JPH0480191U - - Google Patents

Description

[Brief explanation of the drawing]

FIG. 1 is a diagram of an infrared imaging device showing one embodiment of this invention, FIGS. 2 and 3 are diagrams of an infrared imaging device showing another embodiment of this invention, and FIG. 4 is a conventional infrared imaging device. FIG. In the figure, 1 is an infrared lens, 2 is an infrared sensor, 3 is a pedestal change unit, 4 is an analog/digital converter, 5 is an image correction unit, 6 is a display signal output unit, 7 is a display unit, and 8 is a scan control unit , 9 is a limit value detection section, 10 is a frequency counting section, 11 is a condition setting section,
12 is a maximum value detection section. Note that the same reference numerals in each figure indicate the same or corresponding parts.

Claims (1)

[Scope of claims for utility model registration] (1) An infrared sensor for concentrating infrared light;
An infrared sensor that converts the infrared image formed by this infrared lens into an electrical signal and outputs it, and an effective lower level (pedestal level) of the output of this infrared sensor is determined, and the pedestal is changed to pass only the infrared sensor output that exceeds this pedestal level. Department and
An analog/digital conversion section for converting the output from the pedestal changing section into a digital value; an image correction section for correcting variations in the input/output characteristics of the infrared sensor with respect to the output of the analog/digital conversion section; a display signal output section that converts and outputs the output of the correction section into a video format; a display section that generates and displays a video signal from the display output section; the infrared sensor, the analog/digital conversion section, the image correction section, and the display signal output section. a scan control section that supplies various timing signals and image addresses to the image correction section; and a scan control section that supplies various timing signals and image addresses to the image correction section; An infrared imaging device characterized by comprising a limit value detection section that outputs an output. (2) an infrared lens for concentrating infrared rays;
an infrared sensor that converts and outputs an infrared image formed by this infrared lens into an electrical signal; a pedestal changing unit that determines a pedestal lens for the output of this infrared sensor, and passes only the infrared sensor output when the pedestal level is exceeded; An analog/digital conversion section for converting the output from the change section into a digital value, an image correction section for correcting variations in input/output characteristics of the infrared sensor with respect to the output of the analog/digital conversion section, and this image correction section. a display signal output unit that converts and outputs the output of On the other hand, there is a scan control section that supplies various timing signals and image addresses, a limit value detection section that inspects the output data from the image correction section and detects data that matches the saturation limit value, and a frequency counter that counts the frequency of the saturation limit value data and outputs a signal to the pedestal changing section to lower the pedestal level when the number exceeds a certain value; and a signal output condition is set for the frequency counter. An infrared imaging device characterized by being equipped with a condition setting unit for (3) an infrared sensor for concentrating infrared light;
an infrared sensor that converts and outputs an infrared image formed by the infrared lens into an electrical signal; a pedestal changing unit that determines a pedestal level of the infrared sensor signal output and passes only the infrared sensor output exceeding the pedestal level; an analog/digital converter for converting the output from the change unit into a digital value; an image correction unit for correcting variations in the input/output characteristics of the infrared sensor for the output of the analog/digital converter; a display signal output section that converts and outputs the output of the section into a video format; a display section that reproduces and displays the video signal from the display output section; the infrared sensor, the analog/digital conversion section, the image correction section, and the display signal output section. a scanning control unit that supplies various timing signals and image addresses to the image correction unit; detects the maximum value of output data from the image correction unit; and lowers the pedestal when the maximum value matches a saturation limit value; A maximum value detection section that outputs a signal to the pedestal change section to raise the pedestal level when the maximum value is smaller than the set value, and a condition setting section that sets the value to be compared with the detected maximum value for this maximum value detection section. An infrared imaging device comprising: