公开(公告)号：US20220249209A1

公开(公告)日：2022-08-11

申请号：US17582106

申请日：2022-01-24

Applicant: Qisda Corporation

Inventor： Chien-Hung LIN ,  Po-Fu WU ,  Jun-Ming SHEN ,  Szu-Fan CHEN ,  Yi-Ling LO

IPC: A61C9/00 ,  A61B1/00 ,  A61B1/24 ,  G02B26/08

Abstract: An oral scanner including a heating element, a reflecting element and a temperature difference generating element is provided. The temperature difference generating element has a high temperature end and a low temperature end. The high temperature end is connected to the reflecting element to heat the reflecting element, and the low temperature end is connected to the heating element to cool the heating element.

公开(公告)号：US20200310231A1

公开(公告)日：2020-10-01

申请号：US16822742

申请日：2020-03-18

Applicant: Qisda Corporation

Inventor： Chi-Cheng LIN ,  Po-Fu WU

IPC: G03B21/16 ,  G03B21/20 ,  G03B21/00

Abstract: 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.

公开(公告)号：US20250140088A1

公开(公告)日：2025-05-01

申请号：US18903112

申请日：2024-10-01

Applicant: Qisda Corporation

Inventor： Chih-Ming CHANG ,  Po-Fu WU

IPC: G08B13/06 ,  B64U20/80 ,  G01R33/07 ,  G08B21/18

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.

公开(公告)号：US20250042581A1

公开(公告)日：2025-02-06

申请号：US18638748

申请日：2024-04-18

Applicant: Qisda Corporation

Inventor： Chih-Ming CHANG ,  Po-Fu WU

IPC: B64U70/90

Abstract: A landing/takeoff response system and method for an UAV, including a fuselage having a housing and a flight power module connected to the fuselage, are provided. The system includes a first sensor for detecting a first sensing information, at least one second sensor for detecting a second sensing information, and a processing unit coupled to the first sensor and the second sensor. The first sensor is disposed on a bottom portion of the housing at a position below a center of gravity of the UAV. The second sensor is disposed on a side portion of the housing adjacent to the bottom portion. The processing unit is configured to: determine whether the first sensing information satisfies a first contact condition to determine a landing/takeoff operation of the UAV; and determine whether the second sensing information satisfies a second contact condition to determine an on/off status of the flight power module.

公开(公告)号：US20210224012A1

公开(公告)日：2021-07-22

申请号：US17147973

申请日：2021-01-13

Applicant: Qisda Corporation

Inventor： Po-Fu WU

IPC: G06F3/14

Abstract: 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.