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US3571504A
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Infrared ray television apparatus
Assignee: Toshiba Corp
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Filing: 1968-11-18
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Granted: 1971-03-16
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Expires: 1988-11-18
Abstract
Abstract An infrared ray television apparatus wherein an incident light from a foreground subject is separated into an infrared ray and visible ray, these rays are converted to television signals by the respective image pickup means, and said signals corresponding to the infrared and visible rays are supplied to the input terminals of the red color electron gun and green color electron gun involved in a color television image-reproducing means thereby to reproduce on the same screen the infrared ray image and visible ray image in red and green colors respectively.
Inventors
- 👤 Yuji Kiuchi
- 👤 Hiroo Hori
- 👤 Mineo Iwasawa
- 👤 Junichi Hashimoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:22
CPC Classifications
H; H04; H04N; H04N9/00; H04N9/43; H04N5/00; H04N5/30; H04N5/33
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
121 words
An infrared ray television apparatus including: an image pickup means for obtaining video signals corresponding to infrared and visible rays, the image pickup means consisting of an image pickup tube with a transparent glass substrate, a filter strip deposited thereon for allowing only the infrared ray to pass, a target composed of a transparent conductive layer, a photoconductive layer sensitive to the infrared and visible zones, all laminated on the filter strip in the order mentioned; a means for extracting out from the video signals issuing from the image pickup means two types of video signals respectively corresponding to the infrared and visible ray images; and a color television image reproducing means capable of reproducing images corresponding to said video signals.
Claim 2
Dependent Claim
121 words
An infrared ray television apparatus including: an image pickup means for obtaining video signals corresponding to infrared and visible rays, the image pickup means consisting of an image pickup tube with a transparent glass substrate, a filter strip deposited thereon for allowing only the infrared ray to pass, a target composed of a transparent conductive layer, a photoconductive layer sensitive to the infrared and visible zones, all laminated on the filter strip in the order mentioned; a means for extracting out from the video signals issuing from the image pickup means two types of video signals respectively corresponding to the infrared and visible ray images; and a color television image reproducing means capable of reproducing images corresponding to said video signals.
Claim 3
Dependent Claim
45 words
An apparatus according to claim 1 wherein the color television reproducing means comprises a device for reproducing a red color image by video signals corresponding to the infrared ray image and another image of different colors by video signals corresponding to the visible ray image.
Claim 4
Dependent Claim
54 words
An apparatus according to claim 1 wherein the video signal extracting means comprises a low-pass filter and band-pass filter supplied with signals from the image pickup tube, a detector for demodulating signals from the band pass filter and a deducting means for deducting the detector outputs from the outputs of the low pass filter.
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) | 1974-03-15 | 1974-09-14 | 1975-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-15 | 1978-09-14 | 1979-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-15 | 1982-09-14 | 1983-03-16 | $7700.00 | Window Closed / Lapsed |