Abstract: A heat dissipating module includes a casing including a bottom plate and a water inlet; a cover plate disposed on one side of the casing opposite to the bottom plate; a pressurizing device moving back and forth in the casing and having a maximum stroke; a water pump disposed between the bottom plate and the pressurizing device, where liquid fills a space between the water pump and the pressurizing device to define a water tank; and a stop valve disposed in the water tank and located between the pressurizing device and the water pump. According to a direction from the bottom plate to the cover plate, the height of the water inlet is lower than the stop valve. The heat dissipating module has a small volume and is configured to flip at multiple angles. A projection device including the heat dissipating module and having structural reliability is also provided.
August 2, 2022
February 2, 2023
Shi-Wen Lin, Wei-Chi Liu, Tsung-Ching Lin
Abstract: A light guide device having a first surface and a second surface opposite to each other is provided. The first surface includes a plurality of light guide microstructures arranged in a first direction. Cross sections of at least one part of the light guide microstructures in the first direction are non-isosceles triangles. Herein, a distribution position of the light guide microstructures whose cross sections are non-isosceles triangles are symmetrical to a central axis of the light guide device in the first direction, and a maximum base angle of the cross section of each of the light guide microstructures is away from the central axis. A display apparatus including the light guide device is also provided. Through the light guide device and the display apparatus provided by the disclosure, light emission intensity of the display apparatus at a large viewing angle is improved.
Abstract: A hand lifting device and a projection apparatus are provided. The hand lifting device is adapted to carry an object, and includes a support pad and a carrying strap. The support pad has a first surface and a second surface opposite to each other, and has two first connecting portions. The carrying strap has two end portions, and the two end portions respectively have a second connecting portion. The carrying strap is configured to partially surround the object, such that the second connecting portions of the carrying strap are respectively detachably connected to the first connecting portions of the support pad. The projection apparatus comprises the above hand lifting device and a projector.
Abstract: An HMD apparatus includes an image source, a light guiding element, a first modulating element, and a second modulating element. The image source provides an image beam. The light guiding element is arranged on a transmission path of the image beam to transmit the image beam. The light guiding element has a first surface and a second surface opposite to each other. The image beam undergoes total internal reflection at the first surface and is emitted from the second surface. The first modulating element is arranged on one side of the first surface of the light guiding element and configured to adjust a transmittance of an ambient beam. The light guiding element is arranged between the first and second modulating elements, and the second modulating element is configured to adjust a focus position of the image beam. The HMD apparatus may improve wearing comfort and achieve good display effects.
Abstract: A beam splitting element as provided includes an optical substrate and a diffuse reflection layer. The optical substrate is configured to reflect or allow the incident beam to pass through. The diffuse reflection layer is disposed on a portion of a surface of the optical substrate. The incident beam is split into first and second split beams through the beam splitting element and satisfies one of the following conditions: field angles of the first and second split beams exit from the beam splitting element are different; the field angles of the first and second split beams exit from the beam splitting element are the same, and exit directions of the first and second split beams are parallel to each other. A projection device having the beam splitting element is also provided.
Abstract: A wavelength conversion module, including a first substrate, a second substrate, a counterweight ring, a first wavelength conversion layer, and a second wavelength conversion layer, is provided. The first substrate has a first upper surface. The second substrate has a second upper surface. The counterweight ring is disposed on the first upper surface of the first substrate and the second upper surface of the second substrate to connect the first substrate to the second substrate. The first wavelength conversion layer is disposed on the first upper surface of the first substrate and located around the counterweight ring. The second wavelength conversion layer is disposed on the second upper surface of the second substrate and located around the counterweight ring. A wavelength of a first excited beam emitted by the first wavelength conversion layer is greater than a wavelength of a second excited beam emitted by the second wavelength conversion layer.
