Abstract: A lens module includes a lens assembly, an actuator, an encoder, and a controller. The actuator is connected to the lens assembly. The encoder is connected to the actuator and linked with the actuator. The encoder includes a first portion and a second portion. The first portion includes multiple areas, and each of the areas includes at least one conductor. The second portion includes multiple conductive contacts. When the actuator drives the encoder to move, the second portion moves relative to the first portion, and the encoder outputs a voltage signal according to whether the conductive contacts are in contact with the at least one conductor in the areas. The controller is electrically connected to the encoder and the actuator. The controller determines a state of the encoder according to the voltage signal. A projection device and a method for adjusting the lens module are also disclosed.

Abstract: A light source fixing assembly includes an optical engine housing, a circuit board, a light emitting element, a flexible circuit board, a fixing element and an abutting element. The circuit board has a bearing surface, a first fixing region and a first conductive bonding region. The first bonding region and the light emitting element are on the bearing surface. The flexible circuit board is between the optical engine housing and the circuit board. The flexible circuit board has a first surface, a second surface opposite to the first surface, and a second fixing region. The second surface has a second bonding region. The fixing element fixes the circuit board and the flexible circuit board onto the optical engine housing. The abutting element abuts against the flexible circuit board and corresponds to the second bonding region, so that the first bonding region is electrically connected to the second bonding region.

Abstract: A projector device including a first body, a second body that the first body stacked on, a rotating shaft connecting the first and the second bodies, a projection lens module arranged in the first body and having a projection optical axis not parallel to the rotating shaft, an optical engine module arranged in the first body for providing a projection beam along the projection optical axis, a heat sink, and a fan is provided. The rotating shaft is located on a virtual plane parallel to the projection optical axis. The heat sink and the fan are arranged in the first body and beside the optical engine module. The fan and at least one-half of the heat sink are located on a first side of the virtual plane, and the projection lens module is located on a second side opposite to the first side of the virtual plane.

Abstract: An adjustable optical module including a housing, an optical component and a cover component is provided. The housing has a positioning slot and an opening. The optical component is rotatably disposed on the positioning slot and includes an optical film and a carrying base for carrying the optical film. The carrying base includes an adjusting lever corresponding to the opening, and the adjusting lever is adapted to adjust an angle of the optical film. The cover component is fixed on the housing and covers the opening, and the cover component presses against the adjusting lever to fix the optical film. A projector having the adjustable optical module described above is also provided. The adjustable optical module and the projector of the invention can adjust the angle of the optical film through the above structures.

Abstract: An adjustable optical module including a housing, an optical component and a cover component is provided. The housing has a positioning slot and an opening. The optical component is rotatably disposed on the positioning slot and includes an optical film and a carrying base for carrying the optical film. The carrying base includes an adjusting lever corresponding to the opening, and the adjusting lever is adapted to adjust an angle of the optical film. The cover component is fixed on the housing and covers the opening, and the cover component presses against the adjusting lever to fix the optical film. A projector having the adjustable optical module described above is also provided. The adjustable optical module and the projector of the invention can adjust the angle of the optical film through the above structures.

Abstract: A projection apparatus includes a projection unit, a base and a pivoting member. The projection unit includes a light source, a light valve and a lens. The light source provides an illumination beam, the light valve converts the illumination beam into an image beam, and the lens projects the image beam. The base is connected to the projection unit and has at least one first stopping portion. The pivoting member is pivoted to the base and has at least one second stopping portion. The pivoting member is adapted to connect to an external power supply device, the base and the pivoting member are adapted to relatively rotate so as to adjust an angle of the projection image.

Abstract: A projection apparatus includes a projection unit, a base and a pivoting member. The projection unit includes a light source, a light valve and a lens. The light source provides an illumination beam, the light valve converts the illumination beam into an image beam, and the lens projects the image beam. The base is connected to the projection unit and has at least one first stopping portion. The pivoting member is pivoted to the base and has at least one second stopping portion. The pivoting member is adapted to connect to an external power supply device, the base and the pivoting member are adapted to relatively rotate so as to adjust an angle of the projection image.

Abstract: A projection device including a housing, an optical engine, and a power connector is provided. The housing has a front end portion, a rear end portion opposite to the front end portion, and a projection opening. The optical engine is disposed within the housing and includes a projection lens, a first light-emitting element, and a second light-emitting element. The projection lens is adapted to output an image beam through the projection opening. The first light-emitting element and the second light-emitting element are respectively thermally coupled to a first coupling portion and a second coupling portion of the housing. The housing has a heat separation for separating the first coupling portion and the second coupling portion. The power connector is connected to the rear end portion.

Abstract: A projection device including a housing, an optical engine, and a power connector is provided. The housing has a front end portion, a rear end portion opposite to the front end portion, and a projection opening. The optical engine is disposed within the housing and includes a projection lens, a first light-emitting element, and a second light-emitting element. The projection lens is adapted to output an image beam through the projection opening. The first light-emitting element and the second light-emitting element are respectively thermally coupled to a first coupling portion and a second coupling portion of the housing. The housing has a heat separation for separating the first coupling portion and the second coupling portion. The power connector is connected to the rear end portion.

