Session Index

A new counter beam light (CBL) with a 400W high pressured Sodium lamp was proposed for CIE:88 2004 regulated tunnel road lighting use. The optical component of the CBL was an optical reflector built by three curved metallic surface to control the beam pattern of the light.

 

We demonstrate the fabrication of the photo-aligned liquid crystal device and the characteristics of tunable phase retarder. We demonstrate two different subtract the fabrication and characteristic of AP(Anti parallel) LCD. The electro-optical properties and the transmittance change depending on the driving voltage are measured and discussed.

 

This study investigates the optical design of the planar LEDs using light shaping diffusers. Glare Control diffusers exhibit a variety of appearances depending on illumination conditions.

 

A LED light is proposed and demonstrated to serve as the counter beam light in tunnel lighting. Making use of a secondary freeform lens owning two curved surfaces and one flat metal reflecting surface to control a 150W LED emitting rays

 

This paper presents the optical model for a type of LED emitting a wavelength of 275 nm and the design of Fresnel lens with an acceptable optical utilization factor. We compare the results achieved between the simulation and the corresponding experiment.

 

The study demonstrates the packaging for polarization maintain fiber lens and pump laser and the results show that the relationship between fabrication tolerance and coupling efficiency and the relationship between fabrication tolerance and extinction ratio.

 

A mosquito-collecting component that can be externally attached to the air inlet of a light-emitting diode mosquito-trapping system was developed to optimize the efficiency of the mosquito-trapping lamp and increase mosquito-trapping capacity. Used the three-dimensional computer-aided design software SolidWorks to build the system Finally,data obtained, mosquito-trapping efficiency was optimized.


 

The fringe-resolved autocorrelator is a widely adopted system for measuring the
ultrashort pulse characteristic. Based on the nonlinear optical response of the light-emitting
diode (LED), we can build a low-cost fringe-resolved autocorrelator. The automation can be
achieved by synchronizing the reference beam movement and the photocurrent detection based
on LabVIEW.


 

We take carbon quantum dots, which are environmentally friendly and fluorescent colloidal quantum dot materials, as the research direction, and explore the effects of different solvents on their properties.

 

The study explores and compares the reconstructed diffuse optical images using fixed and flexible detection channels. The results exhibit the quality of reconstructed images were obtained since the scanning platform with flexible detection channels performing radial displacement may conform to the contour of breast.

 

We use plastic optical fibers to make optical fiber ranging sensors and install them on the robotic arm to help determine the robot arm to grip the target. Based on the characteristics of the optical fiber ranging sensor, develop an algorithm for the mechanical arm to grip the soft object.

 

A portable AI-assisted remote camera-based attack system is proposed for detecting potential threat. The system is composed of two webcam, two Raspberry pi, an air compressor, a pistol and a Google coral USB accelerator. Compared with conventional surveillance systems, this remote camera- and AI-based system possesses more flexibility and precision.

 

The Shack-Hartmann wavefront sensor (SHWS) is a powerful tool to monitor the optical wavefront and decomposed into Zernike modes in real time. We have shown that using the center detection algorithm doesn’t only improve the analysis accuracy but also allow the wavelength detection range cover from ultraviolet to visible band.

 

The sensing properties of negative curvature hollow-core photonic crystal fiber sensor by measurement are presented. The spectrum of the hollow-core photonic crystal fiber sensor is from sensing to different materials. The power loss is decreased as the refractive index of materials increased and having flattened variation at 1545-1560 nm wavelengths.