# US 2014/0152805 A1 · Orthogonal state measuring device

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- Number: US 2014/0152805 A1
- Document ID: US20140152805A1
- Status: Published application
- Kind: A1
- Application number: 14/091,915
- Filed: 2013-11-27
- Published: 2014-06-05
- Earliest claimed: 2012-11-30
- Assignees: Mitutoyo Corporation
- Applicants: Mitutoyo Corporation
- Inventors: Takeshi SAEKI; Hiroshi SAKAI
- Web page: https://patentgrep.com/patent/US20140152805A1

## CPC

- G01B 11/14: for measuring distance or clearance between spaced objects or spaced apertures (G01B11/26 takes precedence; rangefinders G01C3/00)
- G01B 11/005: {coordinate measuring machines}
- G01B 21/047: {Accessories, e.g. for positioning, for tool-setting, for measuring probes}
- H04N 7/18: Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
- G01B: MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION

## Abstract

An orthogonal state measuring device includes a measurement table and a CCD camera displacing in X, Y, and Z directions relative to the measurement table and measuring a work piece placed on the measurement table. The orthogonal state measuring device further includes a wide angle surveillance camera, a computer main body, and a display. The wide angle surveillance camera captures in one pass an image that is capable of configuring a bird's-eye image of the work piece, the bird's-eye image encompassing an entire field over which the CCD camera is capable of relative displacement. The computer main body generates the bird's-eye image based on the image and defines a position of the CCD camera on the bird's-eye image, then configures navigation maps in which the position of the CCD camera is composited on the bird's-eye image. The display displays the navigation maps.

## Claims

### Claim 1

An orthogonal state measuring device comprising:
a measurement table;
a stylus head configured to be displaced in X, Y, and Z directions relative to the measurement table and further configured to measure a work piece to be measured that is placed on the measurement table;
a wide angle surveillance camera configured to capture in one pass an image that is arrangeable into a bird's-eye image of the work piece, the bird's-eye image encompassing an entire field over which the stylus head is capable of relative displacement;
a processor configured to:
generate the bird's-eye image based on the image;
define a position of the stylus head on the bird's-eye image; and
generate a navigation map in which the position of the stylus head is composited with the bird's-eye image; and
a display configured to display the navigation map.

### Claim 2 (depends on 1)

The orthogonal state measuring device according to claim 1, wherein CAD data of the work piece is composited with the navigation map.

### Claim 3 (depends on 1)

The orthogonal state measuring device according claim 1, wherein a region where measurement of the work piece by the stylus head is complete is composited with the navigation map.

### Claim 4 (depends on 2)

The orthogonal state measuring device according claim 2, wherein a region where measurement of the work piece by the stylus head is complete is composited with the navigation map.