Image projecting apparatus, image projecting method, and medium

摘要

An image projecting apparatus that includes an illumination measuring unit that measures illumination of light illuminated on a side of the image projecting apparatus opposite a supported surface of the image projecting, an illumination calculator that calculates illumination at the projection surface based on the measured illumination, and a projection light intensity determining unit that determines luminous intensity of projection light from an image projecting unit that projects an image on the projection surface. The illumination calculator calculates illumination at the projection surface based on optical reflecting characteristics of the installation environment of the image projecting apparatus.

主权项

1. An image projecting apparatus that projects an image on a projection surface, comprising:
an illumination measuring unit to measure illumination of light illuminated on a side of the image projecting apparatus opposite a supported surface of the image projecting apparatus; an illumination calculator to calculate an illumination at the projection surface based on the measured illumination measured by the illumination measuring unit; an image projecting unit that projects the image on the projection surface; and a projection light intensity determining unit to determine a luminous intensity of projection light from the image projecting unit, wherein the illumination calculator calculates an illumination at the projection surface based on optical reflecting characteristics of the installation environment of the image projecting apparatus, wherein the optical reflecting characteristics represent a ratio between illumination of incident light and illumination of reflected light at the side of the image projecting apparatus opposite the supported surface of the image projecting apparatus, represent a ratio between standard illumination predefined in accordance with installation environment and the illumination measured by the illumination measuring unit, or are determined based on at least one of material and color of a side of the image projecting apparatus opposite the supported surface of the image projecting apparatus, and wherein the illumination calculator sets the illumination measured by the illumination measuring unit divided by the optical reflecting characteristics as the illumination at the projection surface.