The present invention provides a lighting device that helps suppress deterioration of recognizability of skin on a vein and skin on a periphery thereof. Chromaticity of second white light L2 is within a third-step range of MacAdam ellipse centered at chromaticity of first white light L1. A first ratio that indicates a sum of radiation energy in a wavelength range that is higher than 500nm and lower than 520nm and that in a wavelength range that is higher than 620nm and lower than 700nm relative to radiation energy in a wavelength range that is higher than 380nm and lower than 780nm for the first white light L1 is greater than that of the second white light L2. Further, a control section 162 keeps a sum of light amounts of the first white light L1 and the second white light L2 substantially constant and makes a second ratio that indicates the light amount of the second white light L2 relative to the light amount of the first white light L1 varying at a specific period.本發明提供一種抑制靜脈上之肌膚及其周圍肌膚之辨別性降低之照明裝置等。第2白色光L2之色度在以第1白色光L1之色度為中心之MacAdam橢圓3梯級範圍內，第1白色光L1之表示500 nm以上520 nm以下之波長範圍及620 nm以上700 nm以下之波長範圍之放射能之和相對於380 nm以上780 nm以下之波長範圍之放射能的第1比率高於第2白色光L2。又，控制部162將第1白色光L1與第2白色光L2之光量之和維持大致固定，且使表示第2白色光L2之光量相對於第1白色光L1之光量之第2比率以特定之週期變化。
