Abstract: An illumination module includes a light source configured to emit an illumination light beam, a reflective light valve disposed on a path of the illumination light beam and configured to form a plurality of pixels, a lens, and an image sensing module. Each pixel is adapted to be switched between a first state and a second state. The pixels in the first state among the pixels are configured to reflect the illumination light beam into an effective light beam. The pixels in the second state among the pixels are configured to reflect the illumination light beam into a complementary light beam. The lens is disposed on a path of the effective light beam and configured to project the effective light beam to an area to be illuminated. The image sensing module is disposed on a path of a complementary light beam from the reflective light valve and configured to sense the complementary light beam.

Abstract: An ultrasonic transducer array including a plurality of transducers is provided. The transducers are arranged in an array along an arrangement direction and include a plurality of first transducers and a plurality of second transducers. Every two first transducers of the first transducers sequentially form a plurality of first channels along the arrangement direction. Every m second transducers of the second transducers sequentially form a plurality of second channels along the arrangement direction, where m?2. The first transducers and the second transducers are arranged staggeredly along the arrangement direction. A first pitch between any two adjacent first channels in the first channels is less than a second pitch between any two adjacent second channels in the second channels. A resolution of the first channels being driven to scan is lower than a resolution of the second channels being driven to scan. An ultrasound probe is also provided.

Abstract: A projection method includes establishing a projection map of an environmental space according to at least one displacement vector and at least one deflection angle of a projector, identifying at least one feature position point in the environmental space by using a distance sensor, updating the projection map for generating a projection feature map according to the at least one feature position point, and calibrating a projection surface projected by the projector for compensating distortions of the projection surface.

Abstract: A diffusion module including a motor, a washer, and a light diffusive material is provided. The motor has a rotation plate. The rotation plate is adapted to rotate around a central axis of the motor. The light diffusive material is sandwiched between the washer and the rotation plate.

Abstract: A pixel circuit and a display device are provided. The pixel circuit includes a light-emitting component, a first light sensor, and a variable resistor. The first light sensor receives a first operation voltage, and provides a first control voltage according to an intensity of a first sensed light. The variable resistor adjusts a resistance value provided therefrom according to the first control voltage so as to adjust a current value of a driving current flowing through the light-emitting component.

Abstract: This disclosure provides a display device and an audio playing method. The display device includes a processor, a first communication interface, and a second communication interface. The first communication interface is electrically connected to the processor and a player device. The second communication interface is electrically connected to the processor. In response to the processor receiving an audio detection command from the player device through the first communication interface, the processor determines whether a connection port of the second communication interface has a preset voltage. In response to the processor determining that the connection port of the second communication interface does not have the preset voltage, the processor responds to the audio detection command to occupy an audio system logical location. In response to the processor determining that the connection port of the second communication interface has the preset voltage, the processor ignores the audio detection command.

Abstract: A projector includes a light source module, a light valve, and a projecting lens. The light source module includes a light-emitting element, a light diffusion assembly, a first structural component, and a first temperature-sensing element. The light-emitting element is adapted to emit an illumination light beam. The light diffusion assembly is adapted to diffuse the illumination light beam. The light diffusion assembly has a front end and a rear end opposite to each other, the front end of the light diffusion assembly faces the light-emitting element, and the rear end of the light diffusion assembly faces the first structural component. The first temperature-sensing element is disposed on the first structural component and corresponds to the light diffusion assembly. The light valve is adapted to convert the illumination light beam from the light source module into an image light beam. The projecting lens is adapted to project the image light beam.

Abstract: An ultrasonic transceiver device and a control method thereof are disclosed. The ultrasonic transceiver device includes a plurality of coupled ultrasonic transceiver units. Each of the ultrasonic transceiver units includes a plurality of ultrasonic oscillators, a driving bias circuit coupled to the ultrasonic oscillators and used to receive an alternating current (AC) voltage, and a switching circuit coupled to the driving bias circuit. The switching circuit has a plurality of switching paths corresponding to a plurality of impedance values or a plurality of inductance values. The switching circuit is used to switch a system driving signal to pass through one of the switching paths according to a mode selection signal and transmitted to the driving bias circuit as the AC voltage.

Abstract: An unmanned aerial vehicle (UAV) having a dismantling status determination system is provided. The UAV includes a casing, having at least one casing assembly, and a dismantling status determination system. The dismantling status determination system includes a dismantling detection unit, a position detection unit, a storage unit, and a processing unit. The dismantling detection unit is disposed on the at least one casing assembly to provide a body status information according to whether the at least one casing assembly is detached. The position detection unit detects a current position of the UAV. The storage unit stores a safe position list. When the processing unit determines that the at least one casing assembly is in the dismantling status, the processing unit determines whether the current position is included in the safe position list. If not, the processing unit determines that the dismantling status corresponds to an illegal dismantling action.

Abstract: An ultrasonic sensor has a capacitance micromachined ultrasonic transducer (CMUT) with three metal layers and four insulating layers. A first metal layer receives a reference voltage, a second metal layer receives a direct current voltage, and a third metal layer receives an alternating current voltage. A cavity formed between the first metal layer and the second metal layer allows for mechanical vibration of the CMUT, which generates ultrasonic waves.

