Session Index

We propose an optical system of Mixed Reality HMD, consist of freeform prism as collimator, electrically tunable liquid crystal lens to adjust the projected angle of the virtual display image creating image at different depth from the sight of view and a spherical mirror to combine two parts.

 

Use of intravenous drip to constantly pay attention to the situation, bit detection can improve the efficiency of health care staff, but also to allow the family to rest assured that the use of intravenous drip, as long as the water level reached the set height, will be warned.

 

This study uses software to simulate Laser headlight. Using thick lens formula, then the lens is optimized with conic constant and size effect. As a result, the optimum parameters can be obtained at a radius of curvature of 13.5 mm and a spherical coefficient of -0.5 with LED size 2.1mm.

 

There are two conversion coordinate methods of two different coordinate frames with each other. We can compute the inclination of reflector corresponding any inclination of incident light in the experimental rotatable range. The results are shown that the accuracy of homography is 88.6%, and the accuracy of interpolation is 89.4%.

 

The phase retardation of a plastic tape is measured using our home made polarimeter. The utilized optical elements are all plastic. The measured phase retardation shows a good agreement with that measured by a commercial polarimeter.

 

In this study, the FCARs retro-reflector consisting of pins array technology is studied in accordance with EU ECE regulations. The new structures of FCARs is designed by opto-mechanics software, respectively. The simulation experiments are demonstrated that 5% higher retro-reflection efficiency. Furthermore, output can be directed in the 0.330 direction.

 

In this study, we developed a lens thickness measurement system by confocal microscopy technique. In the cases of measurement of the central thickness of a lens, the experimental results were a little different with the micrometer for thickness measurement. Our method achieved a measurement resolution of approximately 3 um.

 

In this study, an innovative triggered frequency difference moiré method for full-field wafer warpage measurement is proposed, with "moiré" as its core technology, combining the advantages of laser collimators, scanning profiling method and subfringe analysis. The triggered frequency difference method allows for high resolution, high stability measurement under high-speed rotation.

 

This project is aimed to setup a simple framework of the non-scanning, non-contact, non-interferometric, reflection-type of three-dimensional profilmeter. The total error percentage is below 1%, and the lateral and axial resolutions are 1.88 μm and below 1.25 μm, respectively, in the measuring range of 2400μm*1800μm*440μm.

 

In this study, the DCARs retro-reflector consisting of pins array technology is studied in accordance with EU ECE regulations. The new structures of DCARs is designed by opto-mechanics software, respectively. The simulation experiments are demonstrated that 7% higher retro-reflection efficiency. Furthermore, output can be directed in the 0.20 direction.

 

In this study using Optics design of reflectors of Outdoor UV LED mosquito-trapping Device. The purpose of this study is to expand the trapping range, in a simpler and lower cost to capture the effect of capturing more mosquitoes, is conducive to the public use.

 

When the liquid crystal is applied to different voltages, the phenomenon of double refraction is caused to some extent, which is formed with o-ray and e-ray. The angle between these two rays can be controlled and can be used to create stereo vision when used with a wedged glass plate.

 

An overcomplete dictionary that learns atoms from image patches following the error reduction algorithm is proposed to recover the phase object. A learned amplitude object was then incorporated into the object constraints of the Gerchberg-Saxton algorithm. Our method can far surpass the traditional phase retrieval algorithms.

 

A counter-beam light is designed to optimize the light distribution to meet the requirement of tunnel lighting regulations.The counter-beam lights and T5 lights are arranged in a tunnel,simulating the light luminance of each area by LITESTAR software,which demonstrated that CIE88:2004 regulations can be met.

 

An optical reflector designed to reflect light reaching 0.2° and 0.33° upward in the contra-direction of incident light to meet the requirements of EU and US regulatory.The designed reflex composes of the pins coupled to each other to maximize the reflectivity.The optimization process is done by opto-mechanics design software