INFRARED RAY TELEVISION APPARATUS

• US 3,571,504 A
• Filed: 11/18/1968
• Issued: 03/16/1971
• Est. Priority Date: 11/22/1967
• Status: Expired due to Term

• Current Assignee: Hashimoto Junichi, Hori Hiroo, Iwasawa Mineo, Kiuchi Yuji
• Original Assignee: Hashimoto Junichi, Hori Hiroo, Iwasawa Mineo, Kiuchi Yuji
• Inventors: KIUCHI YUJI, HORI HIROO, IWASAWA MINEO, HASHIMOTO JUNICHI
• Application Number:
  US04/776,445
• Time in Patent Office: 848 Days
• US Class Current: 348/164
• CPC Class Codes: H04N 5/33 Transforming infrared radiation cameras or camera modules for generating image signals from infrared radiation H04N23/20; circuitry of SSIS for transforming infrared radiation into image signals H04N25/20
• CPC Class Codes: H04N 9/43 Conversion of monochrome picture signals to colour picture signals for colour picture display

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.

Claims

1. 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.

2. 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.

3. 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.