Multiple measuring point configuration for a chromatic point sensor
First Claim
1. A dual beam assembly to be attached to a chromatic confocal point sensor pen which provides a single source beam having a measurement range R in the absence of the dual beam assembly, the dual beam assembly comprising:
- a mounting element configured to be attached to the chromatic confocal point sensor pen; and
a first reflective element,wherein;
the dual beam assembly is configured such that when the mounting element is operably attached to the chromatic confocal point sensor pen;
the first reflective element is positioned in the source beam and divides the source beam into a first measurement beam and a second measurement beam; and
the dual beam assembly outputs the first and second measurement beams to different workpiece portions along first and second measurement axes, and returns workpiece measurement light arising from the first and second measurement beams back to the chromatic confocal point sensor pen; and
the first reflective element comprises one of;
a pattern of reflective regions and transmissive regions that divides the source beam; and
a prismatic element which includes at least one partially reflective and partially transmissive surface that divides the source beam.
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Accused Products
Abstract
A dual beam assembly is provided for attachment to a chromatic confocal point sensor optical pen. The optical pen provides a single source beam having a measurement range R in the absence of the dual beam assembly. The dual beam assembly includes a first reflective element that is positioned in the source beam and divides it into a first measurement beam and a second measurement beam. The dual beam assembly outputs the first and second measurement beams along first and second measurement axes to different workpiece regions and returns workpiece measurement light arising from the first and second measurement beams back to the optical pen. A second reflective element may be included and configured to deflect the second measurement beam along a desired direction. An offset may be provided between the measuring ranges of the first and second measurement beams.
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Citations
24 Claims
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1. A dual beam assembly to be attached to a chromatic confocal point sensor pen which provides a single source beam having a measurement range R in the absence of the dual beam assembly, the dual beam assembly comprising:
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a mounting element configured to be attached to the chromatic confocal point sensor pen; and a first reflective element, wherein; the dual beam assembly is configured such that when the mounting element is operably attached to the chromatic confocal point sensor pen; the first reflective element is positioned in the source beam and divides the source beam into a first measurement beam and a second measurement beam; and the dual beam assembly outputs the first and second measurement beams to different workpiece portions along first and second measurement axes, and returns workpiece measurement light arising from the first and second measurement beams back to the chromatic confocal point sensor pen; and the first reflective element comprises one of; a pattern of reflective regions and transmissive regions that divides the source beam; and a prismatic element which includes at least one partially reflective and partially transmissive surface that divides the source beam. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A dual beam assembly to be attached to a chromatic confocal point sensor pen that provides a single source beam having a measurement range R in the absence of the dual beam assembly, the dual beam assembly comprising:
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a mounting element configured to be attached to the chromatic confocal point sensor pen; and a first reflective element, wherein the dual beam assembly is configured such that when the mounting element is operably attached to the chromatic confocal point sensor pen; the first reflective element is positioned in the source beam and divides the source beam into a first measurement beam and a second measurement beam; and the dual beam assembly outputs the first and second measurement beams to different workpiece portions along first and second measurement axes, and returns workpiece measurement light arising from the first and second measurement beams back to the chromatic confocal point sensor pen, and wherein the second measurement axis is transverse to the first measurement axis.
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24. A dual beam assembly to be attached to a chromatic confocal point sensor pen that provides a single source beam having a measurement range R in the absence of the dual beam assembly, the dual beam assembly comprising:
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a mounting element configured to be attached to the chromatic confocal point sensor pen; a first reflective element; and a second reflective element, wherein the dual beam assembly is configured such that when the mounting element is operably attached to the chromatic confocal point sensor pen; the first reflective element is positioned in the source beam and divides the source beam into a first measurement beam and a second measurement beam; and the dual beam assembly outputs the first and second measurement beams to different workpiece portions along first and second measurement axes, and returns workpiece measurement light arising from the first and second measurement beams back to the chromatic confocal point sensor pen, wherein the second reflective element is configured to deflect the second measurement beam along the second measurement axis, and wherein the dual beam assembly comprises an adjustable mounting arrangement for positioning the second reflective element relative to the first mounting element such that a reflecting plane of the second reflective element is adjustably positioned along an axis of the second measurement beam.
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Specification