Abstract: A limit switch includes: a switch main body capable of being switched on and off; and an operation unit connected to the switch main body.

Abstract: Provided is an image sensing apparatus in which it is possible to use an optical system having a large aperture and an image sensing system such as an image sensing element in an image sensing cartridge docked with a portable image device. The image sensing apparatus includes a portable information device and an image sensing cartridge, which has at least an image sensing system, capable of being loaded in and unloaded from the information device. An image sensing operation becomes possible by docking the information device and the image sensing cartridge. The image sensing cartridge has an opening, which is for introducing light to the image sensing system, the aperture of which is designed to be larger than the shortest portion of an insertion port, which is provided in the information device, for inserting the image sensing cartridge.

Abstract: Provided is an image sensing apparatus in which it is possible to use an optical system having a large aperture and an image sensing system such as an image sensing element in an image sensing cartridge docked with a portable image device. The image sensing apparatus includes a portable information device and an image sensing cartridge, which has at least an image sensing system, capable of being loaded in and unloaded from the information device. An image sensing operation becomes possible by docking the information device and the image sensing cartridge. The image sensing cartridge has an opening, which is for introducing light to the image sensing system, the aperture of which is designed to be larger than the shortest portion of an insertion port, which is provided in the information device, for inserting the image sensing cartridge.

Abstract: A solid state image pickup apparatus for obtaining a luminance signal from the average value of outputs of two or more pixels varying in spectral characteristic from line to line. It includes a circuit to correct the amplitude of a luminance signal in every other line such that the amplitude of the luminance signal in each line is constant in a uniform luminance face image pickup state. The circuit may automatically switch the amplitude of the luminance signal in accordance with a change in the color temperature.

Abstract: An image signal processor for correcting a difference in level between luminance signals in horizontal scanning lines using a control signal generated in accordance with a color signal, wherein the color signals are two color difference signals (R-Y) and (B-Y), and wherein the control signal includes a linear combination of the two color difference signals (R-Y) and (B-Y).

Abstract: In an electronic still camera including an image pickup element having color filters which are changed at one-pixel periods in a vertical direction, and the memory outputs from the image pickup elements are temporarily stored in a memory and are read out again to obtain frame data.

Abstract: An image pickup signal processing apparatus for generating a digital luminance signal and digital color difference signals from output signals from a solid-state image pickup element, includes subtracters for generating primary color signals or color difference signals from the output signals from the solid-state image pickup element, and an A/D converter for converting the primary color or color difference signals output from the subtracters into digital signals.

Abstract: An image processing apparatus for converting different television standard signals includes an image pickup apparatus for selectively outputting an image signal of one of (i) a first television scheme and (ii) a second television scheme having a larger number of pixels than the first television scheme. An image pickup device is provided having a number of pixels corresponding to the first television scheme. A memory is provided for storing an output image signal from the image pickup device at a frequency corresponding to the first television scheme. An interpolation signal generating circuit is provided for generating an interpolation signal by adding a constant signal to a television signal corresponding to the second television scheme for compensating for an output of the second television signal. Video signal forming circuitry is also provided for forming a video signal by combining the signal read out from the memory and the interpolation signal generated by the interpolation signal generating circuitry.

Abstract: An image signal processing device includes a luminance information detecting circuit which detects luminance information on an object and a filter circuit to which an image signal is supplied from an image sensing system. The filtering characteristic of the filter circuit is arranged to be switched from one characteristic over to another according to the detection output of the luminance information detecting circuit, so that the generation of a pseudo-contour can be prevented.

Abstract: A solid state image pickup apparatus for obtaining a luminance signal from the average value of outputs of two or more pixels varying in spectral characteristic from line to line. It includes a circuit to correct the amplitude of a luminance signal in every other line such that the amplitude of the luminance signal in each line is constant in a uniform luminance face image pickup state. The circuit may automatically switch the amplitude of the luminance signal in accordance with a change in the color temperature.