Abstract: A head up display including an image-light source, at least one reflector and a light modulation device is provided. The image-light source is configured to provide an image light. The at least one reflector is configured to transmit the image light to leave the head up display. On the transmission path of the image light, the light modulation device is disposed in the head up display. An ambient light enters the image-light source after passing through the light modulation device, and a light energy of the ambient light entering the image-light source is less than or equal to 25% of a light energy of the ambient light entering the head up display.
Abstract: A joint actuator of a robot including a driving device, a driving shaft, a reducer, a torsion sensor, and a dual encoder is provided. The driving shaft is connected to the driving device. The driving device is configured to drive the driving shaft to rotate. The reducer includes a motive power input component and a motive power output component. The motive power input component and the motive power output component are sleeved on the driving shaft. The motive power input component is disposed between the driving shaft and the motive power output component. The torsion sensor is connected to the motive power output component of the reducer. The dual encoder is connected to the driving device and the driving shaft. The driving device is located between the dual encoder and the reducer.
Abstract: A projector includes an outer casing and a projection module. The outer casing has a front end surface, a projection opening, and at least one heat dissipation opening. The projection opening and the at least one heat dissipation opening are located at the front end surface. The projection module is disposed in the outer casing and includes a light source module configured to provide an illumination beam, a light valve configured to convert the illumination beam to an image beam, and a projection lens protruding from the front end surface and is configured to project the image beam out of the outer casing through the projection opening. The projection module is configured to rotate relative to the outer casing to change a projection direction of the image beam and may be embedded in a ceiling and present a better appearance, and the projection direction of the projector is less restricted.
Abstract: A light source module, which includes a heat sink, a laser assembly, a circuit board assembly, a conductive material, and multiple lock members, is provided. The circuit board assembly includes a circuit board, which has an accommodating opening that corresponds to a beam emitter of the laser assembly. The lock members respectively pass through third lock holes of the circuit board assembly, second lock holes of the laser assembly, and first lock holes of the heat sink in sequence, thereby locking the circuit board assembly and the laser assembly on the heat sink. The accommodating opening of the circuit board exposes the beam emitter, and the conductive material connects two conductive pads of the laser assembly to two corresponding electroplated through holes, thereby enabling the laser assembly to be electrically connected to the circuit board assembly. A projector including the light source module is also provided.
Abstract: A projection apparatus including a projection device, a reflecting component, and an image capturing device is provided. The projection device is adapted to project an image light beam to form a projection image. The reflecting component is disposed on the projection device and has a reflecting surface. The image capturing device is disposed on the projection device and has an image capturing end. The image capturing end faces the reflecting surface. The reflecting surface is adapted to reflect the projection image to the image capturing end.
July 12, 2022
January 19, 2023
Jen-Yu Shie, Kuang-Hsiang Chang, Hung-Pin Chen, Heng Li
Abstract: A heat dissipation module, including a fan and a heat dissipation fin set, is provided. The fan has an air outlet side and an air inlet side opposite to each other. The heat dissipation fin set is configured at the air outlet side and includes a base, first heat dissipation fins, and second heat dissipation fins. The base is divided into a first area and a second area along a direction of a rotation axis of the fan. The first area is located between the air outlet side and the second area. The first heat dissipation fins are connected to the base and located in the first area, and arranged at equal intervals in a configuration direction perpendicular to the direction of the rotation axis. The second heat dissipation fins are connected to the base and located in the second area, and arranged at equal intervals in the configuration direction.
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 device, including an illumination light source, an electrochromic module, at least one light valve, and a projection lens, is provided. The illumination light source provides an illumination beam. The electrochromic module is disposed on a transmission path of the illumination beam. The electrochromic module includes at least one electrochromic element, and sequentially maintains or changes a wavelength of the illumination beam penetrating the at least one electrochromic element. The at least one light valve is disposed on the transmission path of the illumination beam transmitted by the electrochromic module to convert the illumination beam into an image beam. The projection lens is disposed on a transmission path of the image beam to project the image beam out of the projection device. The projection device and the use method thereof provided by the disclosure may change the color light output or the color space of a display image.
