Beihang University

Other

Peking University

Dangxiao Wang

Yuru Zhang

Lei Wang

Yong Wang

Lei Ma

Lei Zhang

Jian Ken Song

Peijun Lv

Xiaohan Zhao

Yuchun Sun

Yuan Guo

Yongbo Wang

Chaohui Shi

Haihua Cui

Huifu Li

Dongdong Wang

Ziqi Wang

Hongdong Zhang

Qiqi Guo

Wenqi Ge

Yijie Gong

Ning Dai

Disclosed is a multi-tactile fusion feedback handle, characterized in that the handle comprises three areas, namely, a finger tactile function area, a palm tactile function area and a space positioning function area. The finger tactile function area comprises one or more tactile buttons, a finger can operate the tactile buttons alone or in combination, and the tactile buttons have feedback functions for one or more kinds of tactility, namely, softness, temperature, surface friction and texture, and shape. The palm tactile function area comprises a multi-point independent vibration source and/or a multi-point independent heat source, which can be used for multi-point independent vibration feedback and/or multi-point independent temperature feedback, as well as vibration flow and heat flow feedback. The space positioning function area comprises a space positioning module, which can obtain position information of the handle in space in real time. Compared with a traditional various discrete-type tactile feedback apparatus, the present invention gives a user a complete and realistic composite tactile experience in a virtual scene, and the handle is feasible in integration and convenient for holding.

Multi-modal haptics integrated feedback handle

Disclosed is a texture presentation apparatus driven by a high-density flexible electromagnetic coil array, including a surface layer and a driving layer. The surface layer is in direct contact with the fingertip of a finger to ensure interaction safety of a user, is capable of adjusting the friction force when the finger touches and slides on the surface layer, and has a shielding and protection effect on the driving layer; the driving layer includes a stretchable soft substrate and a plurality of micro driving units, each micro driving unit is independently controllable, the driving layer adjusts the microscopic geometric morphology of a texture surface; the texture presentation apparatus is capable of implementing multi-scale fine texture presentation; when the fingertip comes into contact with the surface layer, the texture presentation apparatus controls, based on different surface textures of an object to be simulated in a virtual environment.

Active texture presentation apparatus driven by high-density flexible electromagnetic coil array

A digital control laser automatic tooth preparation method and device and a tooth positioner are provided. The device includes an intra-oral three-dimensional scanner, a dental laser, an oral working end, an oral and maxillofacial cone beam CT scanner, a computer, a tooth positioner, a negative-pressure suction device and a real-time monitoring device. The computer is connected respectively with the intra-oral three-dimensional scanner, the dental laser, the oral working end, the oral and maxillofacial cone beam CT scanner, the negative-pressure suction device, and the real-time monitoring device. The dental laser is connected with the oral working end of the digital control laser tooth preparation control system through a light guiding arm (). The oral working end of the digital control laser tooth preparation control system is connected with the tooth positioner and the real-time monitoring device. The negative-pressure suction device is connected with the tooth positioner.

Method and apparatus for tooth body automatic preparation by digital controlled laser light and tooth retainer

A force feedback handle device with a degree-of-freedom includes: a driving part (), a link part () and a frame part (); wherein the driving part () and the link part () are both installed on a top board (), and a rotation axis of the link part () coincides with a rotation axis of the driving part (); the driving part (), the link part () and the frame part () are fixed and connected by bolts. A working method of the force feedback handle device includes four steps. The force feedback device of the invention has low inertia and high stiffness performance, which improves overall interaction performance of the force feedback device. The structure is simple and a manufacturing cost is low.

Force feedback handle device with a degree-of-freedom and working method thereof

Growing community of inventors

Beijing, China

Dangxiao Wang