Abstract: An ultrasonic transducer device and a manufacturing method thereof are provided. The ultrasonic transducer device includes a substrate, an ultrasonic oscillation unit and an upper insulating layer. The ultrasonic oscillation unit is disposed on the substrate and configured to emit or receive an ultrasonic wave. The ultrasonic wave has a resonant frequency. The upper insulating layer covers the ultrasonic oscillation unit. The upper insulating layer has a film thickness positively related to the resonant frequency.

Abstract: An ultrasonic transducer device including a substrate and an ultrasonic oscillation unit is provided. The ultrasonic oscillation unit is disposed on the substrate. The ultrasonic oscillation unit includes a first electrode layer, a first insulating layer, a second electrode layer, a second insulating layer, a plurality of capacitor protrusions, and a cavity located between the first insulating layer and the second insulating layer. The capacitor protrusions are disposed in the cavity by being disposed on at least one of the first insulating layer and the second insulating layer. The first insulating layer and the second insulating layer are separated by a gap and are located between the first electrode layer and the second electrode layer. The height of each of the capacitor protrusions is less than a height of the gap.

Abstract: A projector device including a device body, a first heat dissipation component, a second heat dissipation component, a third heat dissipation component, and a heat dissipation fan. The device body includes a light emitting element, a wavelength conversion element, a light valve, and a projection lens. The first heat dissipation component, the second heat dissipation component, and the third heat dissipation component are connected to the light emitting element, the light valve, and the wavelength conversion element. The heat dissipation fan has an air outlet surface and is adapted to provide a heat dissipation airflow. The air outlet surface faces at least one of the first heat dissipation component, the second heat dissipation component, and the third heat dissipation component. The first heat dissipation component, the second heat dissipation component and the third heat dissipation component are all located on at least one flow path of the heat dissipation airflow.

Abstract: An illuminating device includes: a projection device, a light receiving device and a processor. The projection device includes: a light source configured to generate a light beam; a photogate device located on an optical path of the light beam, the photogate gate device includes a first photogate located on the light incident surface of the photogate device; and a second photogate located on the light exit surface of the photogate device. The light receiving device is configured to sense a first image light and a second image light of the object to be detected through a sensing path when the first structured light and the second structured light are projected to the object to be detected. The processor is coupled to the light receiving device for analyzing the first image and the second image of the object to be detected.

Abstract: A measurement module is adapted to be disposed in a target object, including a corner prism space and multiple measurement units. The corner prism space includes two bottom surfaces opposite to each other and multiple side surfaces. The measurement units are disposed on the side surfaces of the corner prism space respectively. Each of the measurement units has a positioning reference axis perpendicular to the corresponding side surface. A number of the measurement units is the same as a number of the side surfaces, and the number of the measurement units is at least five.

Abstract: The present disclosure is related to an ultrasonic module and an ultrasonic probe having the same. The ultrasonic module comprises a frame component, an ultrasonic oscillating component, an acoustic lens and an adhesive component. The ultrasonic oscillating component is accommodated in the frame component. The acoustic lens is disposed on the frame component. The adhesive component is accommodated in the frame component. The frame component is disposed between the acoustic lens and the ultrasonic oscillating component. The frame component has a first opening 10 formed at one end adjacent to the acoustic lens. The ultrasonic oscillating component is disposed on a side of the first opening close to the adhesive component. The acoustic lens is in contact with the ultrasonic oscillating component through the first opening.

Abstract: A computer operating system is provided. The computer operating system includes a control host, a display device, and a mouse. The display device is connected to the control host. The mouse is connected to the control host. The control host is used to generate a first mouse icon on the display device and generate a second mouse icon on the display device when the first mouse icon exists, wherein a pattern of the first mouse icon is different from a pattern of the second mouse icon.

Abstract: A probe including a shell, an ultrasonic transducer unit, and at least one circuit board is provided. The ultrasonic transducer unit is disposed in the shell and includes a substrate, a vibrating membrane, and an anti-resonance structure. The vibrating membrane is disposed on the substrate and forms a cavity with the substrate. The anti-resonance structure is disposed on one side of the substrate facing away from the vibrating membrane and includes a hard layer and a glue layer connected to each other. The density of the glue layer is different from the density of the hard layer. The at least one circuit board is electrically coupled to the ultrasonic transducer unit. A method of fabricating the ultrasonic transducer unit is also provided.

Abstract: A three-dimensional image generation method includes projecting a first light pattern to an object to generate a first image at a first time, capturing the first image, projecting a second light pattern to the object to generate a second image at a second time, capturing the second image, generating a third image corresponding a third time according to the first image and the second image, and generating a three-dimensional image of the object according to the first image, the second image and the third image. The first time precedes the second time, and the second time precedes the third time.

Abstract: Disclosed is an illuminating device, including first and second light sources, first and second light receiving elements, a display module, and a projection module. The first and second light sources are for generating first and second light beam respectively. The first and second light receiving elements, located on the optical paths of the first and second light beams respectively, are for converging the first and second light beams respectively. The display module, located on the optical paths of the first and the second light beams, receives the first and second light beams and generates corresponding first and second image beams respectively. The projection module, located on the optical paths of the first and second image beams, projects the first and second image beams. A first etendue of the first light beam is greater than a second etendue of the second light beam.