Abstract: A display device, including a first polarizing film, a pixel array module, a second polarizing film, and a first electronically controlled phase retardation module, is provided. The pixel array module is disposed in overlap with the first polarizing film. The second polarizing film is disposed in overlap with the pixel array module. The first electronically controlled phase retardation module includes a first liquid crystal layer, two first alignment layers, and two first conductive layers. The first liquid crystal layer and the first alignment layers are disposed between the first conductive layers. The second polarizing film is located between the pixel array module and the first electronically controlled phase retardation module. One of the first polarizing film and the second polarizing film directly contacts one of the first conductive layers of the first electronically controlled phase retardation module. The display device has a switchable viewing angle and is thinner and lighter.
Abstract: An illumination system includes a light source, a wavelength conversion element and a light guide column. The light source provides an excitation beam. The wavelength conversion element has a wavelength conversion portion for converting the excitation beam into a converted beam. The light guide column is disposed between the light source and the wavelength conversion element and located on a transmission path of the excitation beam. The light guide column has a first end, a second end opposite to the first end, a third end and a fourth end opposite to the third end. The third and fourth ends respectively face the light source and the wavelength conversion element. The third end receives the excitation beam. The excitation beam exits the first or fourth end, and the converted beam enters the light guide column through the fourth end and exits the first end. A projection device is also provided.
Abstract: A cushioning member includes a support portion, a first latch portion, a second latch portion, a first connection portion, a second connection portion, a first guide portion and a second guide portion. The first guide portion, the first latch portion, and the first connection portion are arranged opposite to the second connection portion, the second latch portion and the second guide portion on basis of the support portion as a center. When the first and second latch portions are in a relaxed state, a width of the support portion in a direction perpendicular to the axial direction is greater than a width of the first latch portion and a width of the second latch portion in the direction.
Abstract: A projection apparatus includes a casing, a projection lens, a first and a second light source modules, a first and a second thermal modules respectively thermally coupled to the first and the second light source modules, and a first and a second fans. The casing includes a bottom cover having a first air inlet corresponding to the projection lens, a front cover, a rear cover having a second air inlet, a first and a second side covers, which define an internal space divided into a first and a second areas. The first air inlet is connected to the internal space. A first air outlet of the first side cover and the second air inlet are connected to the first area. The first and the second light source modules, the first and the second thermal modules, and the first and the second fans are disposed in the first area.
Abstract: A backlight module includes a light guide plate, a light source, a first optical film, and a second optical film. The light source is disposed on one side of a light incident surface of the light guide plate. The first optical film is disposed between the light guide plate and the second optical film. An illumination beam from the light source has a first polarization component and a second polarization component perpendicular to the first polarization component. A ratio of the first polarization component to the second polarization component is greater than or equal to 1.2 and less than or equal to 10. The second optical film includes a substrate and a plurality of prism structures disposed between the substrate and the light guide plate. An included angle between an extending direction of the prism structures and the light incident surface is less than 5 degrees.
June 30, 2022
January 5, 2023
Yu-Sung Lai, Chung-Yang Fang, Shih-Wei Liu
Abstract: A heat-dissipating module including heat-dissipating fins and heat pipes is provided. The heat-dissipating fins include first and second heat-dissipating fins arranged in an interleaved, spaced apart manner, and arranged in parallel along a first direction. The first heat-dissipating fins have interleaved first vias and first breach holes. The second heat-dissipating fins have interleaved second vias and second breach hole. The first breach holes and the second breach holes are arranged along a second direction, and the second vias respectively correspond to the first vias. The first direction is not parallel to the second direction. The heat pipes are configured to pass through the first vias and the second vias. A position of the orthogonal projection of a first breach hole formed on the second heat-dissipating fins along the first direction and the corresponding second breach hole are not overlap or are partially overlapped, and are arranged in symmetry.