Session Index

Optical Design and Testing

Optical System Design and the Applications
Friday, Dec. 8, 2017  08:30-10:15
Presider: Shien-Kuei Liaw;Jing-Heng Chen
Room: International Research Building IR6002-A(6F)
08:30 - 08:45 Paper No.  2017-FRI-S0503-O001
Li-Hao Chiang Real-Time Monitoring System of 3D Printing using Machine Vision
Chien-Chung Tsai;Li-Hao Chiang;Jia-Yu Liou;Qi-Jie Wang

Adding the machine vision in 3D printer to detect, during the printed at the end of each layer, the industrial camera could compare the pattern of the real-time printing photograph and the draw of the design diagram slice drawing from LabVIEW. If found any problem will let 3D printer stop.

08:45 - 09:00 Paper No.  2017-FRI-S0503-O002
Chi-hung Lee High-precision Digital Rotary Encoder Based on Dot-matrix Gratings
Chi-hung Lee;Yi-Cheng Chen;Ming-Jie Chou

In this paper, a high-precision digital rotary encoder based on dot-matrix gratings (DMGs) is proposed for detecting shaft rotation and can achieve a fourfold resolution improvement. The DMG-based encoder is composed of a laser diode, a beam-shaping lens, a code disc, and a detector.

09:00 - 09:15 Paper No.  2017-FRI-S0503-O003
Asmida Herawati Microalgae Sensing Using Spectroscopic Ellipsometry Combined with Chromium Films
Asmida Herawati;Riza Ariyani Nur Khasanah;Lucky Zaehir Maulana;Eko Agus Suyono;Edi Suharyadi;Iman Santoso;Takeshi Kato;Satoshi Iwata

Spectroscopic Ellipsometry (SE) combined with Chromium (Cr) films was used for microalgae sensing. The result of SE measurement shows that the highest sensitive Cr thickness to the presence of microalgae is 75 nm in photon energy range of 2.4-3.3 eV.

09:15 - 09:30 Paper No.  2017-FRI-S0503-O004
Ting-Ju Kung The optical design of Optro-electronics 3D IC
Jiun-Woei Huang;Ting-Ju Kung;Ching-Tang Meng

By using reflective binary lens can provide threes times of effective focal lens than refractive lens, with the same quality optical performance of refractive lens, yet with limited space. The system can be integrated more easily with CMOS and read out circuit integrated in one 3-D IC.

09:30 - 10:00 Paper No.  2017-FRI-S0503-I001
Invited Speaker:
Le-Minh Hoa
Multiple input multiple output (MIMO) visible light communications – Design and Testing
Le-Minh Hoa

Office and home lighting sources are currently evolving through the traditional fluorescent and incandescent sources to the modern energy saving light bulbs and now white light emitting diodes (LEDs). This trend has been spurred on through global awareness of the necessity for reducing the size of our carbon footprint. The introduction of solid state LED lighting has attracted the attention of communications engineer’s worldwide, enabling the achievement of the dual functionality of room illumination whilst simultaneously transmitting wireless data via visible light communication (VLC). This technology offers advantages over the traditional wireless radio frequency (RF) communications system because of the signal quality, license free spectrum it occupies and data security. In order to achieve moderately uniform illumination within homes and offices, it is a common practice to use multiple LED lighting units. From the VLC viewpoint, these lighting units can be used as multiple transmitters each transmitting independent data streams, which forms the multiple-input-multiple-output (MIMO) system. MIMO VLC technique for visible light communications (VLC) facilitates higher data rate thanks to parallel data transmission.The talk will discuss on MIMO VLC technology, including system and sub-system design and testing, and further extend to the security, channel estimation features and camera-based VLC.

10:00 - 10:15 Paper No.  2017-FRI-S0503-O005
Wei-Cheng Chien An Integration Optical guided Structure to Enhance Inner and Out Coupling Efficiency of the OLED
Wei-Hsiang Wang;Chao-Heng Chien;Wei-Cheng Chien

There are many advantages like high contrast, wide viewing angle and low power consumption of OLEDs. However, OLEDs still have 40 % loss of light from ITO and glass layers. In this study, the optical loss was guided by integration optical guided structure to enhance out and inner coupling efficiency.