Acute Applied Technologies Inc.

Geee Creations, Inc.

Taiwan Semiconductor Manufacturing Comp. Ltd.

Li-Chung Peng

Yarn-Chen Chen

Chin-Sung Liu

Chun-Wen Cheng

Chia-Hua Chu

Yao-Te Huang

Yu-Nu Hsu

Chi-Ling Chang

An-Ying Huang

The present invention provides a shell for a lighting device. The shell comprises a first lamp body, a second lamp body, a first connecting part, and a second connecting part. The ends of the second lamp body have a first end surface and a second end surface. The first connecting part lying along a first direction is set in the first end surface and threads through the first bottom surface. The second connecting part lying along a direction opposite to the first direction is set in the second end surface and threads through the second bottom surface. When the first lamp body is connected with the second lamp body, the two ends of the first lamp body are disposed extending over edges of the first end surface and the second end surface separately.

Seamless connecting shell and lighting device using the same

MEMS devices and methods for utilizing sacrificial layers are provided. An embodiment comprises forming a first sacrificial layer and a second sacrificial layer over a substrate, wherein the second sacrificial layer acts as an adhesion layer. Once formed, the first sacrificial layer and the second sacrificial layer are patterned such that the second sacrificial layer is undercut to form a step between the first sacrificial layer and the second sacrificial layer. A top capacitor electrode is formed over the second sacrificial layer, and the first sacrificial layer and the second sacrificial layer are removed in order to free the top capacitor electrode.

Multi-sacrificial layer and method

Lamp holder

Lamp tube

An objective lens holding apparatus includes an upper supporting portion and a bottom supporting portion not parallel with each other. The upper supporting portion and the bottom supporting portion have respectively one end connecting to an objective lens holder and another end connecting to a supporting arm anchor dock. The objective lens is mounted to the objective lens holder and is prevented from incurring an inclined angle while the objective lens is yawing. The elastic supporting arm anchor dock can keep the high resonant frequency within a desired range to enhance the stability of the optical pick-up head during reading and writing operations.

Objective lens holding apparatus

An electromagnetic actuator with an improved utilization rate of magnetic circuit for efficiently moving an objective lens on micro levels along a focusing direction and a tracking direction is disclosed. The electromagnetic actuator includes two homopolar parts spaced with a clearance small enough for generating magnetic force lines including a first and a second smooth portions which are preferably linear. The electromagnetic actuator further includes a first and a second actuating coil sets connected to the holder of the objective lens for moving the objective lens along the focusing and the tracking directions, respectively. The first and the second actuating coil sets are arranged around the homopolar parts with coil walls thereof substantially perpendicular to the first and the second smooth portions, respectively, so that they themselves move in the focusing and/or tracking directions in response to the currents and the magnetic force lines applied thereto to actuate the lens holder.

Electromagnetic actuator having specific coil arrangement for improving utilization rate of magnetic circuit thereof

An apparatus with ring shape sleeve is provided. The apparatus is attached to a shaft and moves around the shaft, the varieties of the apparatus comprise objective lens holder of pick-up head. The characteristic of the invention is that apparatus and shaft are attached by ring shape sleeves where not only thickness of any ring shape sleeve is thin enough such that draft angle effect is negligible but also ring shape sleeve can be inlayed in the apparatus or be molded integrally with the apparatus. Therefore, not only shaft and apparatus are rigorously attached but also the space between shaft and apparatus is significant decreased. Thus, dynamic behavior of the apparatus is more controllable and yield of the apparatus is improved.

Apparatus with ring shape sleeves

An electromagnetic actuator for efficiently moving an objective lens along a focusing direction and a tracking direction. The electromagnetic actuator includes a flux generator, a first set of coils, a second set of coils and a magnetic piece. A first magnetic part and a second magnetic part of the flux generator are placed within a gap for generating smooth magnetic lines of force. The first set of coils moves the objective lens along the focusing direction. The second set of coils provide micro rotation around a shaft to the objective lens, and magnetic pieces are placed in the magnetic circuit adjacent to the gap. The objective lens holder is held at the neutral position relating focusing and tracking directions while the magnetic attraction forces are acting on the magnetic pieces.

Electromagnetic actuator for obtaining micro movement and micro rotation of an object

An objective lens holder applicable in a pickup head of an optical media device is disclosed. The lens holder overcomes the problems of unstable movement and complicated assembly of the conventional lens holders. The invented lens holder uses four stripe-like resilient supporting arms, which are made from a unitary sheetmetal by a press-cutting and a bending process, to support the lens carrier and the lens. One ends of the supporting arms are settled with a fixing member when the fixing member is resin-molded, and the other ends are linked with the lens carrier. Each supporting arm includes two strips which ensure the supporting arm moving stably in the tracking direction and the focusing direction respectively. The assembly is simplified by the unitary sheetmeetal workings and the resin-molding process.

Growing community of inventors

Hsinchu, Taiwan

Li-Chung Peng