Patent US3000307A successfully refreshed from Google Patents.
Patent US5035503A successfully refreshed from Google Patents.
US5035503A
Expired / Lapsed
US
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Electro optically corrected coordinate measuring machine
Assignee: Individual
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Filing: 1990-12-10
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Granted: 1991-07-30
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Expires: 2010-12-10
Abstract
Abstract A device for electro-optical monitoring of angular and lateral deflections of a moving carriage relative to a stationary track along which it moves, including a transmitting unit mounted on the moving carriage and including a light source illuminating a pattern, a receiving unit mounted on the track in light receiving relationship with the transmitting unit and including optical sensor apparatus for sensing the light transmitted from the transmitting unit and providing an output signal corresponding thereto, and a micro computer arranged to receive the output signal from the receiving unit and to determine the angular and lateral deflection of the carriage utilizing the information derived from the signal.
Inventors
- 👤 Yaacov Sadeh
- 👤 Yaacov Makover
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:53
CPC Classifications
G; G01; G01B; G01B5/00; G01B5/0002; G01B5/0009; G01B11/00; G01B11/30; G01B11/306; G01B21/00; G01B21/02; G01B21/04
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
130 words
A device for electro-optical monitoring of angular deflections of a moving carriage relative to a stationary track along which it moves, comprising: a transmitting unit mounted on the moving carriage and comprising a light source for illuminating a two-dimensional pattern, said pattern having a configuration such that rotation of the pattern around its center can be detected; a receiving unit mounted on the track in light receiving relationship with the transmitting unit and comprising an optical sensor means for sensing the shift and roll of the illuminated pattern transmitted from said transmitting unit and providing an output signal corresponding thereto; and micro computer means arranged to receive the output signal from said receiving unit and utilize the information derived from said signal to determine the angular deflection of said carriage.
Claim 2
Independent Claim
130 words
A device for electro-optical monitoring of angular deflections of a moving carriage relative to a stationary track along which it moves, comprising: a transmitting unit mounted on the moving carriage and comprising a light source for illuminating a two-dimensional pattern, said pattern having a configuration such that rotation of the pattern around its center can be detected; a receiving unit mounted on the track in light receiving relationship with the transmitting unit and comprising an optical sensor means for sensing the shift and roll of the illuminated pattern transmitted from said transmitting unit and providing an output signal corresponding thereto; and micro computer means arranged to receive the output signal from said receiving unit and utilize the information derived from said signal to determine the angular deflection of said carriage.
Claim 3
Dependent Claim
120 words
A device according to claim 1 wherein said transmitting unit further comprises: a mono-chromatic light source including a light directing reflector and lens assembly; a lens having a narrow band filter as front exit window; said two-dimensional pattern being of saw-tooth configuration and disposed in the focal plane of said lens and arranged to be illuminated by said light source; and said receiving unit further comprises: a narrow band filter as input window; a lens adjacent said filter; an optical position sensor means disposed in the focal plane of said lens; said micro computer being arranged to control said light source and to evaluate the position deflection of said pattern on the position sensor means for determination of angular deflections.
Claim 4
Dependent Claim
16 words
A device according to claim 2 wherein said optical position sensor means comprises a line scanner.
Claim 5
Dependent Claim
16 words
A device according to claim 2 wherein said optical position sensor means comprises an area scanner.
Claim 6
Dependent Claim
135 words
A device according to claim 1 further comprising means for monitoring both lateral and vertical deviations of said carriage comprising: a second two-dimensional pattern mounted in said transmitting unit; a second light source illuminating said second two-dimensional pattern; a movable lens assembly arranged to receive the light transmitted from said second light source through said second two-dimensional pattern and transmit it to said optical sensor means; means for merging the optical axis of said movable lens onto the optical axis of the optical sensor means; said optical sensor means arranged to provide a second output signal corresponding to the light transmitted by said movable lens assembly; and said micro computer means being arranged to receive the second output signal from said receiving unit and to determine from said signal the lateral deflection of said carriage.
Claim 7
Dependent Claim
130 words
A device according to claim 2 further comprising means for monitoring both lateral and vertical deviations of said carriage comprising: a second light source illuminating a pattern of saw-tooth configuration mounted in said transmitting unit; a movable lens assembly arranged to receive the light transmitted from said second light source and transmit it to said position sensor means; means for merging the optical axis of said movable lens onto the optical axis of the optical sensor means; said optical sensor means arranged to provide a second output signal corresponding to the light transmitted by said movable lens assembly; and said micro computer means being arranged to receive the second output signal from said receiving unit and to determine both the lateral and vertical deflection of said carriage from said signal.
