Industrial Technology Research Institute

Chien-Shien Yeh

Yu-Jen Wang

Yi-Cheng Chen

Sheng-Chih Shen

Chung-De Chen

Hung-Chung Li

Yu-Ran Wang

Ming-Jye Tsai

Pin Chang

Yi-Chang Chen

Chia-Ching Lin

Shyang-Jye Chang

Ching-Chang Chen

I-Kai Pan

Chien Li

Tai-Feng Wu

Chung-Jui Lee

Chi-Hsiung Teng

Liang De Wang

A mechanical encoder including an assembly, a flexible element, and a signal sensing module is disclosed. The assembly has a plurality of poking/stiring structure that provides poking/stirring function. The flexible element includes a first piezoelectric layer and a second piezoelectric layer. The first piezoelectric layer and the second piezoelectric layer are stacked on each other via an attach material. The flexible element is set up so that the poking/stiring structures stir/poke a first end of the flexible element, so as to output an electrical signal responsive to deformation of the flexible element. The signal sensing module receives the electrical signal to generate a position signal and a direction signal corresponding to the movement of the poking structures.

Mechanical encoder

A two-dimensional scanning and reflecting device includes a vibration component and a scanning component. The vibration component has a free end. The scanning component includes a frame body, a mass block, and a mirror. The frame body is connected to the free end of the vibration component. A natural frequency of the mirror corresponds to a second frequency. The mass block is disposed on the frame body in an eccentric manner, and the mass block and the natural frequency of the mirror correspond to a first frequency. When the vibration component receives a multi-frequency signal having the first frequency and the second frequency, the mirror vibrates in an axial direction with the first frequency, and vibrates in another axial direction with the second frequency.

Two-dimensional scanning and reflecting device

A vibration-actuated micro mirror device comprises a substrate, a swinging frame, a reflection mirror, and a vibration part. The swinging frame is rotatably arranged within a first accommodating space formed on the substrate. The reflection mirror is rotatably arranged within a second accommodating space formed on the swinging frame. The vibration part further comprises a plate coupled to the substrate, and a first and a second vibration structures. The first and the second vibration structures are coupled to the plate and are spaced a distance away from each other, wherein the first vibration structure receives a first driving signal having a first frequency and the second vibration structure receives a second driving signal having a second frequency smaller than the first frequency, thereby enabling the swinging frame to rotate about the first axis while enabling the reflection mirror to rotate about the second axis.

Vibration-actuated micro mirror device

The present invention provides a vibration-actuated micro mirror device comprising a substrate having a swinging frame and a reflection mirror, and a vibration part having a first and a second vibration structures coupled to the substrate, wherein the first vibration structure is driven to generate a first complex wave formed by a first and a second wave signals while the second vibration structure is driven to generate a second complex wave formed by a third and a fourth wave signals, and the first and the third wave signals are formed with the same frequency and phase while the second and the fourth wave signals are formed with the same frequency but opposite phases. The first and the second complex waves actuate the substrate such that the swinging frame is rotated about a first axis while the reflection mirror is rotated about a second axis.

A movable lens module includes a plate type piezoelectric driving unit, a movable stage, a lens base and a lens group. The movable stage is in contact with the plate type piezoelectric driving unit, and is driven by the plate type piezoelectric driving unit to move. The lens base is disposed on the movable stage. The lens group includes at least one lens installed in the lens base. An optical lens module can be assembled by components of the movable lens module.

Movable lens module and optical lens module

An ultrasonic linear motor includes a substrate; a vibrator disposed on the substrate having an oblique or curved face at two sides thereof forming concave receiving portions with the surfaces of the substrate; and a slider having clamping portions at two sides thereof for correspondingly clamping to the receiving portions, wherein the vibrator is for generating a driving force to the slider while connecting with a power supply, such that the clamping portions of the slider move within the receiving portions, thereby generating a linear translation. The present invention adopts a simple structure having few elements that enables easy manufacturing and integration with other elements, thus reducing manufacturing cost.

Ultrasonic linear motor

A micro-droplet generator comprises a main body, having a chamber accommodating liquid to be sprayed and a lateral opening, a spraying plate, placed in the opening and having a plurality of spraying holes as well as an inner side, a vibrating element, glued on the spraying plate and driving vibrations thereof, and a projection, placed inside the chamber and having an outer side touch with the inner side of the spraying plate, wherein a narrow space is left between the inner side of the spraying plate and the outer side of the projection, which upon the vibrations of the spraying plate has a varying width, upon becoming wider sucking in liquid from the chamber, and upon becoming narrower pressing out liquid through the spraying holes.

Micro-droplet generator

The present invention provides a liquid atomizer for atomizing liquid and applied in an atomizing device having an accommodating space and a through hole. The liquid atomizer includes a vibrating element having a first hole corresponding to the through hole; a spray plate having a plurality of spraying holes corresponding to the first hole and being connected with the vibrating element; and a structure element having a second hole corresponding to the plurality of spraying holes of the spray plate and being connected with the spray plate so that the spray plate is disposed between the vibrating element and the structure element. The vibrating element, the spray plate and the structure element are assembled in the accommodating space of the atomizing device. Liquids are atomized via the spraying holes of the spray plate.

Liquid atomizer

A spraying device comprises a spraying plate, having a plurality of tiny holes, a vibrating element, set on a periphery of the spraying plate, and driving a vibrating movement thereof, a wrapping layer, made of soft material and tightly surrounding the vibrating element, sealing the vibrating element from the liquid, and a fastening cap, allowing for quick mounting and dismounting of the spraying device; wherein the vibrating movement of the spraying plate causes liquid adjacent to a lower side of the spraying plate to be periodically compressed and thereby to be pressed through the holes of the spraying plate, and wherein the wrapping layer prevents external interference with the vibrating movement, at the same time minimizing transmission losses of vibrational energy, enhancing effectivity of spraying.

Growing community of inventors

Tainan County, Taiwan

Chien-Shien Yeh