Abstract: A heat dissipation module includes a base, a lamp, a fan, an orientation-sensing element and a motor. The lamp is disposed on the base, and the fan is disposed on the base for inducing an air flow and cooling down the lamp. The orientation-sensing element generates an orientation signal, and the motor rotates the base according to the orientation signal to allow the base to be substantially parallel to a horizontal plane. A rotational axis of the motor is substantially aligned with a central axis of the lamp.

Abstract: An optical projection system and a lens position adjustment mechanism thereof are provided. The lens position adjustment mechanism includes a fixed cover, a lens mount, a force-exertion element, and a movable element. A pivot part of the lens mount is inserted into a pivot hole of the fixed cover so as to allow the lens mount to pivot on the fixed cover. The force-exertion element is disposed on the pivot part of the lens mount, and two ends of the force-exertion element are respectively connected to a fixed pillar of the fixed cover and a fixed part of the lens mount to force the lens mount to rotate along a first rotation direction. The movable element pushes a block part of the lens mount to force the lens mount to rotate along a second rotation direction opposite the first rotation direction.

Abstract: A heat dissipation module includes a base, a lamp, a fan, an orientation-sensing element and a motor. The lamp is disposed on the base, and the fan is disposed on the base for inducing an air flow and cooling down the lamp. The orientation-sensing element generates an orientation signal, and the motor rotates the base according to the orientation signal to allow the base to be substantially parallel to a horizontal plane. A rotational axis of the motor is substantially aligned with a central axis of the lamp.

Abstract: A waterproof communication apparatus comprises a core part and a separate external housing. The core part is a combination having at least one seam, and is used to transmit electromagnetic waves. The separate external housing covers the core part to prevent environmental moisture from entering the inside of the communication apparatus through the seam. A pair of engaging parts having complementary shapes is equipped with the seam of the combination so as to further prevent the molten material of the separate external housing from entering the inside of the communication apparatus during the manufacturing process. In another embodiment, the core part and separate external housing are made of metals and are combined by a metallurgic method.

Abstract: A waterproof communication apparatus comprises a core assembly having at least one seam, configured to transmit an electromagnetic wave; and a seamless enclosure enclosing the core assembly, configured to prevent the ingress of atmospheric moisture through the at least one seam into the inside of the core assembly. In one embodiment, the core assembly and the enclosure are made of metallic materials, and a metallurgical bond is formed between the core assembly and the enclosure.

Abstract: A waveguide includes a first waveguide member and a second waveguide member. The second waveguide member is combined with the first waveguide member to form a through hole. The first waveguide member includes a first shell and two first wing portions connected to the first shell, and the two first wing portions form a first plane. The second waveguide member includes a second shell and two second wing portions connected to the second shell, and the two second wing portions form a second plane. Bulged strips are formed at the inner rims of the second plane neighboring the through hole and extend along a longitudinal direction of the through hole, and the bulged strips protrude the second plane.

Abstract: An adjustable assembly apparatus includes a waveguide phase shifter and a waveguide multiplexer. The waveguide phase shifter has a first flange structure and the waveguide multiplexer has a second flange structure. The second flange structure and the first flange structure are embedded, and the polarization directions of the waveguide phase shifter and the waveguide multiplexer are orthogonal. In an embodiment, the first flange structure includes a bulge, the second flange structure includes a recess, and the bulge is embedded in the recess. The polarization directions of the bulge of the waveguide phase shifter and the recess of the waveguide multiplexer differ by 90 degrees.

Abstract: A waterproof communication apparatus comprises a core part and an external part. The core part is a combination having at least one seam, and is used to transmit electromagnetic waves. The external part covers the core part to prevent environmental moisture from entering the inside of the communication apparatus through the seam. A pair of engaging parts having complementary shapes is equipped with the seam of the combination so as to further prevent the molten material of the external part from entering the inside of the communication apparatus during the manufacturing process. In another embodiment, the core part and external part are made of metals and are combined by a metallurgic method.

Abstract: A waterproof communication apparatus comprises a core assembly having at least one seam, configured to transmit an electromagnetic wave; and a seamless enclosure enclosing the core assembly, configured to prevent the ingress of atmospheric moisture through the at least one seam into the inside of the core assembly. In one embodiment, the core assembly and the enclosure are made of metallic materials, and a metallurgical bond is formed between the core assembly and the enclosure.

Abstract: An adjustable assembly apparatus includes a waveguide phase shifter and a waveguide multiplexer. The waveguide phase shifter has a first flange structure and the waveguide multiplexer has a second flange structure. The second flange structure and the first flange structure are embedded, and the polarization directions of the waveguide phase shifter and the waveguide multiplexer are orthogonal. In an embodiment, the first flange structure includes a bulge, the second flange structure includes a recess, and the bulge is embedded in the recess. The polarization directions of the bulge of the waveguide phase shifter and the recess of the waveguide multiplexer differ by 90 degrees.

Abstract: A waveguide includes a first waveguide member and a second waveguide member. The second waveguide member is combined with the first waveguide member to form a through hole. The first waveguide member includes a first shell and two first wing portions connected to the first shell, and the two first wing portions form a first plane. The second waveguide member includes a second shell and two second wing portions connected to the second shell, and the two second wing portions form a second plane. Bulged strips are formed at the inner rims of the second plane neighboring the through hole and extend along a longitudinal direction of the through hole, and the bulged strips protrude the second plane.