Abstract: To obtain an image signal in which the distance to a target can be recognized, an infrared imaging apparatus 47 comprises an infrared irradiation unit 48 for radiating infrared radiation in an attenuation wavelength range in which the infrared radiation is attenuated according to the transmitted distance and an infrared imaging unit 49 for detecting infrared radiation emitted from the target and infrared radiation reflected by the target, and outputting an image signal. When the infrared irradiation unit 48 irradiates infrared in an attenuation wavelength range, that is, an absorption wavelength range wherein the transmittance in the air is small and the absorption in the air is high, the intensity of the reflected light from the target varies according to the distance to the target. The infrared imaging unit 49 detects the reflected light from the target which is attenuated depending on the distance in addition to and superposed to the infrared radiation emitted from the target.

Abstract: To obtain an image signal in which the distance to a target can be recognized, an infrared imaging apparatus 47 comprises an infrared irradiation unit 48 for radiating infrared radiation in an attenuation wavelength range in which the infrared radiation is attenuated according to the transmitted distance and an infrared imaging unit 49 for detecting infrared radiation emitted from the target and infrared radiation reflected by the target, and outputting an image signal. When the infrared irradiation unit 48 irradiates infrared in an attenuation wavelength range, that is, an absorption wavelength range wherein the transmittance in the air is small and the absorption in the air is high, the intensity of the reflected light from the target varies according to the distance to the target. The infrared imaging unit 49 detects the reflected light from the target which is attenuated depending on the distance in addition to and superposed to the infrared radiation emitted from the target.

Abstract: A signal processing device for providing a large-scale solid-state imaging element composed by combining two solid-state imaging elements operable in field integration mode in the vertical direction. An output from a first amplifier or a zero level depending on a divisional line signal is connected to a + input terminal of a second amplifier coupled to one of the divided pixel regions. As a result, only at a timing corresponding to the divisional line, the outputs from both pixel regions are added by the second amplifier to enable the correction of a TV line to become 1/2 level.

Abstract: A control device for a charge detection circuit comprising a CCD final gate electrode formed on a semiconductor substrate, an electric potential barrier forming gate electrode placed adjacent to the CCD final gate electrode, a diffusion region formed adjacent to the electric potential barrier forming gate electrode, a reset transistor connected to the diffusion region, a source follower circuit which uses as an input an electric potential in the diffusion region, a sample and hold circuit for receiving the output of the source follower circuit at a specified timing, a reference voltage source which has a value determined by the dynamic range of the source follower circuit, and an integrator which integrates a difference between the output of the sample and hold circuit and the output of the reference voltage source, and applies a value obtained by the integration to the electric potential barrier forming gate electrode.

Abstract: An infrared video camera shading correction device which includes an averaging circuit for averaging during a few frames the output of an infrared image sensor to provide an average output, a shading pattern generator for generating a shading pattern similar to that of an optics of the infrared video camera, a multiplier for multiplying the average output by the shading pattern signal to provide a multiplication output, and a subtractor for subtracting the multiplication output from the infrared video signal of the infrared image pickup section for effecting shading correction.