Claim 8
Dependent Claim
121 words
A device according to claim 6 wherein said second light source comprises: a mono-chromatic light source including a light directing reflector and lens assembly; said saw-tooth pattern being arranged to be illuminated by said second light source; a narrow band filter as front exit window; and a movable lens assembly in the path of light emitted by said second light source comprising: a narrow band filter as input window; a zoom lens assembly including a motor for rotating the zoom mechanism and a position encoder for determining the zoom condition adjacent said filter; said merging means comprising: a beam folding and splitting prism which merges the optical axis of the zoom lens onto the optical axis of said optical sensor means.
Claim 9
Dependent Claim
55 words
A coordinate measuring system wherein there is provided: a cartesian manipulator having at least one moving axis; means as defined in claim 1 for monitoring the angular deflections of said moving axis and generating output signals corresponding thereto; micro computer means for adjusting the position analysis of said axis in accordance with said output signals.
Claim 10
Dependent Claim
70 words
A device according to claim 8 wherein said cartesian manipulator comprises a two-dimensional cartesian manipulator comprising two mutually perpendicularly moving axes; and said means for monitoring comprises means for monitoring the angular and lateral deflections of each of said moving axes and generating output signals corresponding thereto; and said micro computer means is operative to adjust the position analysis of each of said axes in accordance with said output signals.
Claim 11
Dependent Claim
71 words
A device according to claim 8 wherein said cartesian manipulator comprises a three-dimensional cartesian manipulator comprising three mutually perpendicular moving axes; and said means for monitoring comprises separate means for monitoring the angular and lateral deflections of each of said moving axes and generating output signals corresponding thereto; and said micro computer means is operative to adjust the position analysis of each of said axes in accordance with said output signals.
Claim 12
Independent Claim
205 words
A device for electro-optical monitoring of angular deflections of a moving carriage relative to a stationary track along which it moves, comprising: a transmitting unit mounted on the moving carriage having a light source illuminating a pattern means; said light source being mono-chromatic and having a light directing reflector and lens assembly; said lens assembly having a narrow band filter as front exit window; said pattern means having a saw-tooth transparent accurate pattern disposed in the focal plane of said lens for illumination by said light source; a receiving unit mounted on the track in light receiving relationship with the transmitting unit, said receiving unit having optical sensor means having a narrow band filter as an input window for sensing the orientation of the illuminated pattern transmitted from said transmitting unit and providing an output signal corresponding thereto; micro computer means arranged to receive the output signal from said receiving unit and to determine the angular deflection of said carriage utilizing the information derived from said signal in the form of the saw-tooth pattern's configuration; said micro computer also being arranged to control said light source and to evaluate the position deflection of said pattern on the position sensor means for determination of angular deflections.
Claim 13
Independent Claim
205 words
A device for electro-optical monitoring of angular deflections of a moving carriage relative to a stationary track along which it moves, comprising: a transmitting unit mounted on the moving carriage having a light source illuminating a pattern means; said light source being mono-chromatic and having a light directing reflector and lens assembly; said lens assembly having a narrow band filter as front exit window; said pattern means having a saw-tooth transparent accurate pattern disposed in the focal plane of said lens for illumination by said light source; a receiving unit mounted on the track in light receiving relationship with the transmitting unit, said receiving unit having optical sensor means having a narrow band filter as an input window for sensing the orientation of the illuminated pattern transmitted from said transmitting unit and providing an output signal corresponding thereto; micro computer means arranged to receive the output signal from said receiving unit and to determine the angular deflection of said carriage utilizing the information derived from said signal in the form of the saw-tooth pattern's configuration; said micro computer also being arranged to control said light source and to evaluate the position deflection of said pattern on the position sensor means for determination of angular deflections.
Claim 14
Independent Claim
191 words
A device for electro-optical monitoring of angular deflections of a moving carriage relative to a stationary track along which it moves, comprising: a transmitting unit mounted on the moving carriage having: a light source including a light directing reflector and lens assembly; a transparent accurate pattern arranged to be illuminated by said light source, said pattern being of a configuration such that rotation of the pattern around its center can be detected; and a lens arranged such that said pattern is disposed in the focal plane of said lens; a receiving unit mounted on the track in light receiving relationship with the transmitting unit having: a lens; optical position sensor means disposed in the focal plane of said lens for sensing the light pattern transmitted from said transmitting unit and providing an output signal corresponding thereto; and micro computer means arranged to control said light source, to receive the output signal from said receiving unit, and to evaluate the position deflection of said pattern on the position sensor means for determination of angular deflections and for analyzing the true position of said carriage utilizing the information derived from said output signal.
Claim 15
Independent Claim
191 words
A device for electro-optical monitoring of angular deflections of a moving carriage relative to a stationary track along which it moves, comprising: a transmitting unit mounted on the moving carriage having: a light source including a light directing reflector and lens assembly; a transparent accurate pattern arranged to be illuminated by said light source, said pattern being of a configuration such that rotation of the pattern around its center can be detected; and a lens arranged such that said pattern is disposed in the focal plane of said lens; a receiving unit mounted on the track in light receiving relationship with the transmitting unit having: a lens; optical position sensor means disposed in the focal plane of said lens for sensing the light pattern transmitted from said transmitting unit and providing an output signal corresponding thereto; and micro computer means arranged to control said light source, to receive the output signal from said receiving unit, and to evaluate the position deflection of said pattern on the position sensor means for determination of angular deflections and for analyzing the true position of said carriage utilizing the information derived from said output signal.
Claim 16
Dependent Claim
15 words
A device according to claim 12 wherein said light source comprises a mono-chromatic light source.
Claim 17
Dependent Claim
40 words
A device according to claim 12 wherein the lens on said transmitting unit has a narrow band filter as front exit window, and a narrow band filter is disposed adjacent the lens on said receiving unit as an input window.
Claim 18
Dependent Claim
27 words
A device according to claim 12 wherein said optical position sensor means comprises a one-dimensional matrix of photo-sensitive elements set in geometrical precision, one relative to another.
Claim 19
Dependent Claim
16 words
A device according to claim 12 wherein said optical position sensor means comprises a line scanner.
Claim 20
Dependent Claim
16 words
A device according to claim 12 wherein said optical position sensor means comprises an area scanner.
Claim 21
Dependent Claim
156 words
A device according to claim 12 further comprising means for monitoring both lateral and vertical deviations of said carriage which comprises: a second accurate pattern means, said pattern being of a configuration such that rotation of the pattern around its center can be detected; a second light source mounted in said transmitting unit for illuminating said second accurate pattern; a movable lens assembly arranged to receive the light pattern transmitted from said second light source and transmit it to said position sensor means; means for merging the optical axis of said movable lens onto the optical axis of the optical sensor means; said optical sensor means being arranged to provide a second output signal corresponding to the light transmitted by said movable lens assembly; and said micro computer means being arranged to receive the second output signal from said receiving unit and to determine from said signal the lateral deflection of said carriage from said signal.
Claim 22
Dependent Claim
32 words
A device according to claim 18 and wherein said second light source comprises a mono-chromatic light source and wherein said second light source has a narrow band filter as front exit window.
Claim 23
Dependent Claim
28 words
A device according to claim 12 wherein said optical position sensor means comprises a two-dimensional matrix of photo-sensitive elements, each set in precise geometrical relationship to the other.
Claim 24
Independent Claim
186 words
A device for electro-optical monitoring of angular deflections of a moving carriage relative to a stationary track along which it moves, comprising: a first saw-tooth pattern means; a first transmitting unit mounted on the moving carriage and comprising a first light source illuminating said first pattern means; a first receiving unit mounted on the track in light receiving relationship with the first transmitting unit; a second saw-tooth pattern means; a second transmitting unit mounted on the moving carriage and comprising a second light source illuminating said second pattern means; a second receiving unit mounted on the track in light receiving relationship with the second transmitting unit; means for merging the light from said first and second transmitting units and focusing the light from both transmitting units on an optical sensor means for sensing the orientation of the illuminated pattern transmitted from said transmitting units and providing an output signal corresponding thereto; and micro computer means arranged to receive the output signals from said receiving units and to determine the type and magnitude of the angular deflection of said carriage utilizing the information derived from said signals.
Claim 25
Independent Claim
186 words
A device for electro-optical monitoring of angular deflections of a moving carriage relative to a stationary track along which it moves, comprising: a first saw-tooth pattern means; a first transmitting unit mounted on the moving carriage and comprising a first light source illuminating said first pattern means; a first receiving unit mounted on the track in light receiving relationship with the first transmitting unit; a second saw-tooth pattern means; a second transmitting unit mounted on the moving carriage and comprising a second light source illuminating said second pattern means; a second receiving unit mounted on the track in light receiving relationship with the second transmitting unit; means for merging the light from said first and second transmitting units and focusing the light from both transmitting units on an optical sensor means for sensing the orientation of the illuminated pattern transmitted from said transmitting units and providing an output signal corresponding thereto; and micro computer means arranged to receive the output signals from said receiving units and to determine the type and magnitude of the angular deflection of said carriage utilizing the information derived from said signals.
Claim 26
Dependent Claim
41 words
A device according to claim 21 wherein said first and second light sources are operated alternatively on a time-share basis to generate separate and independent output signals, and said micro computer means being arranged to receive both of said output signals.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-07-29 | 1995-01-28 | 1995-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-07-29 | 1999-01-28 | 1999-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-07-29 | 2003-01-28 | 2003-07-30 | $7700.00 | Window Closed / Lapsed |