WAVELENGTH ESTIMATION DEVICE, LIGHT-SOURCE DEVICE, IMAGE DISPLAY APPARATUS, WAVELENGTH ESTIMATION METHOD, AND LIGHT-SOURCE CONTROL METHOD

摘要

A wavelength estimation device (7000) including a light detector (117) to receive light emitted from a light source (110) and an estimation unit (700a). The estimation unit (700a) estimates a wavelength of the light based on an amount of light received by the light detector (117).