Industrial Technology Research Institute

Other

Litek Opto-electronics Co., Ltd.

Shih-Chou Chen

Tung-Chuan Wu

Ray-Ten Chen

Ruei-Hung Jang

Yuh-Sheng Lin

Lih-Huey Lai

Chih-Han Fang

Chen-Sheng Weng

Min-Chieh Chou

Hung-Yin Tsai

Shih-Che Lo

Cheng-Tang Pan

Jauh-Jung Yang

Chuan-Kang Mu

Hsi-Harng Yang

Chang-Ming Chen

Yun-Hui Chang

Chi-Wen Yang

Yuan-Ying Lu

Chung-Kuang Shieh

Wen-Wang Jiang

Chung-Kuang Hsieh

Chang-Chun Chen

Din-Ping Tsai

A light collimating system includes a transparent substrate, a plurality of conic elements and a screen. Each of the conic elements has a relatively narrow light incident side to which the screen is attached and a relatively wide light emitting side attached to the transparent substrate. Each of the conic elements has several segments which are arranged to form a truncated cone with an opening angle that decreases towards the light emitting side. The screen has a plurality of transmission areas covered by the light incident sides of the conic elements. Outside the transmission areas, incoming light is reflected from the screen. Diffuse light entering the conic elements through the transmission areas of the screen is collimated by refraction and total reflection at peripheral surfaces of the conic elements, resulting in a light bundle of narrow angular intensity distribution emanating from the transparent substrate.

Light collimating system

A production method of a light guide and a stamper, combining anisotropic etching and isotropic etching. First a plurality of microstructures is formed on a back surface and a front surface of the substrate. By electroforming, rear and front stampers are made from the back and front surfaces of the substrate. Light guides are produced using the rear and front stampers. Anisotropic etching is performed on the front surface of the substrate, forming V-shaped, U-shaped or pyramid like microstructures. Isotropic etching is performed on the back surface of the substrate, forming quadratic, bowl like, oval or semicircular microstructures. If a transparent substrate is used, then after finishing the etching of microstructures, a light source, a reflector, a diffusion sheet and a prism sheet are added, simulating a back light module for performing a test of luminosity, uniformity of light intensity and light emission angle, so that optical properties are known before proceeding with inverse-forming of the stampers.

Light guide and stamper production method

A process method of using excimer laser for forming micro spherical and non-spherical polymeric structure array includes a photomask which has a selected curved pattern formed thereon. The curved pattern has non-constant widths along a straight line direction. An excimer laser beam source is deployed to project through the photomask on a substrate coated with a polymeric material while the substrate is moving in a direction normal to the straight line direction for the polymeric material to receive laser beam projection with different time period. The polymeric material thus may be etched to different depth to form a three dimensional pattern desired. By projecting and etching the polymeric material two times at different directions or through different photomask patterns, a sphere like or non-sphere like surface of micro array structure may be obtained.

Process method of using excimer laser for forming micro spherical and non-spherical polymeric structure array

A disposal reaction module for providing a small amount of test agent to mix with a reaction agent for testing use. The module include a reaction chamber fluidly communicating with at least one test agent room. A piston in a gate room is located between the reaction chamber and the test agent room for controlling flow of test agent to the reaction chamber. The module may be made small size and portable to facilitate carrying. It is especially convenient and useful for field test use. People may do the test without direct contact with the reaction and test agents, and thus is safer to use than conventional method of using testing glasses and tubes.

Method of manufacturing disposable reaction module

A knock mode scanning near-field optical microscope comprises a light source member, an optical fiber probe connected at one end thereof with the light source member such that other end of the optical fiber probe forms a near-field point source of light, and that the optical fiber probe is attached with one end of a suspension arm member of an oscillation member. The oscillation member further has a piezoelectric ceramics, which is disposed on the suspension arm member, and is driven by a harmonic wave signal by a signal feedback member so as to bring about a change in amplitude and phase of the optical fiber probe in order to result in a feedback control.

