Qisda Corporation

Po-Fu Wu

Chi-Cheng Lin

Chih-Ming Chang

Hsin-Che Hsieh

Wei-Jou Chen

Hung-Jen Wei

Yu-Fu Fan

Chuang-Wei Wu

Chi-Jen Chen

Chun-Ming Shen

Yi-Chen Ho

Hao-Chun Tung

Chih-Kang Peng

Tzu-Huan Hsu

Fang-Chieh Lu

Yi-Ling Lo

Ching-Huey Wang

Fu-Shiung Shih

Chih-Ming Hu

Yen-Tsun Lin

Yuan-Yu Hsiao

Chun-Jung Hu

An unmanned vehicle includes a body and a plurality of battery packs. The battery packs are detachably stacked on the body, wherein the body sequentially uses the power of the battery packs in an anti-gravity direction.

Unmanned vehicle

An image displaying device includes a planar display panel and a light penetrating unit. The planar display panel displays a plane image. The planar display panel at least includes a first pixel group, a second pixel group and a third pixel group. The second pixel group is located between the first pixel group and the third pixel group. When vision passes through the light penetrating unit toward the planar display panel, the vision acquires a second distance of a second imaging position within the plane image relevant to the second pixel group relative to the planar display panel being greater than a first distance of a first imaging position within the plane image relevant to the first pixel group relative to the planar display panel and a third distance of a third imaging position within the plane image relevant to the third pixel group relative to the planar display panel.

Image displaying device

An calibration kit includes a base, a combination of calibration parts, and a manipulation part. The combination of calibration parts is disposed on the base and includes a first calibration part and a second calibration part. The first calibration part has a first calibration surface. The second calibration part has a second calibration surface. The first calibration part and the second calibration part are relatively movable in a movement direction and are movable relative to the base. The manipulation part is movably or rotatably disposed on the base. The manipulation part is configured to be operable to drive the first calibration part and the second calibration part to move in the movement direction relative to the base, so that the combination of calibration parts forms a three-dimensional calibration surface configuration through the first calibration surface and the second calibration surface.

Calibration kit for an optical scanning device

A heat-dissipating device includes a casing and a heat dissipating fin set. The casing has a first hole structure. The heat dissipating fin set includes a protruding fin, a sheltering component and a bridging component. A hollow chamber of the protruding fin has a first opening and a second opening adjacent to each other. The first opening is connected to an inner space of the casing. The sheltering component is disposed on the protruding fin to shelter the second opening. The bridging component is connected to the protruding fin and fixed onto the first hole structure.

Heat-dissipating device

A display system and a control method are provided. The display system includes a display device, an illumination device and a control circuit. The display device includes a display panel. The display panel is configured to display an image frame. The illumination device is movably disposed on the display device. The illumination device selectively projects light in a first direction or in a second direction different from the first direction. When the illumination device projects the light in the first direction, the control circuit generates a first control signal so as to control the illumination device to perform a first illumination mode. When the illumination device projects the light in the second direction, the control circuit generates a second control signal so as to control the illumination device to perform a second illumination mode different from the first illumination mode.

Display system and control method

A plurality of test pads are formed on a first substrate or a second substrate. A plurality of first solder joints are reserved on a first surface of the first substrate, and each of the first solder joints is coupled to at least a test pad or to another first solder joint through at least a first trace. A plurality of second solder joints are reserved on a second surface of the second substrate. Each of the second solder joints is coupled to at least a test pad or to another second solder joint through at least a second trace. A plurality of dummy solder balls are formed between the first solder joints and the second solder joints. Probes are coupled to the test pads to measure circuit characteristics between the test pads.

Method for testing solder balls between two substrates by using dummy solder balls

The present invention provides a display device. The display device includes a display module, a first mounting frame, one or more electromotive driving elements, and a control module. The display module is disposed on and spaced from a setting surface and has a display surface. The first mounting frame is spaced from the display module and is disposed on the setting surface. The electromotive driving elements are disposed on the first mounting frame and face the display module relatively. The control module controls display of the display surface based on a display signal, and controls each of the electromotive driving elements to selectively generate an attractive force and a repulsive force with respect to the display module based on an actuation signal, so as to change a distance of the display module from the first mounting frame, a setting angle of the display module with respect to the setting surface, or a combination thereof.

Display device

An optical module includes a driving unit, a first color wheel, a second color wheel, a first electromagnet, a plurality of first magnets and a polarity control unit. The driving unit has a rotating shaft. The first color wheel is fixed on the rotating shaft. The second color wheel is freely disposed on the rotating shaft. The first electromagnet is disposed on the first color wheel and the first magnets are disposed on the second color wheel. The driving unit drives the first color wheel to rotate, such that the first electromagnet rotates along with the first color wheel. The polarity control unit controls a direction of current flow in the first electromagnet to control a polarity of the first electromagnet, such that the first electromagnet attracts one of the first magnets during rotation to drive the second color wheel to rotate along with the first color wheel.

