Abstract: A strobe device including a preparatory light radiator for generating a fixed amount of preparatory light a plurality of times to set an amount of actual light to be generated when radiating supplementary light onto a subject during photographing; an image pickup element for receiving a fixed amount of preparatory light, generated a plurality of times by the preparatory light radiator, and photoelectrically converting light reflected from the subject; an amplifier for amplifying the photoelectrically converted signal during the plurality of times of generating preparatory light, by an amplification factor which differs for each generation of preparatory light; a detector for detecting whether the average level of signals being output from the amplifier, for each generation of preparatory light, is within a predetermined range; and a calculator for calculating an amount of actual light to be generated based on signals output from the amplifier when the detector has determined that the average level of signals

Abstract: The present invention relates to an LCD unit that has a reflective liquid-crystal panel including two glass plates with a liquid crystal locked in between, two polarization plates affixed to outer sides of the two glass plates, and a reflection plate arranged under the lower polarization plate. The LCD unit further comprises a light accumulating part that is arranged under the liquid-crystal panel in order to illuminate the liquid-crystal panel and that accumulates light and glows, and a light guide for efficiently introducing light entering externally to the light accumulating part.