Knock mode scanning near-field optical microscope

A manufacturing method for a high precision mold comprises the steps of (a) placing a plastic body on a conductor substrate, (b) forming a plurality of perforating apertures in the plastic body using X-ray deep etching molding, (c) rounding the edges at the front end of the perforating apertures using ultraviolet (UV) lithography, and (d) electroforming the high precision mold using the plastic body with perforating apertures as a model. A fiber connector sleeve can be further manufactured by (e) molding a fiber aligning element using the high precision mold, (f) molding a fiber sleeve body using an usual mold, and (g) combining the fiber aligning element with the fiber sleeve body using ultrasonic waves to form the fiber connector sleeve.

Manufacturing method for high precision mold

This invention relates to a disposable reaction module, capable of permitting small amount of test agents to mix with a reaction agent, having at least one test agent room, a reaction chamber capable of making fluid communication with said test agent rooms, and at least a gate room, situated between the reaction chamber and the corresponding test agent room. A piston is provided for controlling the flow of test agent into the reaction chamber. Being portable, the module is suitable for field test applications, especially without direct human contact, the module offers safer operations over those using conventional tubes and glasses.

Disposable reaction module

A bicycle generator including a coil stator and a magnetic rotor. The coil stator includes a planar support, and an induction coil portion formed by a plurality of series-connected coil units which are evenly spaced along the circumference of the planar support. The magnetic rotor is rotatable relative to and substantially parallel to the coil stator, and includes a permanent magnet having a plurality of magnetic pole pairs formed on its circumference. The number of coil units in the induction coil portion is equal to the number of magnetic pole pairs in the magnetic rotor, and the coil units is winded into trapezoid or sector shape, and the span angle of each of the magnetic pole in the magnetic rotor is substantially equal to the span angle of each of the coil units in the coil stator. Alternatively, the bicycle generator may comprises a cylindrical coil stator and a cylindrical magnetic rotor. The coil stator includes a cylindrical support having a first cylindrical surface, and a cylindrical induction coil portion formed by a plurality of series-connected coil units which are evenly spaced on the first cylindrical surface of the cylindrical support in the circumferential direction. The cylindrical magnetic rotor includes a second cylindrical surface and a permanent magnet having a plurality of magnetic pole pairs formed on the second cylindrical surface facing the cylindrical induction coil portion.

Bicycle generator

An improved swinging type generator for use in automatic wrist watches is disclosed. It contains: (a) a base with a center shaft hole, (b) a stator mounted on the base containing at least one layer of ring-shaped coil plate having at least one periodic-wave-shaped induction coil arranged on and along a circumference of the ring-shaped coil plate; (c) an unbalanced-and-weighted swinging magnetic rotor having a central rotary shape. The rotary shaft is mounted in the shaft hole of the base, and the unbalanced-and-weighted swinging magnetic rotor includes a magnetic ring having a plurality of magnets arranged in a head-to-tail manner along a circumference of the magnetic ring. In a preferred embodiment the induction coil has the shape of a multiple-cycle square-wave, and the angle of the square wave equals the magnetic angle, which is the angle formed between half of the arc length of an individual magnet of the magnetic ring and the center of the shaft hole, so as to maximize the electro-motive force that can be generated.

Swinging type power generator

An air-jet driven dynamic balance test apparatus for testing the dynamic balance of minrotors with minimum interference from external vibration noise. The dynamic balance test apparatus comprise a resilient supporting steel sheet having a horizontal bottom portion fastened to a base and an elongated upright body portion extended upwardly from the horizontal bottom portion to carry the sample to be tested. An air-jet generating device is provided to produce a continuous stream of compressed air for rotating the sample about its central axis. The resilient supporting steel sheet contains a resilient section for increasing sensitivity of said test apparatus. The resilient supporting steel sheet contains a resilient section, which can be the resilient steel sheet itself or in the form of a row of through holes or a corrugated section. A detector is mounted on the resilient supporting steel sheet to detect the vibration as the sample is being rotated during testing. An electromagnetic valve and a pressure regulating valve connected to an I/O interface of a master computer can be provided to automatically regulate the pressure of the continuous stream of the compressed air so as to control the revolving speed of the sample being tested at a predetermined constant rotation speed.

Growing community of inventors

Hsinchu, Taiwan

Shih-Chou Chen