Abstract: A lighting device, a fixture body for a lighting device (hereinafter, referred to as a “fixture body”), and a light-emitting unit mounted to the lighting device have excellent appearance. The lighting device is constituted of the light-emitting unit and the fixture body to which the light-emitting unit is mounted, and the light-emitting unit includes the light-emitting element and a light-transmissive cover that covers the light-emitting element and has an elongated shape. A cross-section of the light-transmissive cover orthogonal to a longitudinal direction of the light-emitting unit is U-shaped, and the fixture body includes a light-emitting unit mounting recess into which at least an opening-side end constituting the U-shape of the light-transmissive cover is inserted.

Abstract: A contour correcting circuit sharpens only the rising and falling edges of a video signal, without increasing the shoot levels of the video signal, to improve image sharpness on picture. Second, third, fourth and fifth delayed signals are formed, respectively by delaying an inputted first signal by a first delay time, a second delay time longer than the first delay time, a third delay time longer than the second delay time, and a fourth delay time longer than the third delay time in sequence, respectively. A first contour signal G is formed on the basis of a sixth signal obtained by subtracting the second signal from the third signal and a seventh signal obtained by subtracting the fourth signal from the third signal. A second contour signal representative of contour components is formed on the basis of the first signal, the third signal and the fifth signal. An eighth signal representative of contour emphasizing components is formed on the basis of the first contour signal and the second contour signal.