Abstract: A heat dissipation module includes an airflow generator, a heat dissipation substrate connected to a heat source, a heat dissipation member, a baffle, and a heat conductive member connected to the heat dissipation substrate. The heat dissipation member includes a main body and first fins arranged around an outer periphery of the main body and forming an accommodation space with the main body. The airflow generator has a rotation axis, and is accommodated in the accommodation space and connected to the main body. The baffle is connected to the first fins and has an opening corresponded to an air inlet surface of the airflow generator. On a reference plane perpendicular to the rotation axis, at least a part of an orthographic projection of each first fin does not overlap an orthographic projection of the airflow generator, and an orthographic projection of the baffle overlaps the orthographic projections of the first fins.

Abstract: A head-mounted display, which includes a case body, a heat source, and a thermally conductive material layer. The heat source and the thermally conductive material layer are disposed in the case body. The heat source is connected to the case body through the thermally conductive material layer. The case body has a first surface connected to the thermally conductive material layer and an opposite second surface. The thermally conductive material layer has a third surface connected to the heat source and an opposite fourth surface. A first distance is greater than a second distance, in which the first distance is a distance from the third surface adjacent to the heat source toward the second surface, and the second distance is a distance from the third surface away from the heat source toward the second surface. In this way, the internal heat of the head-mounted display can be uniformly distributed.

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 wearable projection device includes a body, an optical engine module, a heat-dissipation component, and a control module. The body has an air inlet, and a containing space connected to the air inlet. The optical engine module is disposed in the containing space. The heat-dissipation component disposed in the containing space is configured to dissipate heat from the optical engine module. The heat-dissipation component includes a vapor chamber and an airflow generator. The vapor chamber is connected to the optical engine module. The airflow generator is positioned on the vapor chamber, and the airflow generator includes a piezoelectric thin film. The control module is disposed on the body, electrically connected to the optical engine module and the airflow generator, and configured to drive the piezoelectric thin film to vibrate, so that an external cooling airflow enters the containing space through the air inlet to cool the vapor chamber.

Abstract: A near-eye display device includes a main frame, a temple, an optical engine module, a first heat transfer plate, and a second heat transfer plate. The temple is pivotally connected to the main frame, and the optical engine module is disposed in the main frame. The first heat transfer plate is disposed in the main frame and connected to the optical engine module. The second heat transfer plate is disposed in the temple. The temple is adapted to be rotated relative to the main frame and switched between a folded state and an unfolded state. When the temple is in the folded state, the second heat transfer plate and the first heat transfer plate are separated from each other. When the temple is in the unfolded state, the second heat transfer plate is in contact with the first heat transfer plate.

Abstract: A projection device includes a shell, a lens, two first ribs, two second ribs, and a sliding cover. The shell has a top plate, a left sidewall, and a right sidewall, the top plate is respectively connected to the left sidewall and the right sidewall, and the top plate has an opening. The lens is disposed in the shell and exposed by the opening. The two first ribs are disposed on the top plate, extending directions of the two first ribs are perpendicular to the left sidewall and the right sidewall, and the opening is disposed between the two first ribs. The sliding cover is slidably disposed on the shell for covering the opening. The two second ribs are disposed on a top cover body of the sliding cover, and one of the two second ribs is located between the two first ribs.

Abstract: A projection device of the present invention includes a casing, a light source module, a light source thermal module, a fan, and a projection lens; wherein the light source module, the light source thermal module, the fan and the projection lens are disposed in the casing, and the casing has a first side wall, a second side wall, and a bottom plate, wherein the first side wall includes a first air inlet, and the second side wall includes an air outlet; the orthographic projection range of the air outlet on the first side wall overlaps with the orthographic projection range of the light source thermal module on the first side wall, and the orthographic projection range of the projection lens on the first side wall does not overlap with the orthographic projection range of the light source thermal module on the first side wall.

Abstract: A wearable projection device includes a main body, an optical-mechanical module, a waveguide module, a first thermally conductive plate, and a control module. The main body has a display portion and a support portion connected to each other. The optical-mechanical module is disposed at the display portion and includes at least one light source. The waveguide module is disposed at the display portion. The first thermally conductive plate is connected to the light source and extends from the display portion to the support portion. The control module is electrically connected to the optical-mechanical module, so that an image generated by the optical-mechanical module is displayed on the display portion by the waveguide module. The wearable projection device is able to increase a heat dissipation area through the first thermally conductive plate, so that the wearable projection device may achieve an improved heat dissipation effect and have an improved display quality.

