Application for a LiDER System by using a Liquid Crystal Lens with Multiply-divided Ring Electrodes

Koji Kobayashi･Ryoya Takewaki･Shiryu Seki･Mikita Tsukui･Yuki Imai･Marenori Kawamura (Akita University)

We propose an application for a LiDER system by using a liquid crystal lens with multiply-divided ring electrodes. The optical phase difference of the LC lens was obtained by measuring interference fringes when the voltages were applied across the multiply-divided ring electrodes and bottom flat electrode. The focal length and the focused position of the light through the LC lens can be controlled by applying voltages to the electrodes without any mechanical movements.

Liquid Crystal Lens Systems with Multiply-Divided Circularly-Hole-Patterned-Electrodes and Four-Divided Circular-Electrodes

Ryoya Takewaki･Shiryu Seki･Kandai Tsukui･Koji Kobayashi･Yuki Imai･Marenori Kawamura (Akita University)

Liquid crystal (LC) lenses with tunable lens properties have been already reported. The lens properties can be electrically controlled with no mechanical movements. In this study, we propose a novel LC lens with multiply-divided circularly-hole-patterned- electrodes and four-divided circular-electrodes. The lens property such as the optical phase difference was measured by observing the interference fringes under crossed polarizers using a polarizing microscope. The focal length and the focused spot can be adjusted by applying voltages to the electrodes of the LC lens.

Development of Ceramic Electret and Application to Vibration Power Generation Device

Kazuhiko Kano･Takuya Igashira･Noriyuki Matsushita (DENSO)･Suguru Iwasaki･Yumi Tanaka (Tokyo University of Science)

We are developing an electrostatic vibration power generation device using electret, a material that retains charge semi-permanently, as a high-output MEMS independent power source for wireless sensors. In this lecture, we will introduce the development concept of a vibration power generation device and our efforts to develop electret materials using ceramics as a base material.

Early Software Maturity Approach in Dual Clutch Transmission Software Updated

Taiji Inoue･Nobuyuki Nishimura･Junpei Matsuda (Isuzu Motors)

In the development of the new Elf ISIM, the ECU (Electronic Control Unit) software was furbished. With the aim of early detection and countermeasures against potential defects in the software, the software which objectively monitors the behavior of TM was developed and implemented in the ECU. This paper introduces the effect.

Development of Resistant Design Method of Resin Case against Printed Circuit Board Overheating (Second Report)

Miwa Kawasaki･Tai Horikawa (Nissan Motor)･Hiroki Miyachi･Shintaro Yagi･Koki Koyama (F.C.C.)

We are developing a method for heat-resistant design of cases when the printed circuit board overheats, which is an issue when using a resin case. In order to carry out resistant design, it is necessary to quantify the amount of heat generated by the printed circuit board and the deterioration of the case material according to the amount of heat generated. In this presentation, we report the the deterioration of case materials during overheating of printed circuit board.