Method of controlling projector and projector
AssigneeSeiko Epson Corporation
InventorAkio Tomotoshi
Life of this patent
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Abstract
A method of controlling a projector includes projecting an achromatic area image representing a drawing area in which the projector receives drawing using a pointer on a projection surface at a first luminance at a ratio on the projection surface, the ratio being smaller than or equal to a specific ratio to a maximum luminance at which the projector capable of project an image on the projection surface, detecting a position on the projection surface pointed by the pointer while projecting the area image, determining whether or not the position is included in the drawing area, and displaying, by the projector, an area including at least a part of an outline of the drawing area at a luminance higher than the first luminance when it is determined that the position is included in the drawing area.
Claims7
A method of controlling a projector comprising:
- projecting an achromatic area image representing a drawing area in which a projector receives drawing using a pointer on a projection surface at a first luminance at a ratio on the projection surface, the ratio being smaller than or equal to a specific ratio to a maximum luminance at which the projector capable of project an image on the projection surface;
- detecting a position on the projection surface pointed by the pointer while projecting the area image;
- determining whether or not the position is included in the drawing area;
- and
- displaying, by the projector, an area including at least a part of an outline of the drawing area at a luminance higher than the first luminance when it is determined that the position is included in the drawing area.
A projector comprising:
- a light source;
- a detection device configured to detect a position on a projection surface pointed by a pointer;
- and
- at least one processor programmed to execute
- projecting, using the light source, an achromatic area image representing a drawing area in which drawing with the pointer is received on a projection surface at a first luminance at a ratio on the projection surface, the ratio being smaller than or equal to a specific ratio to a maximum luminance at which an image is projected on the projection surface,
- detecting a position on the projection surface pointed by the pointer using the detection device while projecting the area image,
- determining whether or not the position is included in the drawing area, and
- displaying, using the light source, an area including at least a part of an outline of the drawing area at a luminance higher than the first luminance when it is determined that the position is included in the drawing area.
Dependencies are inferred from the claim text.