size greater than the size of normally anticipated foreign objects both within and without the measurement zone, and a lens system causes the beam to be focused in the other plane in the measurement zone while the expanded beam is projected through the measurement zone with the long dimension of the beam parallel to the cylindrical axis of the article whose outer dimension is being measured.

REFERENCES:
patent: 3804529 (1974-04-01), Hansler
patent: 4007992 (1977-02-01), Petrohilos et al.

Affiliated with

Also associated with

Rating

Optical dimension measuring device employing an elongated focuse does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Optical dimension measuring device employing an elongated focuse, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical dimension measuring device employing an elongated focuse will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-123308