| 摘要 |
PROBLEM TO BE SOLVED: To make it possible to prevent a person from being dazzled even when the person enters the space between a device and a projection target surface while image light is projected.SOLUTION: A projector device 100 includes a distance measurement unit 111 that transmits a magnetic wave or sound wave toward the surface of a screen S and receives a reflection wave from the surface to measure distance information, and a luminance adjustment unit 115 that adjusts the luminance of image light, which is light modulated on the basis of image information, on the basis of the measurement by the distance measurement unit 111, where the luminance adjustment unit 115 reduces, when the measurement is less than first distance information L1, the luminance of the image light compared with the case where the measurement is equal to or more than the first distance information L1. |