Abstract: A projection device of the present invention includes a casing, a light source module, a light source thermal module, a fan, and a projection lens; wherein the light source module, the light source thermal module, the fan and the projection lens are disposed in the casing, and the casing has a first side wall, a second side wall, and a bottom plate, wherein the first side wall includes a first air inlet, and the second side wall includes an air outlet; the orthographic projection range of the air outlet on the first side wall overlaps with the orthographic projection range of the light source thermal module on the first side wall, and the orthographic projection range of the projection lens on the first side wall does not overlap with the orthographic projection range of the light source thermal module on the first side wall.

Abstract: A projection device includes a shell, a lens, two first ribs, two second ribs, and a sliding cover. The shell has a top plate, a left sidewall, and a right sidewall, the top plate is respectively connected to the left sidewall and the right sidewall, and the top plate has an opening. The lens is disposed in the shell and exposed by the opening. The two first ribs are disposed on the top plate, extending directions of the two first ribs are perpendicular to the left sidewall and the right sidewall, and the opening is disposed between the two first ribs. The sliding cover is slidably disposed on the shell for covering the opening. The two second ribs are disposed on a top cover body of the sliding cover, and one of the two second ribs is located between the two first ribs.

Abstract: A projector includes at least one light source module, at least one light valve module, a projection lens, and at least one heat dissipation structure. The at least one light source module is configured to provide an illumination beam. The at least one light valve module is disposed on a transmission path of the illumination beam and is configured to convert the illumination beam into an image beam. The projection lens is disposed on a transmission path of the image beam and is configured to project the image beam. The at least one heat dissipation structure is connected to the at least one light valve module.

Abstract: A projector includes a light source module, a light valve, and a projection lens. The light source module is adapted to provide an illumination light beam and includes a base having first and second side surfaces, first and second color light-emitting units respectively disposed on the first and second side surfaces, and first and second heat dissipation structures respectively connected to the first and second color light-emitting units. The first and second heat dissipation structures are separated from each other and define an accommodation space together. The light valve is located on a transmission path of the illumination light beam and adapted to convert the illumination light beam into an image light beam. The projection lens is located on a transmission path of the image light beam and adapted to project the image light beam.

Abstract: A projection apparatus including a casing, a light source module, a light source heat dissipation module, an optical engine module, an optical engine heat dissipation module, and a projection lens is provided. The casing has an air inlet and an air outlet. The light source module is disposed in the casing. The light source heat dissipation module is disposed in the casing and connected to the light source module. The optical engine module is disposed in the casing and includes a liquid crystal panel. The optical engine heat dissipation module is disposed in the casing and connected to the liquid crystal panel. Airflow enters the casing from the air inlet, passes through the optical engine heat dissipation module and the light source heat dissipation module in sequence, and flows out of the casing from the air outlet. The projection lens is connected to the casing.

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: An electronic apparatus includes a main body, at least one fan in the main body, an audio receiving module on the main body, and a control module electrically connected to the audio receiving module and the fan. If the audio receiving module receives an activation command, the control module records an instant value of a rotation speed of the fan and controls the rotation speed to be decreased. After the rotation speed is reduced, if the audio receiving module receives a voice command within a predetermined time period, the electronic apparatus executes the voice command, and the control module controls the rotation speed to be returned to the instant value; if the audio receiving module does not receive the voice command within the predetermined time period, the control module controls the rotation speed to be returned to the instant value.

Abstract: A projector includes a light source module, a light valve, and a projection lens. The light source module is adapted to provide an illumination light beam and includes a base having first and second side surfaces, first and second color light-emitting units respectively disposed on the first and second side surfaces, and first and second heat dissipation structures respectively connected to the first and second color light-emitting units. The first and second heat dissipation structures are separated from each other and define an accommodation space together. The light valve is located on a transmission path of the illumination light beam and adapted to convert the illumination light beam into an image light beam. The projection lens is located on a transmission path of the image light beam and adapted to project the image light beam.

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 device includes a light source module, an optical engine module, a projection lens, a housing, and at least one first heat dissipating element. The housing comprises a first end and a second end opposite to each other. The at least one first heat dissipating element is disposed in the housing, and each of the at least one first heat dissipating element includes a first plate portion, a second plate portion, and a first fin portion. The first plate portion is connected to the light source module. The second plate portion is connected to the first plate portion. The first fin portion is connected to the second plate portion and includes a plurality of first fins arranged at intervals. These first fins are arranged between the first end and the second end.