Abstract: The disclosure provides a projection device and a parameter adjustment method thereof. An environment detection value is received from a detection module through a control chip, wherein the environment detection value is at least one of an environment illuminance value, a volume load value and an environment volume value. Then, the environment detection value is compared with a reference range to obtain a corresponding environment mode. Furthermore, a rotation speed of a fan module is adjusted according to an environment load value corresponding to the environment mode. The projection device and the parameter adjustment method thereof provided by the invention make the illuminance and noise output of the projection device more suitable for the operation condition.

Abstract: The disclosure provides a projection apparatus, which includes a casing, a projection module, at least one airflow generating unit, and at least one speaker. The casing has at least one air outlet. The projection module is disposed in the casing and configured to project an image beam outside the casing. The airflow generating unit is disposed in the casing and configured to generate airflow. The speaker is disposed in the casing, and the airflow generating unit is located between the projection module and the speaker. The speaker has at least one flow guiding surface, and the flow guiding surface is inclined toward the air outlet to guide the airflow toward the air outlet. The projection apparatus has a favorable heat dissipation capability and may reduce the noise generated by the airflow generating unit.

Abstract: A projector and a projection system are provided. The projection system includes the projector and a mobile device. The projector receives an audio-visual signal coming from the mobile device via a default wireless domain when the projector is connected to the mobile device, and outputs an image according to the audio-visual signal. The projector also charges the mobile device.

Abstract: A projection device includes a heat source module, a heat storage module, and a heat dissipation connecting element. The heat source module is configured to generate a light beam. The heat storage module includes a storage tank and a heat storage material, and the heat storage material is filled into the storage tank. The heat dissipation connecting element connects the heat source module and the heat storage module. Heat generated by the heat source module is transferred to the heat storage module through the heat dissipation connecting element.

Abstract: A projection apparatus and a control method thereof are provided. The projection apparatus includes a light source, an optical engine, a first sensor, and a processor. The light source provides a light beam to the optical engine. The optical engine converts the light beam into an image beam and projects the same out of the projection apparatus. The first sensor senses an ambient temperature. The processor is coupled to the optical engine, the light source, and the first sensor, records a projection time of the optical engine, selects a selected temperature range in which the ambient temperature is included from multiple temperature ranges according to the ambient temperature, and selects a selected driving program from multiple driving programs corresponding to the temperature ranges according to the selected temperature range to control the light source. A brightness of light beam is negatively related to the projection time.

Abstract: A projection apparatus includes a frame body, an optical engine module disposed in the frame body and including at least one light source and a light valve, a projection lens, and a first heat dissipation module. The light source provides an illumination light beam. The light valve located in a transmission path of the illumination light beam converts the illumination light beam into an image light beam. The projection lens located in a transmission path of the image light beam projects the image light beam. The first heat dissipation module is disposed on the frame body and contacts at least one of the light source and the light valve. The frame body and the first heat dissipation module together form at least part of a housing of the projection apparatus. A thermal conductivity coefficient of the frame body is less than that of the first heat dissipation module.

Abstract: A projection apparatus includes a casing, a light source module, an optical engine module, a heat dissipation module and a projection lens. The casing has multiple air inlets and an air outlet. The light source module is disposed in the casing, and is configured to provide an illumination beam, wherein the light source module includes multiple light sources. The optical engine module is disposed in the casing, and is located on a transmission path of the illumination beam, and is configured to convert the illumination beam into an image beam. The heat dissipation module is disposed in the casing, and is connected to the light sources, where the heat dissipation module includes multiple heat sinks located close to the air inlets, respectively. The projection lens is disposed in the casing, and is connected to the optical engine module, and is configured to project the image beam out of the casing.

Abstract: A projection apparatus includes a casing, a light source module, an optical engine module, a heat dissipation module and a projection lens. The casing has multiple air inlets and an air outlet. The light source module is disposed in the casing, and is configured to provide an illumination beam, wherein the light source module includes multiple light sources. The optical engine module is disposed in the casing, and is located on a transmission path of the illumination beam, and is configured to convert the illumination beam into an image beam. The heat dissipation module is disposed in the casing, and is connected to the light sources, where the heat dissipation module includes multiple heat sinks located close to the air inlets, respectively. The projection lens is disposed in the casing, and is connected to the optical engine module, and is configured to project the image beam out of the casing.

Abstract: A projector includes a light source module, a light valve, and a projection lens. The light source module includes a substrate, at least one light emitting element, a heat conducting structure, and at least one electricity insulating and heat conducting element. The light emitting element is disposed on the substrate, and has a conductive portion. The light emitting element provides an illumination beam. The heat conducting structure has at least one concave. The substrate is disposed in the at least one concave, and the conductive portion is located in the concave. The electricity insulating and heat conducting element is disposed in the concave, and covers the substrate and the conductive portion. The light valve is disposed on a transmission path of the illumination beam, and converts the illumination beam to an image beam. The projection lens is disposed on a transmission path of the image beam.