Patent US5440127A successfully refreshed from Google Patents.
US5440127A
Expired / Lapsed
US
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Method and apparatus for illuminating target specimens in inspection systems
Assignee: Simco/Ramic Corp
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Filing: 1993-05-17
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Granted: 1995-08-08
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Expires: 2013-05-17
Abstract
Abstract An illumination system (12) for an optical inspection and sorting apparatus (10) includes a rare gas discharge lamp (36) for emitting select wavelengths of radiation. Rare gas discharge lamp (36) includes a light transmissive outer envelope (58) and contains one or more rare gases, and in particular neon, argon, or xenon. A hemi-elliptical reflector (48) having reflecting surface (38) directs the select wavelengths of radiation toward target specimens (16) in optical scanning area (24) in illumination area (20).
Inventors
- 👤 Henry P. Squyres
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 17:14
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/84; G01N21/88; G01N21/8806; B; B07; B07C; B07C5/00; B07C5/34; B07C5/342; B07C5/3422; G01N21/89; G01N21/8901; Y; Y10; Y10S; Y10S250/00; Y10S250/91
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
85 words
A method of operating an automated optical inspection system to separate selected items from a mixture including blueberries and the selected items, comprising: illuminating the mixture with illumination characterized by a spectral power distribution including a high intensity of power at wavelengths in the near infrared; detecting reflections of wavelengths of the illumination in the near infrared from the mixture; identifying the selected items in the mixture based on the detected reflections; and separating the selected items from the mixture with use of the identification.
Claim 2
Independent Claim
85 words
A method of operating an automated optical inspection system to separate selected items from a mixture including blueberries and the selected items, comprising: illuminating the mixture with illumination characterized by a spectral power distribution including a high intensity of power at wavelengths in the near infrared; detecting reflections of wavelengths of the illumination in the near infrared from the mixture; identifying the selected items in the mixture based on the detected reflections; and separating the selected items from the mixture with use of the identification.
Claim 3
Dependent Claim
14 words
The method of claim 1, wherein the selected items include vegetable matter containing chlorophyll.
Claim 4
Dependent Claim
11 words
The method of claim 1, wherein the blueberries comprise ripe blueberries.
Claim 5
Dependent Claim
28 words
The method of claim 1, wherein the selected items reflect the power of the illumination in a spectral range of from about 500 nm to about 600 nm.
Claim 6
Dependent Claim
28 words
The method of claim 1, wherein the selected items absorb the power of the illumination in a spectral range of from about 400 nm to about 700 nm.
Claim 7
Dependent Claim
17 words
The method of claim 1, further comprising producing the illumination with a hot-cathode rare gas discharge lamp.
Claim 8
Independent Claim
81 words
A method of operating an automated optical inspection system to separate selected items from a mixture including blueberries and the selected items, comprising: illuminating the mixture with high-intensity illumination from a hot-cathode rare gas discharge lamp, said illumination being in the near infrared and characterized by a spectral power distribution; resolving with the illumination selected items in the mixture; identifying the resolved selected items with the illumination; and separating the resolved selected items from the mixture with use of the identification.
Claim 9
Independent Claim
81 words
A method of operating an automated optical inspection system to separate selected items from a mixture including blueberries and the selected items, comprising: illuminating the mixture with high-intensity illumination from a hot-cathode rare gas discharge lamp, said illumination being in the near infrared and characterized by a spectral power distribution; resolving with the illumination selected items in the mixture; identifying the resolved selected items with the illumination; and separating the resolved selected items from the mixture with use of the identification.
Claim 10
Dependent Claim
29 words
The method of claim 7, wherein substantially all of the power in the illumination is at wavelengths within a spectral range of from about 400 to about 1100 nm.
Claim 11
Dependent Claim
29 words
The method of claim 7, wherein substantially all of the power in the illumination is at wavelengths within a spectral range of from about 700 to about 1000 nm.
Claim 12
Dependent Claim
29 words
The method of claim 7, wherein a significant fraction of the total power in the illumination is in a spectral range of from about 580 to about 780 nm.
Claim 13
Independent Claim
89 words
A method of operating an automated optical inspection system to separate soft-centered potato chips from a mixture including soft-centered potato chips and fully cooked potato chips, comprising: illuminating the mixture with illumination characterized by a spectral power distribution including a high intensity of power at wavelengths in the near infrared; detecting reflections of wavelengths of the illumination in the near infrared from the mixture; identifying a selected item in the mixture based on the detected reflections; and separating the selected item from the mixture with use of the identification.
Claim 14
Independent Claim
89 words
A method of operating an automated optical inspection system to separate soft-centered potato chips from a mixture including soft-centered potato chips and fully cooked potato chips, comprising: illuminating the mixture with illumination characterized by a spectral power distribution including a high intensity of power at wavelengths in the near infrared; detecting reflections of wavelengths of the illumination in the near infrared from the mixture; identifying a selected item in the mixture based on the detected reflections; and separating the selected item from the mixture with use of the identification.
Claim 15
Dependent Claim
17 words
The method of claim 11, further comprising producing the illumination with a hot-cathode rare gas discharge lamp.
Claim 16
Dependent Claim
29 words
The method of claim 12, wherein the fully cooked potato chips reflect more of the power of the illumination in the near infrared than do the soft-centered potato chips.
Claim 17
Dependent Claim
29 words
The method of claim 12, wherein substantially all of the power in the illumination is at wavelengths within a spectral range of from about 600 to about 800 nm.
Claim 18
Dependent Claim
29 words
The method of claim 12, wherein substantially all of the power in the illumination is at wavelengths within a spectral range of from about 650 to about 750 nm.
Claim 19
Dependent Claim
29 words
The method of claim 12, wherein a significant fraction of the total power in the illumination is in a spectral range of from about 650 to about 750 nm.
Claim 20
Dependent Claim
39 words
The method of claim 12, wherein the fully cooked potato chips reflect more of the power of the illumination at wavelengths within a spectral range of from about 600 to about 800 nm than do the soft-centered potato chips.
References Cited (Backward Citations)
US3675769A
Cited
US3773172A
Cited
US4057352A
Cited
US4262806A
Cited
US4186836A
Cited
US4279346A
Cited
US4738175A
Cited
US5085325A
Cited
US5141110A
Cited
US5134291A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-08-07 | 1999-02-06 | 1999-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-08-07 | 2003-02-06 | 2003-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-08-07 | 2007-02-06 | 2007-08-08 | $7700.00 | Window Closed / Lapsed |