| 摘要 |
There is provided a lighting apparatus capable of regulating the amount of light in a wavelength range inhibiting melatonin secretion which is emitted from a luminous portion in a direction toward eyes of a user to change an influence on the inhibition of melatonin secretion, and performing adequate lighting in accordance with time or a lifestyle of the user. The lighting apparatus is configured such that first luminous portions 3, 3 ··· and second luminous portions 4 and 4 having different light distribution characteristics are used, and respective luminous intensities of the first luminous portions 3, 3 ··· and the second luminous portions 4 and 4 are controlled by a control portion to change the amount of light in the wavelength range inhibiting melatonin secretion which is emitted in a predetermined direction from the first luminous portions 3, 3 ··· and the second luminous portions 4 and 4. As a result, by changing the amount of light emitted in the direction (predetermined direction) toward the eyes of the user in a normal usage mode, it is possible to regulate the amount of the light in the wavelength range inhibiting melatonin secretion which enters the eyes of the user to change the influence on the inhibition of melatonin secretion, and also perform adequate lighting in accordance with time or the lifestyle of the user. |