Optical module

A light source module for providing an illumination light is presented. The light source module comprises a case, a light source, at least one first fan blade, a wavelength transforming unit and a driver. The case has an accommodation space, and the light source provides an excitation light to the accommodation space. The first fan blade and the wavelength transforming unit are disposed in the accommodation space. The wavelength transforming unit receives the excitation light from the light source. The excitation light is transformed into the illumination light through the wavelength transforming unit. The driver includes a driving shaft and a stator for rotating the driving shaft. The stator is located outside the accommodation space. The driving shaft passes through the case and connects to at least one first fan blade. A first air flow is generated by the first fan blade driven by the stator rotating the driving shaft. The first air flow flows inside the case. A projector is also provided.

Light source module and projector with fan and driver

The invention provides a three-dimensional object scanning device using structured lights and method using the same. A combination of specific monochrome light sources is used to construct the content of the structured lights to form a predetermined image, which is projected to the three-dimensional object such as an intraoral object. The combination of blue and green lights effectively eliminates reflective interference of the red or white environment within the intraoral space. Default patterns of the predetermined image are distinguished from one another by using well designed arrangement of color blocks so that specific coding information of location may be embedded and exploited.

Three-dimensional object scanning device using structured lights and method for scanning three-dimensional object using structured lights

An optical engine module and a projector having the same are provided. The optical engine module includes an optical engine housing having a sound outlet, a light modulation unit disposed in the optical engine housing, and a heat dissipation tube disposed on the optical engine housing at an outer side of the optical engine housing and configured to dissipate heat from the optical engine housing. The heat dissipation tube communicates with the sound outlet. Noise is generated when the light modulation unit is operated. The noise travels from the sound outlet into the heat dissipation tube and is reflected back through the heat dissipation tube to the sound outlet to form a reflected sound wave, and the heat dissipation tube has a length enabling the reflected sound wave and the noise to have a phase difference of 180 degrees.

Optical engine module and projector having the same

An image capturing device includes an image capturing unit, a light filter module, a light sensing unit, an infrared light source and a processing unit. The light filter module includes a first light filter and a second light filter. The first light filter filters an infrared and allows a visible light to pass. The second light filter filters a visible light and allows an infrared to pass. The light sensing unit senses an environmental light. When the processing unit determines that an intensity of the environmental light is higher than a threshold, the processing unit alternately switches the first light filter and the second light filter to a front of the image capturing unit, controls the image capturing unit to capture a visible light image through the first light filter, and controls the image capturing unit to capture an infrared image through the second light filter.

Image capturing device and image capturing method for alternately switching two light filters

An object displacement detection method includes capturing n images of an object for obtaining n sets of image dots, where the object corresponds to an iset of image dots in an iimage of the n images; performing (n&#x2212;1) difference calculations using the n sets of image dots to obtain (n&#x2212;1) sets of difference image dots, where a jset of difference image dots of the (n&#x2212;1) sets of difference image dots is generated by performing a jdifference calculation of the (n&#x2212;1) difference calculations using a (j+1)set of image dots and a jset of image dots of the n sets of the image dots; and determining the object has displaced when a sum of numbers of the (n&#x2212;1) sets of difference image dots reaches a first threshold.

Object displacement detection method for detecting object displacement by means of difference image dots

An intraoral scanning system includes a motion sensing unit, an image sensing unit, a storage unit and a processing unit. The processing unit classifies first position information and second position information obtained by the motion sensing unit and the image sensing unit in an initial scanning process into first groups and second groups, wherein the first position information and the second position information are stored in the storage unit. The processing unit selectively uses the first groups or the second groups to perform comparison in a re-scanning process, so as to position an incomplete area in a model.

Intraoral scanning system and intraoral scanning method

A projector includes an apparatus casing, a light source module, a flow generating device, a sensing module, and a power module. The light source module is disposed inside the apparatus casing and includes a light-emitting part and a lampshade surrounding the light-emitting part. The flow generating device can generate an air flow for dissipating heat by the light source module. The sensing module is disposed in the apparatus casing and includes a thermo-sensitive component disposed near the lampshade and located in a flowing path of the air flow. The power module is disposed in the apparatus casing and electrically connected to the light source module and the sensing module. The power module selectively stops powering the light source module according to an electric parameter of the thermo-sensitive component. Thereby, the invention protects the projector from being overheated by use of the thermo-sensitivity of the thermo-sensitive component.

Growing community of inventors

Taipei, Taiwan

Po-Fu Wu