Integration of liquid crystal microlens array for light control devices

2014 Fiscal Year Final Research Report

• Project/Area Number: 24560058
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Applied optics/Quantum optical engineering
• Research Institution: Akita Industrial Technology Center
• Principal Investigator: YANASE Satoshi 秋田県産業技術センター, 電子光応用開発部, 上席研究員 (50370242)
• Co-Investigator(Kenkyū-buntansha): UCHIDA Masaru 秋田県産業技術センター, 電子光応用開発部, 主任研究員 (90370238) ; WANG Bin 秋田県産業技術センター, 電子光応用開発部, 非常勤研究員 (60533370)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: 液晶 / マイクロレンズ / アレイ / 集積化

Outline of Final Research Achievements

Integrated devices of liquid-crystal (LC) micro-lens-array (MLA) were investigated as novel applications of the LC lens. A LC-MLA having 150 micron diameter of circular hole patterns on the electrode was fabricated. The Lens power was able to reach 3000 (1/m) in each microlens element, and were confirmed to be controlled by the driving voltages. It was found that the LC-MLA functions as an optical diffusion device.
Moreover, a LC-MLA with micro slit electrodes was also fabricated and were confirmed to work as a cylinder lens array. Measurement results of the angular dependence were indicated to fit the 3D display application. Furthermore, by applying 2sets of slit electrode array to these LC-MLA, the gradient of one direction in the optical phase retardation distribution was observed. Then, the LC-MLA was confirmed to bend the path of the transmitted light of larger size than the slit pattern.

Free Research Field

液晶材料を用いた光デバイス