Light measuring device, printing apparatus, and image display apparatus

Abstract

A light measuring device can measure, in one place, a plurality of lights guided from different places. The light measuring device includes a spectroscope configured to selectively transmit light having a desired wavelength, a plurality of light guiding units configured to guide measurement target light to the spectroscope, and a light receiving unit configured to receive the light emitted from the spectroscope. The light guiding units are provided in positions where different lights are respectively made incident on incident ends of the light guiding units as the measurement target light and positions where emission ends of the light guiding units respectively emit lights to different positions of the spectroscope. The spectroscope emits the lights, which are made incident from the light guiding units, respectively from different positions. The light receiving unit separately receives the lights emitted from the different positions of the spectroscope.

Dependencies are inferred from the claim text.