[OPTICAL REVIEW Vol. 10, No. 3 (2003) 155-160]
© 2003 The Optical Society of Japan

Wireless Personal Information Terminal for Indoor Spatial Optical Communication System Using a Modified DataSlim2

Xin LIN* and Hideo ITOH

Cyber Assist Research Center, AIST Tokyo Waterfront, 2-41-6 Aomi, Koto-ku, Tokyo 135-0064, Japan

(Received February 25, 2003; Accepted April 1, 2003)

A compact Personal Data Assistant with a liquid crystal display called DataSlim2 is refitted and employed as a handheld mobile terminal for data uploading in an indoor laser radar communication system. In order to send and receive messages between the terminal DataSlim2 and its source laser radar, we first embed a corner-cube-array sheet behind the liquid crystal panel of the DataSlim2 to return the entering beam, regardless of orientation, exactly to its source laser radar, and then develop the application software programs to carry and modulate information with DataSlim2. Data transmission quality and reflectivity modulation capability of the DataSlim2 as a communication terminal are measured and evaluated.

Key words: spatial optical communication, information terminal, MDS2

*E-mail address: x.lin@aist.go.jp