JPH0253671U

JPH0253671U -

Info

Publication number: JPH0253671U
Application number: JP1988133564U
Authority: JP
Priority date: 1988-10-13
Filing date: 1988-10-13
Publication date: 1990-04-18

Description

[Brief explanation of drawings]

第１図はこの考案の一実施例を示す構成図、第
２図は従来の赤外線撮像装置の構成図である。図において１は赤外線レンズ、２はシヤツタ、
３は２次元赤外線固体撮像素子、４はＡ／Ｄ変換
器、５はオフセツト補正回路、６はオフセツト値
格納メモリ、７は信号処理回路、８はＤ／Ａ変換
器、９はビデオ出力、１０は補正制御回路、１１
は平均温度検出回路、１２はシヤツタ温度制御回
路である。なお、図中、同一符号は同一あるいは
相当部分を示す。 FIG. 1 is a block diagram showing an embodiment of this invention, and FIG. 2 is a block diagram of a conventional infrared imaging device. In the figure, 1 is an infrared lens, 2 is a shutter,
3 is a two-dimensional infrared solid-state image sensor, 4 is an A/D converter, 5 is an offset correction circuit, 6 is an offset value storage memory, 7 is a signal processing circuit, 8 is a D/A converter, 9 is a video output, 10 is a correction control circuit, 11
1 is an average temperature detection circuit, and 12 is a shutter temperature control circuit. In addition, in the figures, the same reference numerals indicate the same or corresponding parts.

Claims

[Scope of utility model registration request]

a two-dimensional infrared solid-state image sensor; an infrared lens that forms an image on the two-dimensional infrared solid-state image sensor;
a shutter provided in front of the solid-state image sensor; an A/D converter that converts the output of the solid-state image sensor into a digital signal; an offset value storage memory that stores an offset pattern of the solid-state image sensor; An infrared ray camera having an offset correction circuit that corrects an offset pattern from an infrared image based on an output signal of an offset value storage memory, and a correction control circuit that opens and closes the shutter according to the correction mode and imaging mode and controls the offset correction. In the imaging device, there is provided an average temperature detection circuit that calculates the average output of several frames of the output of the solid-state image sensor, and an infrared intensity emitted from the shutter in response to the output of the average temperature detection circuit, and an infrared intensity emitted from the object to be imaged. 1. An infrared imaging device comprising: a shutter temperature control circuit that controls shutter temperature to be equal to an average intensity level.