US4914307A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optoelectronic device for contactless measurement of the dimensions of objects
Assignee: Artos Italia SpA
•
Filing: 1988-05-18
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Granted: 1990-04-03
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Expires: 2008-05-18
Abstract
Abstract An optoelectronic device for the contactless measurement of objects includes an opaque hollow body with an opening for the introduction of the object to be measured. At least one emitter diode and an associated photovoltaic cell are arranged in the cavity of the body in a common plane perpendicular to the direction of introduction of the object to be measured. In use, an object introduced into the body in a predetermined direction can be interposed between the emitter diode and the photovoltaic cell so as to project on to the latter a shadow which is a function of its transverse dimensions. Conveniently, two intersecting emitter diode photovoltaic cell pairs can be arranged in the body.
Inventors
- 👤 Veselin Kanev
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:20
CPC Classifications
G; G01; G01B; G01B11/00; G01B11/08; G01B11/10; G01B11/105
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
129 words
A device according to the contactless measuring of the dimensions of an object comprising an opaque hollow body with an opening for the introduction of the object to be measured, at least one radiation emitter diode and a linear photovoltaic cell for generating an electrical signal indicative of the quantity of radiation received; the emitter diode and the photovoltaic cell being arranged in the cavity of the body in a common plane perpendicular to the direction of introduction of the object to be measured so that, in use, an object introduced into the body in the predetermined direction of introduction can be interposed between the emitter diode and the photovoltaic cell so as to project on to the latter a shadow which is a function of its transverse dimensions.
Claim 2
Independent Claim
129 words
A device according to the contactless measuring of the dimensions of an object comprising an opaque hollow body with an opening for the introduction of the object to be measured, at least one radiation emitter diode and a linear photovoltaic cell for generating an electrical signal indicative of the quantity of radiation received; the emitter diode and the photovoltaic cell being arranged in the cavity of the body in a common plane perpendicular to the direction of introduction of the object to be measured so that, in use, an object introduced into the body in the predetermined direction of introduction can be interposed between the emitter diode and the photovoltaic cell so as to project on to the latter a shadow which is a function of its transverse dimensions.
Claim 3
Dependent Claim
69 words
A device according to claim 1, further including a second emitter diode and an associated second linear photovoltaic cell arranged in the cavity of the body in a common plane perpendicular to the direction of introduction of the object to be measured and facing each other along a line which is inclined to the line along which the first emitter diode and the first photovoltaic cell face each other.
Claim 4
Dependent Claim
29 words
A device according to claim 2, wherein the the second emitter diode and the second photovoltaic cell are coplanar with the first emitter diode and the first photovoltaic cell.
Claim 5
Dependent Claim
42 words
A device according to claim 2, where the line along which the first emitter diode and the first photovoltaic cell face each other is perpendicular to the line along which the second emitter diode and the second photovoltaic cell face each other.
Claim 6
Dependent Claim
14 words
A device according to claim 1, wherein the cavity of the body is quadrilateral-shaped.
References Cited (Backward Citations)
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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) | 1993-04-02 | 1993-10-02 | 1994-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-04-02 | 1997-10-02 | 1998-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-04-02 | 2001-10-02 | 2002-04-03 | $7700.00 | Window Closed / Lapsed |