JP2015114653A5 - - Google Patents

Claims (13)

In an image projection apparatus that projects an image on a projection surface,
Smoke detection means for detecting smoke;
Temperature detection means for detecting temperature;
Based on the detection results of the smoke detection means and the temperature detection means, a determination means for determining whether or not smoke is generated around the apparatus,
An image projection apparatus comprising: The image projector according to claim 1,
The determination means also determines whether or not smoke is generated near the device or the device,
An image projection apparatus that controls the image projection apparatus corresponding to smoke generation around the apparatus and smoke generation near the apparatus and the vicinity of the apparatus, and outputs warnings and information. The image projection apparatus according to claim 2,
An image projection apparatus that outputs the warning or the information using an image projection unit of the image projection apparatus. The image projection apparatus according to claim 2,
Comprising at least one of audio output means and external communication means,
An image projection apparatus that outputs the warning or the information using at least one of an image projection unit, an audio output unit, and an external communication unit of the image projection apparatus. In the image projection device according to any one of claims 1 to 4,
The smoke sensor of the smoke detection means is provided at a plurality of locations of the image projection device corresponding to a plurality of installation states in which the image projection device can be installed. In the image projection device according to any one of claims 1 to 5,
The temperature sensor of the said temperature detection means is provided in the several location of the said image projector, The image projector characterized by the above-mentioned. In the image projection device according to any one of claims 1 to 6,
An object detection means for detecting a shielding object between the projection lens and the projection surface of the image projection apparatus;
Based on the detection result of the object detection means,
The image projecting apparatus according to claim 1, wherein the determination unit determines whether or not smoke is generated due to the shield when the smoke detection unit detects smoke. In the image projection device according to any one of claims 1 to 7,
The smoke detecting means is a photoelectric system in which a light receiving portion of a smoke sensor of the smoke detecting means is provided at a position where light is not directly received from a light source that performs image projection, and light scattered by smoke is received. Projection device. The image projection apparatus according to claim 8, wherein
An image projection apparatus, wherein the light source emits only a predetermined amount of light even in a standby state in which image projection is not performed. The image projection apparatus according to claim 8 or 9,
The image projector according to claim 1, wherein the light source includes a plurality of light emitting elements. The image projector according to claim 10.
An image projection apparatus characterized by causing only some of the light emitting elements to emit light even in a standby state in which image projection is not performed. The image projection device according to claim 11,
An image projection apparatus characterized by causing another light emitting element to emit light when a light emitting element emitting light fails. The image projector according to any one of claims 8 to 12,
An image projection apparatus using leakage light of the light source.