US4010367A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermographic camera
Assignee: Canon Inc
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Filing: 1975-12-11
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Granted: 1977-03-01
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Expires: 1995-12-11
Abstract
Abstract In the present thermographic camera, an object is scanned by a horizontal and vertical scanning mechanisms in order to obtain temperature signals of each point on the object, and the temperature distribution of the object is indicated on a scanning display device, such as a cathode ray tube, on the basis of the signals obtained by the scanning. Temperature information of one or more arbitrary points on the object are sampled from each frame, and temperature variation of a point on the object is measured, while the identity of the point or points is marked on the temperature distribution display.
Inventors
- 👤 Koji Suzuki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 01:04
CPC Classifications
H; H04; H04N; H04N23/00; H04N23/20; H04N23/23
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
148 words
A thermographic camera comprising: a scanning mechanism for two-dimensionally scanning an object on a frame by frame basis; an infrared detector for detecting infrared light from said scanning mechanism, and a two-dimensional scanning display device for displaying detection signals, as temperature information, from said infrared detector, wherein there is made the improvement consisting of the provision, in said camera, of: sampling command means for generating in every frame sampling instruction signals, whenever respective points of a previously selected plurality of points on the object, distributed in any desired way over the aspect of the object, are scanned by said scanning mechanism; sampling means for sampling the detection signals from said infrared detector in response to said sampling instruction signals generated by said sampling command means; and means for indicating information corresponding to successive samples for/of each of said points, segregated from other information contained in said detection signals.
Claim 2
Dependent Claim
148 words
A thermographic camera comprising: a scanning mechanism for two-dimensionally scanning an object on a frame by frame basis; an infrared detector for detecting infrared light from said scanning mechanism, and a two-dimensional scanning display device for displaying detection signals, as temperature information, from said infrared detector, wherein there is made the improvement consisting of the provision, in said camera, of: sampling command means for generating in every frame sampling instruction signals, whenever respective points of a previously selected plurality of points on the object, distributed in any desired way over the aspect of the object, are scanned by said scanning mechanism; sampling means for sampling the detection signals from said infrared detector in response to said sampling instruction signals generated by said sampling command means; and means for indicating information corresponding to successive samples for/of each of said points, segregated from other information contained in said detection signals.
Claim 3
Dependent Claim
46 words
A thermographic camera according to claim 1 wherein means are provided, responsive to the instruction signals from said sampling command means, for supplying to said scanning display device signals for superimposing visual identification of said points on the indication of the temperature distribution of said object.
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) | 1980-02-29 | 1980-08-30 | 1981-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-02-29 | 1984-08-30 | 1985-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-02-29 | 1988-08-30 | 1989-03-01 | $7700.00 | Window Closed / Lapsed |