Patent US5127727A successfully refreshed from Google Patents.
US5127727A
Expired / Lapsed
US
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Illumination devices for inspection systems
Assignee: Nortel Networks Ltd
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Filing: 1991-05-30
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Granted: 1992-07-07
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Expires: 2011-05-30
Abstract
Abstract An illumination device of an inspection system of circuit board pin extending from a printed circuit board provided with a shroud to prevent reflected light from distorting or otherwise deleteriously affecting the image received by a video camera. In the device, the shroud surrounds the pin and around a passage for directing the camera. The light source is annular and surrounds the shroud with the shroud extending axially from the light source and in the direction of light emitted from the source.
Inventors
- 👤 Aaron L. Arnold
- 👤 Daniel A. Woodward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:59
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/84; G01N21/88; G01N21/8806; G01N21/95; G01N21/956; G01N2021/95638
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
124 words
An illumination device for an inspection system for inspecting circuit board pins extending from a printed circuit board comprising: a housing surrounding a passage for directing a camera along and from one end of the passage and axially onto a pin; a light source carried by the housing and surrounding the passage to direct an annular beam of light from one end of the housing around the pin and onto the board; and a shroud extending from the one end of the housing and axially of the passage beyond the light source while extending around the axis of the passage, the shroud provided to surround upper end regions of a pin under inspection and restrict light from being reflected onto said upper end regions.
Claim 2
Dependent Claim
124 words
An illumination device for an inspection system for inspecting circuit board pins extending from a printed circuit board comprising: a housing surrounding a passage for directing a camera along and from one end of the passage and axially onto a pin; a light source carried by the housing and surrounding the passage to direct an annular beam of light from one end of the housing around the pin and onto the board; and a shroud extending from the one end of the housing and axially of the passage beyond the light source while extending around the axis of the passage, the shroud provided to surround upper end regions of a pin under inspection and restrict light from being reflected onto said upper end regions.
Claim 3
Dependent Claim
29 words
An illumination device according to claim 1 wherein the shroud is resiliently flexible so as to be resiliently deflected upon moving into contact with a printed circuit board pin.
Claim 4
Dependent Claim
17 words
An illumination device according to claim 2 wherein the shroud is formed from a thin walled metal.
Claim 5
Dependent Claim
30 words
An illumination device according to claim 3 wherein the shroud is telescopically received within the housing so as to move into the housing of an end of a pin contacts
Claim 6
Dependent Claim
30 words
An illumination device according to claim 2 wherein the shroud is formed by bristles arranged in an annular formation and individual bristles are resiliently deflectable upon contact with a pin.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-07-07 | 1996-01-06 | 1996-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-07-07 | 2000-01-06 | 2000-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-07-07 | 2004-01-06 | 2004-07-07 | $7700.00 | Window Closed / Lapsed |