Patent ID: 9679533
Date: 2017-06-13
CPC Classifications: G03B,G06F,G09G

Claim:
1. An illumination apparatus comprising: an illumination light controller which sets illumination light for illuminating an illumination area, the illumination light having at least one light characteristic based on at least one of a space or an object type; an image light controller which sets image light for projecting a projection image which includes at least one of a graphic or a character, the image light being different from the illumination light in at least one of luminance or color; and a light projector which irradiates the illumination area with the illumination light set by the illumination light controller, and projects the image light set by the image light controller onto the illumination area; and a display output which receives a setting of the illumination light from the illumination light controller, and outputs image data for displaying an image indicating the illumination area, wherein the image light controller receives positional information in relation to the image data, and sets the projection image, based on the positional information, wherein the image light controller sets, as the projection image, one or more lines projected onto the object, based on the positional information, and wherein when a difference in luminance between the illumination light and the image light is less than or equal to a first predetermined value and when a difference in color shade between the illumination light and the image light is less than or equal to a second predetermined value, the luminance and the color shade of the image light are adjusted.